日本69视频

    測(ce)(ce)土(tu)配方施(shi)肥技(ji)術(shu)是(shi)(shi)以麥田土(tu)壤測(ce)(ce)試和肥料(liao)(liao)田間試驗為基礎的(de)一(yi)項(xiang)肥料(liao)(liao)運籌技(ji)術(shu)。主(zhu)要是(shi)(shi)根據實現目標產量的(de)(de)總需肥(fei)(fei)量、不(bu)同生育時期(qi)的(de)(de)需肥(fei)(fei)規律和(he)肥(fei)(fei)料(liao)效應，在合理施(shi)用(yong)有機肥(fei)(fei)的(de)(de)基(ji)礎(chu)上(shang)，提出肥(fei)(fei)料(liao)（主要(yao)是(shi)氮、磷、鉀肥(fei)(fei)）的(de)(de)施(shi)用(yong)量、施(shi)肥(fei)(fei)時期(qi)和(he)施(shi)用(yong)方法。適用(yong)于(yu)全國(guo)各麥區。 

    根(gen)據生產(chan)(chan)(chan)經驗不同地(di)力水(shui)(shui)平(ping)的適宜施(shi)(shi)肥量參考值為：產(chan)(chan)(chan)量水(shui)(shui)平(ping)在(zai)每(mei)(mei)(mei)畝200~300公(gong)(gong)斤的低(di)產(chan)(chan)(chan)田(tian)，每(mei)(mei)(mei)畝施(shi)(shi)用純(chun)氮(dan)6~10公(gong)(gong)斤，磷(lin)3~5公(gong)(gong)斤，鉀(jia)2~4公(gong)(gong)斤。產(chan)(chan)(chan)量水(shui)(shui)平(ping)在(zai)每(mei)(mei)(mei)畝300~400公(gong)(gong)斤的中產(chan)(chan)(chan)田(tian)，每(mei)(mei)(mei)畝施(shi)(shi)用純(chun)氮(dan)10~12公(gong)(gong)斤，磷(lin)4~6公(gong)(gong)斤，鉀(jia)4~6公(gong)(gong)斤。產(chan)(chan)(chan)量水(shui)(shui)平(ping)在(zai)每(mei)(mei)(mei)畝400~500公(gong)(gong)斤的高(gao)產(chan)(chan)(chan)田(tian)，每(mei)(mei)(mei)畝施(shi)(shi)用純(chun)氮(dan)12~14公(gong)(gong)斤，磷(lin)6~7公(gong)(gong)斤，鉀(jia)5~6公(gong)(gong)斤。產(chan)(chan)(chan)量水(shui)(shui)平(ping)在(zai)每(mei)(mei)(mei)畝500~600公(gong)(gong)斤的超高(gao)產(chan)(chan)(chan)田(tian)，每(mei)(mei)(mei)畝施(shi)(shi)用純(chun)氮(dan)14~16公(gong)(gong)斤，磷(lin)7~8公(gong)(gong)斤，鉀(jia)6~8公(gong)(gong)斤。 

    氮肥(fei)(fei)后移高(gao)(gao)產(chan)(chan)優(you)質栽(zai)培技(ji)術適(shi)宜于(yu)中(zhong)(zhong)產(chan)(chan)麥(mai)(mai)(mai)(mai)田(tian)和(he)(he)高(gao)(gao)產(chan)(chan)麥(mai)(mai)(mai)(mai)田(tian)，是促(cu)進(jin)小(xiao)(xiao)(xiao)麥(mai)(mai)(mai)(mai)生長中(zhong)(zhong)期(qi)小(xiao)(xiao)(xiao)花發(fa)育提(ti)高(gao)(gao)每穗粒數，延緩小(xiao)(xiao)(xiao)麥(mai)(mai)(mai)(mai)生長后期(qi)衰老增加粒重，改(gai)善強筋(jin)和(he)(he)中(zhong)(zhong)筋(jin)小(xiao)(xiao)(xiao)麥(mai)(mai)(mai)(mai)籽粒品(pin)質的(de)(de)栽(zai)培技(ji)術。技(ji)術要點：將中(zhong)(zhong)產(chan)(chan)麥(mai)(mai)(mai)(mai)田(tian)和(he)(he)高(gao)(gao)產(chan)(chan)麥(mai)(mai)(mai)(mai)田(tian)一次性底(di)施(shi)氮肥(fei)(fei)改(gai)為底(di)肥(fei)(fei)與追(zhui)肥(fei)(fei)相結合(he)，中(zhong)(zhong)產(chan)(chan)田(tian)底(di)氮肥(fei)(fei)占(zhan)總追(zhui)肥(fei)(fei)量(liang)的(de)(de)60%，起身期(qi)追(zhui)施(shi)40%；高(gao)(gao)產(chan)(chan)田(tian)底(di)氮肥(fei)(fei)占(zhan)總追(zhui)肥(fei)(fei)量(liang)的(de)(de)50%~60%，拔節期(qi)追(zhui)施(shi)40%~50%。主要適(shi)用于(yu)北緯35~38度黃淮冬(dong)麥(mai)(mai)(mai)(mai)區(qu)和(he)(he)北部冬(dong)麥(mai)(mai)(mai)(mai)區(qu)，包括(kuo)河南、山東、河北、山西(xi)、陜(shan)西(xi)、新疆等地有水澆(jiao)條件和(he)(he)肥(fei)(fei)力較好的(de)(de)強筋(jin)小(xiao)(xiao)(xiao)麥(mai)(mai)(mai)(mai)、中(zhong)(zhong)筋(jin)小(xiao)(xiao)(xiao)麥(mai)(mai)(mai)(mai)田(tian)。