一、现(xian)行(xing)绿肥农作物成长基本特征
去年绿(lv)肥作物播种(zhong)较(jiao)往(wang)年偏晚,加上秋播干旱少雨(yu),造(zao)成(cheng)绿(lv)肥作物出(chu)苗(miao)迟(chi)(chi),出(chu)苗(miao)率偏低,生(sheng)(sheng)育进程相应(ying)偏迟(chi)(chi)。虽然越冬期(qi)积温较(jiao)高,绿(lv)肥得到部分补偿(chang)性(xing)生(sheng)(sheng)长(zhang)(zhang),但仍存🔯在苗(miao)小、苗(miao)弱等问题。当(dang)前,气(qi)温逐(zhu)渐回暖,正是苗(miao)情转化升(sheng)级,扭(niu)转不利态势(shi)的最佳时机(ji)。自“惊蛰(zhe)”节(jie)气(qi)以来,绿(lv)肥长(zhang)(zhang)势(shi)已(yi)有改善。蚕豆总苗(miao)数为(wei)(wei)16.1万(wan)(wan)/亩(mu),较(jiao)上期(qi)“雨(yu)水(shui)(shui)”节(jie)气(qi)13.4万(wan)(wan)/亩(mu)增长(zhang)(zhang)了2.7万(wan)(wan),株高19.8cm,较(jiao)上期(qi)“雨(yu)水(shui)(shui)”节(jie)气(qi)16.2cm增长(zhang)(zhang)了3.6cm;紫云(yun)英总苗(miao)数为(wei)(wei)72.1万(wan)(wan)/亩(mu),较(jiao)上期(qi)“雨(yu)水(shui)(shui)”节(jie)气(qi)51.4万(wan)(wan)/亩(mu)增长(zhang)(zhang)了20.7万(wan)(wan),株高14.0cm,较(jiao)上期(qi)“雨(yu)水(shui)(shui)”节(jie)气(qi)11.0cm增长(zhang)(zhang)了3.0cm。
二、目前田间地头(tou)方法(fa)技术应(ying)用意见(jian)与建(jian)议
争对现(xian)如(ru)今(jin)绿肥(fei)粮(liang)食(shi)作物(wu)苗情优(you)缺点(dian),现(xian)如(ru)꧙今(jin)冬春季田管工作要侧重点(dian)加强领导沟系除去(qu),农作物(wu)肥(fei)料ꦰ运筹,促春发,提(ti)高了绿肥(fei)菌物(wu)学总(zong)产(chan)量等(deng)部分做好:
1.抓好沟(gou)系(xi)(xi)配套工程。目前为止绿肥田间仍是没有开沟(g𒉰ou)的,要按时补、来开沟(gou)系(xi)(xi);对沟(gou)系(xi)(xi)不(bu)畅、有内(nei)的积水的农田按时输通。
2.要因苗补肥促(cu)长(zhang)。要紧紧抓(zhua)住(zhu)近些(xie)年气候气温回升(sheng)、田间地头墒情舒适的有助于前应,立刻(ke)看苗追施(shi)合适的各类农产(♋chan)品,以力促(cu)绿(lv)肥成(cheng)长(zhang),以小(xiao)(xiao)肥养(yang)大肥。经典对白(bai)地白(bai)种(zhong)或受众偏小(xiao)(xiao)的田园合适的追施(shi)春(chun)肥。