• <tr id="yyy80"></tr>
  • <sup id="yyy80"></sup>
  • <tfoot id="yyy80"><noscript id="yyy80"></noscript></tfoot>
  • 99热精品在线国产_美女午夜性视频免费_国产精品国产高清国产av_av欧美777_自拍偷自拍亚洲精品老妇_亚洲熟女精品中文字幕_www日本黄色视频网_国产精品野战在线观看 ?

    Optimization of Field Arrangement of Doublecropping Glutinous Sorghum and Soybean Intercropping Pattern

    2015-02-05 03:30:32XueweiYINXiaochunZHANGPeihuaWANGHongCHENHongmeiWANG
    Agricultural Science & Technology 2015年6期
    關(guān)鍵詞:套作間作高粱

    Xuewei YIN,Xiaochun ZHANG,Peihua WANG,Hong CHEN,Hongmei WANG

    Institute of Feature Crops,Chongqing Academy of Agricultural Sciences,Chongqing 402160,China

    Optimization of Field Arrangement of Doublecropping Glutinous Sorghum and Soybean Intercropping Pattern

    Xuewei YIN,Xiaochun ZHANG*,Peihua WANG,Hong CHEN,Hongmei WANG

    Institute of Feature Crops,Chongqing Academy of Agricultural Sciences,Chongqing 402160,China

    In order to reduce successive cropping obstacles,optimize field arrangement of double-cropping of sorghum and soybean and improve yields,the research used Guojiaohong No.1 and Nandou No.12 as raw materials to explore the effects of different field arrangements on yield and benefits of double-cropping.The results indicated that with the double-cropping,both of gross yield and output value were higher compared with single-cropping treatments;yield,thousand-grain weight,the weight of grain per ear,and ear length of the 1st-season glutinous sorghum decreased as compartment width grew,and of regenerated sorghum and soybean changed from increasing to decreasing.Specifically,with double-cropping system, gross yield of glutinous sorghum reached the highest at 8 352.9 kg/hm2with compartment width of 1.7 m and soybean yield the highest at 1 888.95 kg/hm2with compartment width of 1.8 m.Additionally,gross output value and net incomes achieved the highest at 47 293.92 yuan/hm2and 29 976.42 kg/hm2for the two crops,with compartment width of 1.7 m,followed by the treatment with compartment width of 1.8 m.In general,the treatments with compartment widths of 1.7 and 1.8 m are optimal field arrangement.Additionally,output-to-input ratio was the highest in the treatment with single-cropping glutinous sorghum and the least in the treatment with single-cropping soybeans.

    Double-cropping glutinous sorghum;Soybean;Optimization of field arrangement

    M ultiple cropping is the traditional cultivation practice fully making use of sunshine,nutrients,water and soils,popular in the southwest of China,covering maize, sorghum,soybean,and potato.It is notable that a rational multiple cropping as per intercropping would improve gross production capacity and crop tolerance to diseases,increasing farmer’s incomes[1-3].Sorghum is a major raw material for China brewing industry and double-cropping glutinous sorghum has increasingly become a highly-efficient production system in southern regions in China with high accumulation temperatures,accompanying by increasing growing area.The planting model of multi-cropping is dominated by potato+sorghum+soybean,significantly enhancing crop tolerance to disease,yields and quality of crops[4-6].Li et al.[7]and Peng et al.[8]believed that intercropping of wild soybean would improve sorghum quality and resistance to disease.Furthermore,optimization of field arrangement coordinates the conflicts of the intercropped crops,formulating effective and highly-functioning compound system.Researches available concentrate on the effects of planting methods[9],width of maize plants[10]and fertilizer[11]on major agronomic characters and yield of soybeans under intercropping of maize and soybean. Zhang et al.[12],Zhu et al.[13]and Chen et al.[14]made comparisons of annual yield,productivity and profit of the treatments with maize and soybean in

    Materials and Methods

    Test regions

    The test was conducted in Western Chongqing Crop Experimental Station,Chongqing Academy of Agricultural Sciences,with an elevation of 325 m,and soil fertility maintains moderate or higher.It is sandy soil and the cultivation model was wheat/sorghum and regenerated sorghum/wheat.

    Test design

    The test used single-factor randomized block design,with three repetitions,and compartment widths were set at 1.5,1.6,1.7,1.8,1.9 and 2.0 m, with the treatments with singlecropped sorghum and soybean as controls,totaling 8 treatments.Besides,row ratio of sorghum and soybean was 2∶2;two rows of soybeans were grown in sorghum belts,with narrow-row distance of 40 cm;two rows of sorghums were grown in soybean belts,with narrow-row distance of 40 cm;row distance of the treatment with single-cropped sorghum was 60 cm and 60 cm also in the treatment with single-cropped soybean.The test region was 5 m in length and the two belts crops were grown successively in every test region.

    The test sorghum was Guojiaohong No.1,double-cropping glutinous sorghum,and test soybean was national approved Nandou No.12. Specifically,sorghum was grown with a density of 90 000 crops/hm2,and soybean was 120 000 crops/hm2.Besides,two seedlings of both crops were grown in every hole.For the 1stseaon glutinous sorghum,40%NPK compound-fertilizers were applied as base fertilizers at 600 kg/hm2,and urea was applied in jointing stage at 150 kg/hm2.As for the regenerated glutinous sorghum,compound fertilizer was applied at 300 kg/hm2,and urea was fertilized at 150 kg/hm2as seedling fertilizers.Soybeans were applied with calcium phosphate at 600 kg/hm2,and potassium chloride applied at 225 kg/hm2.Furthermore, urea was applied at 150 kg/hm2a week before blooming.Additionally, sorghum was transplanted as per seedling transplanting.Specifically, seedlings were cultivated on March 7,transplanted on April 10,and harvested on July 19,and the stalk was cut from the location 1-2 internodes to ground on July 20.Soybean seeds were sown on June 22.Other management was the same as local methods.

    Measurement items and methods

    In harvesting periods of the 1stseason and regenerated glutinous sorghums,plants from three holes,totaling 6 plants,which grew well,were selected to explore plant height,ear length,grain weight per ear,and thousand-grain weight.For soybean,the crops in three holes were also chosen during harvesting period to explore plant height,the height of pod,the number of productive branch,the number of grain per plant,and hundred-grain weight,as well as practical yield,investments and output-to-input ratio.The test data were processed with DPS 7.05 and Excel 2003.

    Results and Analysis

    Effects of different treatments on major agronomic traits and yields of sorghum

    As shown in Table 1,with different field arrangements,plant height of sorghum kept higher in the treatment with single-cropped sorghum and treatments showed insignificant differences.Furthermore,ear length,thousand-grain weight,the weight of grain per ear,and yield all maintained the highest compared with double-cropping treatments.It can be concluded that plant height,ear length,thousandgrain weight,the weight of grain per ear,and yield of the 1st-season sorghum reached the highest,whichincreased by 11.82%,5.87%,5.13%, 0.93%and 8.82%compared with regenerated sorghum in an average way.On basis of the treatments with different compartment widths,plant height of the 1st-season sorghum was growing upon compartment width,and maximum height achieved 247.4 cm; ear length,thousand-grain weight,the weight of grain per ear,and yield achieved the highest at 36.65 cm, 15.84 g,52.28 g,and 4 466.7 kg/hm2, respectively,and the lowest with compartment width of 2 m.In terms of regenerated glutinous sorghum,plant height kept increasing upon the width, and ear length,thousand-grain weight, the weight of grain per ear and yield changed from increasing to decreasing;ear length reached the maximum of 31.93 cm with compartment width of 1.9 m;thousand-grain weight reached the highest of 15.12 g,with compartment width of 1.8 m;the weight of grain per ear and yield achieved the highest of 51.95 g and 4 117.65 kg/hm2with compartment width of 1.7 m.Gross yield of single-cropping glutinous sorghum was the highest of 9 350.1 kg/hm2,followed by the treatments with compartment widths of 1.7, 1.8,1.6,1.5,1.9 and 2 m,accordingly.Effects of treatments on major a-gronomic traits and yields of soybeans

    Table 1Major agronomic traits and yields of sorghum

    As shown in Table 2,plant height, the number of effective branch,the number of effective pod per plant,the number of bean per plant,and yields in the treatment with single-cropping proved significantly higher compared with the treatment with double-cropping,at 74 cm,5.8,68.8,125.4,and 2 200.05 kg/hm2;the height of pod was the highest with compartment width of 2.0 m at 20.8 cm;hundred-grain weight reached the peak at 19.2 g, with compartment width of 1.7 m.On basis of the treatments with varied compartment widths of multiple-cropping,it can be concluded that both of plant height and pod height were growing upon compartment width. Specifically,plant height and pod height kept the lowest with compartment width of 1.5 m,at 61.7 and 17.6 cm and the highest at 74 and 19.8 cm, with compartment width of 2 m.On the other hand,the number of effective branch,the number of pod per plant, the number of bean per plant,hundred-bean weight,and yield changed from increasing to decreasing as compartment width grew.Specifically, the number of effective branch reached the highest in the treatments with compartment widths of 1.7 and 1.8 m,and the lowest with compartment width of 1.5 m,with insignificant differences among treatments;the number of effective pod per plant was the highest with compartment width of 1.6 m at 62.4 and the lowest with compartment width of 1.9 m,at 55.6, with extremely significant differences among treatments;the number of bean per plant was maximal with compartment width of 1.7 m at 106.9, and the lowest with compartment width of 1.5 m,at 94.8,with insignificant differences among treatments;hundredbean weight was the highest at 19.2 g with compartment width of 1.7 m and the lowest at 17.6,with compartment width of 1.5 m,with insignificant differences;the soybean yield achieved the peak at 1 882.35 kg/hm2with compartment width of 1.8 m and the lowest at 1 399.95 kg/hm2,with compartment width of 1.5 m.

    Analysis of yield and economic benefits of treatments

    Economic benefits are an important index for evaluating a planting mode.As shown in Table 3,gross output s of double-cropping of sorghum and soybean performed higher compared with the treatments with singlecropping of sorghum or soybean;bothof gross output value and net income reached the highest at 47 293.92 and 29 976 342 kg/hm2with compartment width of 1.7 m,increasing by 6 154.14 and 3 768.64 kg/hm2compared with the treatment with single-cropping sorghum and increasing by 34 973.64 and 22 928.6 kg/hm2,compared with the treatment with single-cropping soybeans,followed by the treatment with compartment width of 1.8 m.According to cost input analysis,gross investment of intercropping of sorghum and soybean was higher compared with the treatment with single-cropping treatment,as well as investments of labor and fertilizers,but the cost of pesticide and mulch were lower.Besides,output-to-input ratio was in the range of 2.34-2.76,and achieved the highest in the treatment with singlecropping sorghum,followed by the treatment with double-cropping of sorghum and soybean,with compartment width of 1.7 m,and the lowest in the treatment with single-cropping soybean.

    Table 2Major agronomic traits and yields of soybeans

    Table 3Analysis of yield and economic benefits of treatments

    Discussions

    The yield of double-cropping glutinous sorghum reached the highest in the treatment with single-cropping system.By double-cropping, however,plant height grew upon compartment width,but yield,thousand-grain weight,the weight of grain per ear,and ear length all declined, which is no consistent with the research made by Zhao et al.[15],possibly because the increased yield by marginal effect due to wide row of sorghum can not compensate the yield loss caused by decreased sowing area.Furthermore,yield,thousandgrain weight,the weight of grain per ear,plant height and ear length changed from increasing to decreasing of regenerated glutinous sorghum, because soybeans would provide shades for regenerated sorghum.As compartment width grew,the shading effects kept decreasing,and yield declined accordingly.However,when compartment width exceeded 1.7,the conflict among regenerated sorghum dominated,reducing yield.On the other hand,yield,the number of grain per ear,and hundred-grain weight of soybean changed from increasing to decreasing,possibly because the shading effects on soybean by the 1st-season sorghum declined,with increases of compartment width,increasing soybean yield.When compartment width was at 1.8 m,soybean yield achieved the peak,and soybean hole distance decreased,and conflict among the same crop aggravated,as compartment width grew,resulting in yield reduction,which disagree with the research of Zhang et al.[12],because the shading effects of maize performed better compared with sorghum,requiring larger compartment width.

    With double-cropping of sorghum and soybean,gross yield,output value and investment are all higher compared with single-cropping,due to double crops.With consideration of net incomes,it can be concluded that net incomes of the treatments with compartment widths of 1.5 and 2 m were lower compared with the treatment with single-cropping,might caused by irrational compartment width which preventing productivity of double-cropping.In production,only when the relationship of two species and the relationship of the same species are well considered could guarantee high yield and effects of crops.What’s more,it can be concluded from cost input analysis that double-cropping would effectively reduce disease of glutinous sorghum and soybeans,as well as labor cost concerning spraying pesticides,which is in consistent with the research conducted by Peng et al.[8].

    In double-cropping fields of glutinous sorghum,interannual variations of regenerated glutinous sorghum tended to be volatile,mainly under influence of temperature and rainfall.Because the accumulated temperature of regenerated sorghum is not enough, yields kept lower,and even crop failure.The research investigated doublecropping of glutinous sorghum and soybean,which improves sustainable production capacity of sorghum and soybeans by changing growing belts, cropping system,reducing successive cropping obstacles,and enhancing disease tolerance,and increases the interannual stability of yields by augmenting planting of soybeans.The model enjoys a promising prospect in double-cropping sorghum fields in the south.

    Conclusions

    The research indicated that with double-cropping of glutinous sorghum and soybean,yield of one of the crops reduced,but the gross yield was higher compared with individual crop. Specifically,with double-cropping system,gross yield of glutinous sorghum reached the highest at 8 352.9 kg/hm2with compartment width of 1.7 m and soybean yield the highest at 1 888.95 kg/hm2with compartment width of 1.8 m.Additionally,gross output value and net incomes achieved the highest at 47 293.92 yuan/hm2and 29 976.42 kg/hm2for the two crops,with compartment width of 1.7 m,followed by the treatment with compartment width of 1.8 m.In general,the treatments with compartment widths of 1.7 and 1.8 m are optimal field arrangement. Nevertheless,soil fertility,species characters,density,and fertilizers should be all considered in production promotion of sorghum fields.

    [1]HU GM(胡貴明).Effects of potato intercropping with sorghum on yield and benefits with different widths(馬鈴薯套作高粱不同廂寬對產(chǎn)量及效益的影響) [J].Modern Agricultural Science and Technology(現(xiàn)代農(nóng)業(yè)科技),2012,7: 118-120.

    [2]ZHENGSL(鄭順林),YUAN JC(袁繼超), LI DL(李德林),et al.Optimum plant patterns and group control under relay cropping mode of potatoes and corns (馬鈴薯,玉米套作模式下田間配置及群體優(yōu)化)[J].Chinese Potato Journal(中國馬鈴薯),2010,24(6):80-83.

    [3]NING TY(寧堂原),JIAO NY(焦念元), et al.Advances in resources intensive utilization,yield and quality in intercropping or relay cropping systems(間套作資源集約利用及對產(chǎn)量品質(zhì)影響研究進展)[J].Chinese Agricultural Science Bulletin(中國農(nóng)學(xué)通報),2007,23 (4):159-163

    [4]LI YC(李延超),LI ZY(李在源),LIU L(劉麗),et al.The intercropping technology of soybeans with sorghum(maize)with the row ratio of 5∶1(大豆5∶1行間套種高粱(玉米)技術(shù)示范)[J].Inner Mongolia Agricultural Science and Technology(內(nèi)蒙古農(nóng)業(yè)科技),2011(3):97

    [5]CHEN XW(陳鑫偉),WANG YM(王艷敏),ZHANG FJ(張福娟).Research of intercropping of soybean and sorghum (大豆與高粱間作套種試驗研究)[J]. Modern Agricultural Science and Technology(現(xiàn)代農(nóng)業(yè)科技),2010,20:62

    [6]MENG XZ(孟憲政),ZUO SX(左雙喜), YUAN HB(袁海波),et al.Intercroppingtest of sorghum and soybean(高粱、大豆間作套種試驗)[J].Abstract of Wheat· Seed Industry Review(麥類文摘·種業(yè)導(dǎo)報),2007(l):30.

    [7]LI CD(李川東),LI JN(李建農(nóng)),SHEN YX(沈益新).Influence of harvest date on quality of direct and mixed silage of forage sorghum and wild soybean(收獲時間對飼用高粱和野生大豆單、混表貯品質(zhì)的影響)[J].Chinese Journal of Grassland(中國草地學(xué)報),2008,30(5): 75-79

    [8]PENG Q(彭秋),LEI WQ(雷文權(quán)),HW QC(何慶才),et al.The effects of intercropping of sorghum and soybean on occurrence of snout moth's larva(高粱一大豆間作對高粱螟蟲發(fā)生的影響)[J]. Agricultural Technical Services(農(nóng)技服務(wù)),2008,25(9):69.

    [9]YU XB(于曉波),ZHANG MR(張明榮), et al.Agronomic charcters and yield distribution of different shade tolerance soybean under monoculture and relay strip intercropping system(凈套作下不同耐陰性大豆品種農(nóng)藝性狀及產(chǎn)量分布的研究)[J].Soybean Science(大豆科學(xué)),2012,31(5):757-761

    [10]WANG Z(王竹),YANG WY(楊文鈺), et al.Effects of maize plant type and planting width on the early morphological characters and yield of interplanted soybean(玉米株型和幅寬對套作大豆初花期形態(tài)建成及產(chǎn)量的影響)[J]. Chinese Journal of Applied Ecology(應(yīng)用生態(tài)學(xué)報),2008,19(2):323-329

    [11]LEI T(雷婷),XIANG DB(向達兵),et al. Effects of phosphorus and potassium fertilizers on dry matter accumulation, distribution and yield of relay strip intercropping soybean(磷鉀對套作大豆干物積累與分配及產(chǎn)量的影響)[J]. Journal of Zhejiang University(浙江大學(xué)學(xué)報),2012,38(3):318-328

    [12]ZHANG MR(張明榮),HE ZM(何澤民), et al.Optimal allocation technology for compound population of relay-intercropping maize with soybean(玉米套作大豆模式復(fù)合群體高產(chǎn)高效優(yōu)化配置技術(shù)研究)[J].Soybean Science(大豆科學(xué)),2012,31(4):575-578

    [13]ZHU XT(朱星陶),CHEN JQ(陳佳琴), TAN CY(譚春燕),et al.Optimization on Plant Row and Spacing Configuration of Maize and Soybean under 1∶2 Intercropping Planting Model(玉米與大豆“1:2”間作種植的株行距優(yōu)化配置研究)[J].Soybean Science(大豆科學(xué)), 2014,33(l):35-40.

    [14]CHEN Y(陳穎),ZOU CY(鄒超亞).A stusy on optimum structure disposition of intercroppings of maize-soybean complex and its productivity(玉米大豆間作復(fù)合群體優(yōu)化配置與生產(chǎn)力研究) [J].Source Science(資源科學(xué)),1999, 21(4):75-79.

    [15]ZHAO GL(趙甘霖),DING GX(丁國祥), et al.Study on cultivaiton techniques of wine(waxy)sorghum in southeast Sichuan(川東南釀酒(糯)高粱栽培技術(shù)的研究)[J].Southwest China Journal of Agricultural Sciences(西南農(nóng)業(yè)學(xué)報),2011,24(6):2116-2121.

    Responsible editor:Xiaoxue WANG

    Responsible proofreader:Xiaoyan WU

    雙季糯高粱間作大豆田間配置方式優(yōu)化

    尹學(xué)偉,張曉春*,王培華,陳紅,王紅梅(重慶市農(nóng)業(yè)科學(xué)院特色作物研究,重慶402160)

    為了減輕雙季糯高粱連作障礙,優(yōu)化雙季糯高粱、大豆田間配置結(jié)構(gòu),提高兩季作物產(chǎn)量效益,以常規(guī)雙季糯高粱‘國窖紅1號’、‘南豆12’為試驗材料,研究不同田間配置方式對糯高粱、大豆復(fù)合種植、凈作模式下產(chǎn)量、效益的影響。結(jié)果表明:復(fù)種模式下作物總產(chǎn)量、總產(chǎn)值均高于雙季糯高粱、大豆凈作模式,頭季糯高粱產(chǎn)量、千粒重、穗粒重和穗長隨廂寬的增加而降低,再生季糯高粱、大豆表現(xiàn)為先增后減的趨勢;雙季糯高粱總產(chǎn)量最高的為1.7 m開廂處理,達835.29 kg/hm2,大豆產(chǎn)量最高為1.8 m開廂處理,達1 888.95 kg/hm2,兩作物總產(chǎn)值、凈收益以1.7 m開廂處理最高,分別為47 293.92、2 997.642 kg/hm2,其次為1.8 m開廂處理,以上兩處理為最優(yōu)田間配置方式。產(chǎn)投比以凈作雙季糯高粱最大,凈作大豆最低

    雙季糯高粱;大豆;田間配置優(yōu)化different compartment widths(1.2-2 m)and row ratio(1∶2,2∶2 and 2∶4)and the results indicated that yields tended to be volatile upon compartment width and row ratio,and field arrangement is key for high yields of maize and soybean.Specifically,the research conducted by Sichuan Agricultural University is the most profound,formulating intercropping model of maize and soybean,as well as related technology system.Nevertheless,the whole growth term of double-cropping glutinous sorghum in the south(March-November)is three to four months longer compared with traditional cultivation way of maize or sorghum,because the intergrowth environment differs dramatically in terms of sunlight,temperature and water.Currently,much more attention is paid to double-cropping of maize and soybean, and less paid to multiple cropping of double-cropping glutinous sorghum and soybean.Hence,the research explored the effects of field arrangements of double-cropping glutinous sorghum and soybean in order to mitigate the conflicts between the two crops,formulating the width optimization technology of involved crops,enriching the multiple cropping models in the south and providing scientific references for productions at large scales.

    重慶市科技攻關(guān)計劃項目“再生釀酒高粱新品種培育與關(guān)鍵技術(shù)集成示范”(CSTC2012ggB80055);重慶市應(yīng)用開發(fā)類項目“丘陵旱地效益型復(fù)合種植模式集成與示范”(CSTC2013yykfA-80021);基本科研業(yè)務(wù)科研費“雙季糯高粱間作大豆與氮效應(yīng)研究”(2013cstc-jbky-00510)。

    尹學(xué)偉(1985-),男,河南平輿人,助理研究員,碩士,主要從事作物育種與耕作技術(shù)研究,E-mail:44611876@qq.com。*通訊作者,張曉春(1967-),男,重慶人,研究員,碩士,E-mail:1546688922@qq.com。

    2015-04-03

    修回日期 2015-05-16

    Supported by Chongqing Key Technologies R&D Program(CSTC2012ggB80055); Chongqing Application and Development Program(CSTC2013yykfA80021); Fundamental Research Funds(2013cstc-jbky-00510).

    *Corresponding author.E-mail:1546688922@qq.com

    Received:April 3,2015 Accepted:May 16,2015

    猜你喜歡
    套作間作高粱
    辨析輪作、間作和套種
    我終于認識高粱了
    高粱名稱考釋
    高粱紅了
    核桃柴胡間作技術(shù)
    河北果樹(2020年4期)2020-11-26 06:05:18
    桑園全年免耕周年套作技術(shù)進行專家測產(chǎn)
    遠離套作之嫌,力創(chuàng)真我之文—以2019年浙江高考考場作文為例
    套作條件下不同品種小麥產(chǎn)量及其構(gòu)成分析
    棗棉間作系統(tǒng)光合特性研究
    棗藥間作滴灌種植技術(shù)
    一a级毛片在线观看| 新久久久久国产一级毛片| 久久久国产精品麻豆| 伦理电影免费视频| 99精国产麻豆久久婷婷| 国产免费av片在线观看野外av| 咕卡用的链子| 亚洲av欧美aⅴ国产| 午夜精品国产一区二区电影| 激情在线观看视频在线高清 | av网站在线播放免费| 好男人电影高清在线观看| 成人手机av| 99久久99久久久精品蜜桃| 亚洲av日韩精品久久久久久密| av不卡在线播放| 亚洲综合色网址| 另类亚洲欧美激情| 伦理电影免费视频| 黄色片一级片一级黄色片| 国产精品免费视频内射| 首页视频小说图片口味搜索| 国产91精品成人一区二区三区| 精品国内亚洲2022精品成人 | 亚洲少妇的诱惑av| 亚洲精品国产色婷婷电影| 日本黄色日本黄色录像| 亚洲精品av麻豆狂野| 乱人伦中国视频| 日本一区二区免费在线视频| 91麻豆精品激情在线观看国产 | 波多野结衣一区麻豆| 午夜精品国产一区二区电影| 一级黄色大片毛片| 大型av网站在线播放| 12—13女人毛片做爰片一| 夜夜夜夜夜久久久久| 免费观看a级毛片全部| 亚洲人成伊人成综合网2020| 精品久久久久久久毛片微露脸| 久久精品国产a三级三级三级| xxxhd国产人妻xxx| 香蕉国产在线看| 日韩欧美一区二区三区在线观看 | bbb黄色大片| 国产不卡一卡二| 在线观看免费高清a一片| 亚洲成人免费av在线播放| 精品电影一区二区在线| 一级a爱视频在线免费观看| 国产aⅴ精品一区二区三区波| 国产精品二区激情视频| av天堂在线播放| 国产精品1区2区在线观看. | 嫁个100分男人电影在线观看| av网站免费在线观看视频| 国产免费现黄频在线看| 亚洲片人在线观看| 女人被躁到高潮嗷嗷叫费观| 中文字幕精品免费在线观看视频| 69精品国产乱码久久久| 极品教师在线免费播放| av中文乱码字幕在线| 两性午夜刺激爽爽歪歪视频在线观看 | xxxhd国产人妻xxx| 又大又爽又粗| 国产高清激情床上av| 丝袜美足系列| 一区二区三区精品91| 黄色视频不卡| 欧美精品亚洲一区二区| 这个男人来自地球电影免费观看| 777久久人妻少妇嫩草av网站| xxxhd国产人妻xxx| 欧美大码av| 日韩大码丰满熟妇| 美女午夜性视频免费| 最近最新中文字幕大全电影3 | av福利片在线| 亚洲,欧美精品.| 国产精品亚洲一级av第二区| 国产男女内射视频| 高清黄色对白视频在线免费看| 国产亚洲精品第一综合不卡| 亚洲中文日韩欧美视频| 99香蕉大伊视频| 成年人免费黄色播放视频| 在线观看www视频免费| 久久国产亚洲av麻豆专区| 亚洲人成电影观看| 日韩欧美一区二区三区在线观看 | 国产精品久久久久成人av| 中国美女看黄片| 天堂√8在线中文| 国产精品免费大片| 十八禁网站免费在线| 亚洲三区欧美一区| 最近最新中文字幕大全电影3 | 欧美国产精品一级二级三级| 麻豆av在线久日| 日韩欧美一区二区三区在线观看 | 在线观看免费视频日本深夜| 国产麻豆69| 日韩欧美一区视频在线观看| 久久精品国产综合久久久| 18禁黄网站禁片午夜丰满| 电影成人av| 亚洲视频免费观看视频| 黄网站色视频无遮挡免费观看| 欧美国产精品一级二级三级| 久久精品成人免费网站| 在线永久观看黄色视频| 中文亚洲av片在线观看爽 | 精品电影一区二区在线| 亚洲成人手机| 99热国产这里只有精品6| 叶爱在线成人免费视频播放| 男女午夜视频在线观看| 两性午夜刺激爽爽歪歪视频在线观看 | 亚洲色图综合在线观看| 日韩有码中文字幕| 免费高清在线观看日韩| 精品亚洲成a人片在线观看| 香蕉久久夜色| 一级片'在线观看视频| cao死你这个sao货| 国产高清激情床上av| 麻豆乱淫一区二区| 一级毛片女人18水好多| 欧美日韩福利视频一区二区| 久久香蕉国产精品| 99久久人妻综合| 亚洲午夜精品一区,二区,三区| 免费久久久久久久精品成人欧美视频| 亚洲精品美女久久av网站| 9热在线视频观看99| www.熟女人妻精品国产| 日本a在线网址| 国产高清视频在线播放一区| 亚洲色图综合在线观看| 99香蕉大伊视频| 国产av精品麻豆| 妹子高潮喷水视频| 国产激情欧美一区二区| 国产97色在线日韩免费| 久久天躁狠狠躁夜夜2o2o| 欧美黄色片欧美黄色片| 一边摸一边抽搐一进一出视频| 久久ye,这里只有精品| 亚洲人成电影观看| 国产一区二区激情短视频| 午夜免费成人在线视频| 午夜免费鲁丝| 精品国产一区二区久久| 国产一区二区三区在线臀色熟女 | 视频在线观看一区二区三区| avwww免费| 欧美乱色亚洲激情| 日本vs欧美在线观看视频| 中文字幕另类日韩欧美亚洲嫩草| 久久婷婷成人综合色麻豆| 黑人操中国人逼视频| 熟女少妇亚洲综合色aaa.| 黄片大片在线免费观看| 美女高潮到喷水免费观看| 午夜福利视频在线观看免费| 在线观看免费视频日本深夜| 亚洲 欧美一区二区三区| 日本vs欧美在线观看视频| 日本wwww免费看| 最近最新中文字幕大全免费视频| 欧美黄色片欧美黄色片| 黄色a级毛片大全视频| 国产97色在线日韩免费| 国产黄色免费在线视频| 99热只有精品国产| 亚洲美女黄片视频| 窝窝影院91人妻| 国产麻豆69| 在线看a的网站| 午夜免费观看网址| 动漫黄色视频在线观看| 午夜91福利影院| 正在播放国产对白刺激| 黄色片一级片一级黄色片| 亚洲黑人精品在线| 欧美日本中文国产一区发布| 女人高潮潮喷娇喘18禁视频| 国产精品98久久久久久宅男小说| 亚洲精品久久午夜乱码| 大码成人一级视频| 男人操女人黄网站| 国产免费av片在线观看野外av| 久久国产精品影院| 亚洲中文日韩欧美视频| 自拍欧美九色日韩亚洲蝌蚪91| 久久精品人人爽人人爽视色| 丰满的人妻完整版| 国产野战对白在线观看| 国产视频一区二区在线看| 黑人欧美特级aaaaaa片| 夜夜夜夜夜久久久久| 麻豆av在线久日| 国产精品av久久久久免费| 亚洲第一青青草原| 一区二区三区激情视频| 丁香六月欧美| 亚洲精品国产一区二区精华液| 美女扒开内裤让男人捅视频| 日本五十路高清| 婷婷成人精品国产| 国产免费男女视频| 成熟少妇高潮喷水视频| av福利片在线| 欧美日韩乱码在线| 亚洲av成人av| 人人妻人人澡人人爽人人夜夜| 啪啪无遮挡十八禁网站| 桃红色精品国产亚洲av| 免费高清在线观看日韩| 9热在线视频观看99| 免费一级毛片在线播放高清视频 | 日本一区二区免费在线视频| 欧美在线一区亚洲| 国产精品.久久久| 欧美国产精品va在线观看不卡| 欧美久久黑人一区二区| 亚洲一卡2卡3卡4卡5卡精品中文| 亚洲av欧美aⅴ国产| 丝袜美腿诱惑在线| 精品一区二区三区视频在线观看免费 | 午夜福利乱码中文字幕| 丝袜美足系列| 正在播放国产对白刺激| av片东京热男人的天堂| 免费观看a级毛片全部| 亚洲精华国产精华精| 久久国产精品大桥未久av| 午夜福利,免费看| 他把我摸到了高潮在线观看| 久久久精品免费免费高清| 国产日韩欧美亚洲二区| 麻豆成人av在线观看| 亚洲av成人一区二区三| 亚洲 欧美一区二区三区| 久久ye,这里只有精品| 午夜久久久在线观看| 99久久精品国产亚洲精品| 午夜福利在线观看吧| 最近最新中文字幕大全免费视频| 国产三级黄色录像| 中文字幕人妻丝袜一区二区| 精品一区二区三卡| 村上凉子中文字幕在线| 国产亚洲一区二区精品| 免费日韩欧美在线观看| 国产精品欧美亚洲77777| 国产单亲对白刺激| 亚洲熟女精品中文字幕| 无遮挡黄片免费观看| 飞空精品影院首页| 水蜜桃什么品种好| 热99国产精品久久久久久7| 精品久久久久久电影网| 国产精品一区二区在线观看99| 国产精品国产av在线观看| 国产又爽黄色视频| 国产片内射在线| 亚洲第一欧美日韩一区二区三区| 中文字幕人妻丝袜一区二区| 欧美午夜高清在线| 久久久久久久国产电影| 国产精品乱码一区二三区的特点 | 欧美日韩瑟瑟在线播放| 精品高清国产在线一区| 怎么达到女性高潮| av网站在线播放免费| 中出人妻视频一区二区| 久久久精品国产亚洲av高清涩受| 日韩人妻精品一区2区三区| 99国产精品一区二区蜜桃av | 高清视频免费观看一区二区| 男女午夜视频在线观看| 99国产极品粉嫩在线观看| 大型黄色视频在线免费观看| 日韩免费av在线播放| 亚洲熟女毛片儿| 精品少妇一区二区三区视频日本电影| 精品久久久精品久久久| 午夜日韩欧美国产| 国产99久久九九免费精品| 国产淫语在线视频| 亚洲精品中文字幕在线视频| 久久精品亚洲精品国产色婷小说| 一级毛片精品| 色尼玛亚洲综合影院| 成人手机av| 久久久久久久久久久久大奶| 精品久久久久久,| 精品亚洲成国产av| 每晚都被弄得嗷嗷叫到高潮| 久久国产亚洲av麻豆专区| 亚洲精品久久午夜乱码| 国产日韩一区二区三区精品不卡| 久久久久精品国产欧美久久久| 国产精品美女特级片免费视频播放器 | 成人三级做爰电影| 51午夜福利影视在线观看| 国产男女超爽视频在线观看| 国产男女超爽视频在线观看| 亚洲精品国产精品久久久不卡| 99在线人妻在线中文字幕 | 亚洲精品国产精品久久久不卡| 黄色视频,在线免费观看| 91成人精品电影| 日韩成人在线观看一区二区三区| 亚洲国产精品sss在线观看 | svipshipincom国产片| 9191精品国产免费久久| 久久婷婷成人综合色麻豆| 欧美黄色片欧美黄色片| 18禁黄网站禁片午夜丰满| 9色porny在线观看| 国产在线精品亚洲第一网站| 精品人妻在线不人妻| 午夜两性在线视频| 午夜福利在线免费观看网站| 视频区图区小说| 亚洲黑人精品在线| 亚洲一区二区三区欧美精品| 亚洲欧美激情综合另类| 欧美国产精品一级二级三级| 美女福利国产在线| 不卡一级毛片| 国产又爽黄色视频| 男女免费视频国产| 男女下面插进去视频免费观看| 日本vs欧美在线观看视频| 午夜91福利影院| www.自偷自拍.com| 精品国产一区二区三区四区第35| 中文字幕人妻丝袜一区二区| 一区在线观看完整版| 丁香六月欧美| 91老司机精品| 中文字幕av电影在线播放| 午夜福利影视在线免费观看| 成人国产一区最新在线观看| av有码第一页| 欧美日韩视频精品一区| 国产精品久久久久成人av| 欧美国产精品va在线观看不卡| 亚洲精品国产精品久久久不卡| 国产成人欧美在线观看 | 欧美精品啪啪一区二区三区| 宅男免费午夜| 欧美黄色淫秽网站| 身体一侧抽搐| 在线看a的网站| 看免费av毛片| 国产真人三级小视频在线观看| 中文字幕人妻丝袜制服| 黄片播放在线免费| 国产精品久久久av美女十八| 无人区码免费观看不卡| 欧美日韩av久久| 日本a在线网址| 人妻丰满熟妇av一区二区三区 | 天天操日日干夜夜撸| 香蕉久久夜色| 亚洲久久久国产精品| 男人操女人黄网站| www日本在线高清视频| 一二三四社区在线视频社区8| 亚洲第一欧美日韩一区二区三区| 精品电影一区二区在线| 亚洲精品自拍成人| 在线观看舔阴道视频| 国产免费av片在线观看野外av| 两人在一起打扑克的视频| 午夜两性在线视频| 日本a在线网址| 成熟少妇高潮喷水视频| 国产精品免费视频内射| 视频区欧美日本亚洲| 久久久国产成人免费| 国产1区2区3区精品| 国产在线观看jvid| 久久久久久久精品吃奶| 日本撒尿小便嘘嘘汇集6| 亚洲一区中文字幕在线| 欧美激情 高清一区二区三区| 免费人成视频x8x8入口观看| 国产日韩一区二区三区精品不卡| 精品少妇一区二区三区视频日本电影| 久热这里只有精品99| а√天堂www在线а√下载 | 身体一侧抽搐| 国产一区二区激情短视频| 日韩欧美免费精品| 麻豆av在线久日| 国产高清videossex| 飞空精品影院首页| 免费观看人在逋| 亚洲欧洲精品一区二区精品久久久| 一区二区三区激情视频| 久久久久精品人妻al黑| 成人亚洲精品一区在线观看| 啦啦啦在线免费观看视频4| 国产野战对白在线观看| 视频在线观看一区二区三区| 一级毛片精品| 久久国产乱子伦精品免费另类| 丝袜美腿诱惑在线| 色播在线永久视频| 久热这里只有精品99| 91国产中文字幕| 久久久国产一区二区| 黄片播放在线免费| 美女福利国产在线| 国产精品欧美亚洲77777| 巨乳人妻的诱惑在线观看| 久久久久久久国产电影| 久久香蕉国产精品| 两人在一起打扑克的视频| 欧美国产精品va在线观看不卡| 国产精品久久久av美女十八| 深夜精品福利| 如日韩欧美国产精品一区二区三区| 久久国产精品人妻蜜桃| 国产精品免费视频内射| 久久精品国产a三级三级三级| avwww免费| 90打野战视频偷拍视频| 男人操女人黄网站| 精品高清国产在线一区| 丝袜在线中文字幕| 一区福利在线观看| 天堂动漫精品| 成人黄色视频免费在线看| 最新美女视频免费是黄的| 妹子高潮喷水视频| 一本一本久久a久久精品综合妖精| 国产熟女午夜一区二区三区| 淫妇啪啪啪对白视频| av不卡在线播放| 老熟女久久久| 久久久水蜜桃国产精品网| 日韩有码中文字幕| 9色porny在线观看| 妹子高潮喷水视频| 欧美激情久久久久久爽电影 | 亚洲人成电影观看| 日韩有码中文字幕| 久久国产精品影院| 男女之事视频高清在线观看| av国产精品久久久久影院| 精品乱码久久久久久99久播| 精品欧美一区二区三区在线| 婷婷精品国产亚洲av在线 | 在线观看66精品国产| 久久99一区二区三区| 亚洲欧美一区二区三区久久| 欧美激情极品国产一区二区三区| 人人妻人人添人人爽欧美一区卜| 日韩制服丝袜自拍偷拍| 一二三四在线观看免费中文在| 午夜福利一区二区在线看| av片东京热男人的天堂| 国产深夜福利视频在线观看| 无人区码免费观看不卡| 午夜视频精品福利| 国产成人影院久久av| av免费在线观看网站| 亚洲欧美一区二区三区黑人| 国产激情欧美一区二区| 丁香欧美五月| 中亚洲国语对白在线视频| 50天的宝宝边吃奶边哭怎么回事| 午夜视频精品福利| 亚洲精品中文字幕一二三四区| 国产成人免费无遮挡视频| 国产淫语在线视频| 成年人黄色毛片网站| 精品卡一卡二卡四卡免费| av欧美777| 国产免费男女视频| 久久久精品区二区三区| 黄色成人免费大全| 国产成人系列免费观看| 国产一区二区三区在线臀色熟女 | 又黄又爽又免费观看的视频| 美女高潮到喷水免费观看| 老熟女久久久| 精品欧美一区二区三区在线| 黄色毛片三级朝国网站| 亚洲在线自拍视频| 黑人操中国人逼视频| 12—13女人毛片做爰片一| 老汉色av国产亚洲站长工具| 久久天躁狠狠躁夜夜2o2o| 亚洲成a人片在线一区二区| 韩国av一区二区三区四区| 午夜影院日韩av| 日韩视频一区二区在线观看| 国产麻豆69| 亚洲欧美日韩高清在线视频| 99国产极品粉嫩在线观看| 久久久国产精品麻豆| 777米奇影视久久| 无限看片的www在线观看| 日韩制服丝袜自拍偷拍| 老司机影院毛片| 最新在线观看一区二区三区| 99国产精品一区二区三区| 免费少妇av软件| 满18在线观看网站| av片东京热男人的天堂| av电影中文网址| 精品久久久久久,| 精品福利永久在线观看| 国产精品免费大片| 久久国产精品影院| 久久久精品免费免费高清| a在线观看视频网站| 久久久久久久久免费视频了| 亚洲伊人色综图| 中文字幕另类日韩欧美亚洲嫩草| 欧美一级毛片孕妇| 免费日韩欧美在线观看| 国产又色又爽无遮挡免费看| 一边摸一边抽搐一进一小说 | 精品久久蜜臀av无| 国产亚洲精品一区二区www | 日韩免费av在线播放| 成年人免费黄色播放视频| 欧美黄色淫秽网站| 欧美性长视频在线观看| 深夜精品福利| 亚洲人成伊人成综合网2020| 亚洲全国av大片| 丝袜美腿诱惑在线| 午夜成年电影在线免费观看| 国产精品亚洲一级av第二区| 中文字幕人妻丝袜一区二区| 欧美日韩视频精品一区| av国产精品久久久久影院| 亚洲片人在线观看| 欧美日韩视频精品一区| 亚洲午夜理论影院| 午夜福利欧美成人| 91国产中文字幕| 激情在线观看视频在线高清 | 亚洲精品国产一区二区精华液| 久久婷婷成人综合色麻豆| 色精品久久人妻99蜜桃| 国产成+人综合+亚洲专区| 国产xxxxx性猛交| 亚洲黑人精品在线| 日日夜夜操网爽| 久久狼人影院| 女警被强在线播放| 国产精品久久久久成人av| 两个人免费观看高清视频| 后天国语完整版免费观看| 亚洲av片天天在线观看| 国产不卡av网站在线观看| 欧美日韩视频精品一区| 欧美精品啪啪一区二区三区| 亚洲成人国产一区在线观看| 日本vs欧美在线观看视频| 97人妻天天添夜夜摸| 在线天堂中文资源库| 国产精品免费大片| 婷婷精品国产亚洲av在线 | 50天的宝宝边吃奶边哭怎么回事| 免费看a级黄色片| 国产精品 国内视频| 亚洲欧美一区二区三区久久| 热99久久久久精品小说推荐| 两人在一起打扑克的视频| 亚洲精品在线美女| 午夜亚洲福利在线播放| 欧美人与性动交α欧美精品济南到| 韩国av一区二区三区四区| 深夜精品福利| 美女扒开内裤让男人捅视频| 天堂俺去俺来也www色官网| 久久人妻熟女aⅴ| 日日爽夜夜爽网站| 另类亚洲欧美激情| 两人在一起打扑克的视频| 亚洲av成人不卡在线观看播放网| 桃红色精品国产亚洲av| 热re99久久精品国产66热6| 男人的好看免费观看在线视频 | 三级毛片av免费| 日韩制服丝袜自拍偷拍| 两人在一起打扑克的视频| 乱人伦中国视频| 性少妇av在线| 天堂俺去俺来也www色官网| 成人手机av| 老汉色∧v一级毛片| 欧美日韩视频精品一区| 成人av一区二区三区在线看| 香蕉国产在线看| 老汉色∧v一级毛片| 人人妻人人澡人人看| 日本五十路高清| 亚洲精品乱久久久久久| 免费看a级黄色片| 国产男女内射视频| 国产高清激情床上av| 亚洲欧洲精品一区二区精品久久久|