一、如今绿肥大田(tian)作物种植的特点
去年绿肥(fei)作物播种较(jiao)(jiao)往年偏晚,加上(shang)秋播干(gan)旱少雨(yu),造成(cheng)绿肥(fei)作物出苗(miao)迟(chi),出苗(miao)率偏低,生育进程相应偏迟(chi)。虽(sui)然越冬期(qi)(qi)(qi)(qi)积温较(jiao)(jiao)高,绿肥(fei)得到部(bu)分(fen)补偿性生长,但仍(reng)存在苗(miao)小、苗(miao)弱等问题。当前,气(qi)(qi)温逐(zhu)渐回(hui)暖,正是(shi)苗(miao)情转化升(sheng)级(ji),扭转不(bu)利态势(shi)的最佳时机(ji)。自“惊蛰”节气(qi)(qi)以来,绿肥(fei)长势(shi)已(yi)有改善(shan)。蚕豆总(zong)苗(miao)数为(wei)(wei)16.1万(wan)/亩,较(jiao)(jiao)上(shang)期(qi)(qi)(qi)(qi)“雨(yu)水”节气(qi)(qi)13.4万(wan)/亩增(zeng)(zeng)(zeng)长了(le)(le)2.7万(wan),株(zhu)高19.8cm,较(jiao)(jiao)上(shang)期(qi)(qi)(qi)(qi)“雨(yu)水”节气(qi)(qi)16.2cm增(zeng)(zeng)(zeng)长了(le)(le)3.6cm;紫云英总(zong)苗(miao)数为(wei)(wei)7🍰2.1万(wan)/亩,较(jiao)(jiao)上(shang)期(qi)(qi)(qi)(qi)“雨(yu)水”节气(qi)(qi)51.4万(wan)/亩增(zeng)(zeng)(zeng)长了(le)(le)20.7万(wan),株(zhu)高14.0cm,较(jiao)(jiao)上(shang)期(qi)(qi)(qi)(qi)“雨(yu)水”节气(qi)(qi)11.0cm增(zeng)(zeng)(zeng)长了(le)(le)3.0cm。
二(er)、某个田埂服(fu)务管理高(gao)技(ji)术意见(jian)和建议
针对性现(xian)今绿(lv)肥(fei)植物(wu)苗情特性,现(xian)今夏(xia)季田管工作要关(guan)键点落实沟系清洁,磷(lin)肥(fei)运(yun)筹,促春发,从而提高绿൲(lv)肥(fei)生物(wu)体学时产等这方面(mian)开始:
1.紧(jin)抓(zhua)沟系(xi)(xi)搭配。到目前为止绿肥田(tian)间仍未开沟的,要不(bu)能补、来开沟系(xi)(xi);对沟系(xi)(xi)不(b🏅u)畅、有渗ꦫ(shen)漏(lou)的田(tian)园不(bu)能蔬通。
2.要因苗(miao)补肥(fei)(fei)促长。要要把握(wo♐)住现重庆气温气温回升、田间地(di)头墒情合适(shi)(shi)的有帮助时应,立(li)即看苗(miao)追施(shi)(shi)不(bu)过要适(shi)(shi)化学,以带动(dong)绿肥(fei)(fei)🧔成长,以小肥(fei)(fei)养大肥(fei)(fei)。对话地(di)白种(zhong)或团体偏小的田园(yuan)不(bu)过要适(shi)(shi)追施(shi)(shi)春肥(fei)(fei)。