一、到现阶段绿肥大(da)田作物繁(fan)殖优(you)点(dian)
去(qu)年绿(lv)(lv)肥(fei)作物(wu)播种较(jiao)(jiao)(jiao)往(wang)年偏(pian)晚(wan),加上(shang)秋播干旱少雨(yu),造(zao)成绿(lv)(lv)肥(fei)作物(wu)出苗迟,出苗率偏(pian)低,生(sheng)育进(jin)程相(xiang)应偏(pian)迟。虽然越冬期积温较(jiao)(jiao)(jiao)高,绿(lv)(lv)肥(fei)得到部分补偿(chang)性生(sheng)长(zhang)(zhang),但仍存在苗小、苗弱等问题。当前(qian),气(qi)温逐渐回(hui)暖,正(zheng)是苗情转化升级,扭(niu)转不(bu)利态势的最佳时机(ji)。自“惊蛰”节(jie)气(qi)以(yi)来(lai),绿(lv)(lv)肥(fei)长(zhang)(zhang)势已有改善(shan)。蚕豆总(zong)苗数(shu)为16.1万(wan)(wan)(wan)(wan)/亩(mu),较(jiao)(jiao)ไ(jiao)上(shang)期“雨(yu)水(shui)(shui)”节(jie)气(qi)13.4万(wan)(wan)(wan)(wan)/亩(mu)增(zeng)长(zhang)(zhang)了(le)2.7万(wan)(wan)(wan)(wan),株高19.8cm,较(jiao)(jiao)(jiao)上(shang)期“雨(yu)水(shui)(shui)”节(jie)气(qi)16.2cm增(zeng)长(zhang)(zhang)了(le)3.6cm;紫云英总(zong)苗数(shu)为72.1万(wan)(wan)(wan)(wan)/亩(mu),较(jiao)(jiao)(jiao)上(shang)期“雨(yu)水(shui)(shui)”节(jie)气(qi)51.4万(wan)(wan)(wan)(wan)/亩(mu)增(zeng)长(zhang)(zhang)了(le)20.7万(wan)(wan)(wan)(wan),株高14.0cm,较(jiao)(jiao)(jiao)上(shang)期“雨(yu)水(shui)(shui)”节(jie)气(qi)11.0cm增(zeng)长(zhang)(zhang)了(le)3.0cm。
二(er)、之前田间地头治理高技术(shu)看法
而对(dui)当今(jin)绿肥(fei)大(da)田作物(wu)苗情的(de)特点,当今(jin)春(chun)夏季田管工作要关(guan)键(jian)性(xing)加强沟系(xi)除(chu)去,水溶肥(fei)运筹,促春(chun)发,的(de)提升绿肥(fei)菌(jun)物(wu)学销ꦦ(xiao)售量等(deng)的(de)方面(mian)实行(xing):
1.紧抓沟(gou)系(xi)(xi)配套设施。阶段绿(lv)肥田(tian)间仍沒♋(mei)有(you)开沟(gou)的,要(yao)直接(jie)补、做好沟(gou)系(xi)(xi);对(dui)沟(gou)系(xi)(xi)不(bu)畅、有(you)雨水的农田(tian)直接(jie)疏通下水道。
2.要(yao)因苗(miao)补肥促(cu)长。要(yao)要(yao)把握住(zhu)现如今(jin)室(shi)内温度(du)回温、田(tian)间(jian)地头(tou)墒情最合(he)适的有(you)(you)益方(fang)式(shi),及(ji)早看苗(miao)追(zhui)施合(he)适的复(fu)合(he)肥料,以(𓄧yi)(yi)有(you)(you)利于促(cu)进绿肥出现,以(yi)(yi)小(xiao)♍肥养大(da)肥。对话地白种(zhong)或(huo)群偏(pian)小(xiao)的农田(tian)合(he)适的追(zhui)施春肥。