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小麥抗濕應變播種管理技術意見

日期:2022-07-22  點擊:- 

  (一(yi))搶排(pai)積(ji)(ji)水(shui)。對(dui)(dui)田間積(ji)(ji)水(shui)嚴重、短時無法排(pai)水(shui)的地(di)塊(kuai)(kuai),動員各方(fang)力(li)量,抓緊挖(wa)溝通渠(qu)(qu),有(you)條(tiao)件(jian)的地(di)方(fang)組(zu)織機械抽(chou)水(shui),全力(li)排(pai)除田間積(ji)(ji)水(shui)。對(dui)(dui)一(yi)般積(ji)(ji)水(shui)地(di)塊(kuai)(kuai),盡(jin)快(kuai)疏通溝渠(qu)(qu)排(pai)水(shui),開挖(wa)深(shen)(shen)溝瀝水(shui)。對(dui)(dui)土(tu)壤濕度過大地(di)塊(kuai)(kuai),適時深(shen)(shen)松散墑(di),瀝出耕層(ceng)滯(zhi)水(shui),為農機盡(jin)快(kuai)進地(di)創造條(tiao)件(jian)。

  (二)搶(qiang)收(shou)(shou)(shou)騰(teng)茬。對(dui)墑情適宜的地塊(kuai),充(chong)分發揮農機(ji)合作社、機(ji)耕(geng)服務隊(dui)的作用,加快機(ji)收(shou)(shou)(shou)進(jin)度(du),提高機(ji)收(shou)(shou)(shou)質(zhi)量。對(dui)土(tu)壤濕(shi)度(du)偏大、機(ji)械能夠(gou)進(jin)田的地塊(kuai),搶(qiang)抓晴好天(tian)氣,調集(ji)履帶式(shi)收(shou)(shou)(shou)割機(ji)或改進(jin)的適宜機(ji)械搶(qiang)時(shi)收(shou)(shou)(shou)獲。對(dui)機(ji)械無法(fa)進(jin)田的地塊(kuai),組織動員人工收(shou)(shou)(shou)獲,確(que)保應收(shou)(shou)(shou)盡收(shou)(shou)(shou)早(zao)收(shou)(shou)(shou)快收(shou)(shou)(shou)。

  (三(san))搶時播(bo)(bo)(bo)種(zhong)(zhong)(zhong)。在寧(ning)早勿晚(wan)、搶抓農時的前提下,堅(jian)(jian)持(chi)(chi)播(bo)(bo)(bo)期(qi)(qi)服(fu)從墑情,當土壤(rang)相對含水量達70%80%時播(bo)(bo)(bo)種(zhong)(zhong)(zhong),切實做到適(shi)(shi)墑播(bo)(bo)(bo)種(zhong)(zhong)(zhong);堅(jian)(jian)持(chi)(chi)播(bo)(bo)(bo)期(qi)(qi)服(fu)從播(bo)(bo)(bo)種(zhong)(zhong)(zhong)質(zhi)量,努(nu)力做到精(jing)(jing)細整地(di)(di)和精(jing)(jing)量播(bo)(bo)(bo)種(zhong)(zhong)(zhong),確保苗(miao)(miao)(miao)齊苗(miao)(miao)(miao)勻苗(miao)(miao)(miao)壯;堅(jian)(jian)持(chi)(chi)播(bo)(bo)(bo)量服(fu)從播(bo)(bo)(bo)期(qi)(qi),根據播(bo)(bo)(bo)期(qi)(qi)確定(ding)基本苗(miao)(miao)(miao),做到早播(bo)(bo)(bo)少播(bo)(bo)(bo)、晚(wan)播(bo)(bo)(bo)多播(bo)(bo)(bo),著力構建(jian)合(he)理群體(ti)。對墑情適(shi)(shi)宜地(di)(di)塊,強(qiang)化精(jing)(jing)細整地(di)(di),千(qian)方百(bai)計擴大(da)適(shi)(shi)期(qi)(qi)適(shi)(shi)墑播(bo)(bo)(bo)種(zhong)(zhong)(zhong)比例,確保種(zhong)(zhong)(zhong)在適(shi)(shi)播(bo)(bo)(bo)期(qi)(qi)。對田間(jian)積水、土壤(rang)濕度過大(da)、短期(qi)(qi)無(wu)法散墑整地(di)(di)的地(di)(di)塊,堅(jian)(jian)持(chi)(chi)四補一促(cu)的晚(wan)播(bo)(bo)(bo)小麥應變技術(shu),選用早熟品(pin)種(zhong)(zhong)(zhong)、以(yi)種(zhong)(zhong)(zhong)補晚(wan),提高整地(di)(di)質(zhi)量、以(yi)好補晚(wan),適(shi)(shi)當增加播(bo)(bo)(bo)量、以(yi)密補晚(wan),科學增施(shi)肥料(liao)、以(yi)肥補晚(wan),加強(qiang)田間(jian)管(guan)理、一促(cu)到底。

  (四)早抓田管。部分地(di)區土(tu)壤(rang)(rang)過濕,整(zheng)地(di)播(bo)種質量難以(yi)保證,同時播(bo)期明顯(xian)拉長,容易(yi)導致小麥苗情(qing)復雜,加大田間管理難度。要立足(zu)管早管好(hao),加強冬前田間管理。對(dui)土(tu)壤(rang)(rang)墑(di)(di)情(qing)適宜的地(di)塊,做好(hao)冬季鎮(zhen)壓,壓實土(tu)壤(rang)(rang),保證墑(di)(di)情(qing),防(fang)止凍害,預防(fang)倒伏。對(dui)苗情(qing)偏弱的地(di)塊,結合降雨(yu)和澆水,及時施(shi)肥,促弱轉壯。對(dui)土(tu)壤(rang)(rang)墑(di)(di)情(qing)變(bian)差(cha)的地(di)塊,及時澆好(hao)越冬水,保苗安全越冬。

  (五)早防病(bing)(bing)蟲(chong)。由于主產區(qu)大部分地區(qu)土壤濕度較大,增加(jia)了病(bing)(bing)蟲(chong)草(cao)害發生的(de)風險(xian)。堅(jian)持關口前移、防在前面,針對(dui)當地主要(yao)病(bing)(bing)蟲(chong)害,科(ke)學選用藥(yao)(yao)劑(ji),做好種(zhong)子包衣或(huo)藥(yao)(yao)劑(ji)拌種(zhong),減輕小麥苗(miao)期病(bing)(bing)蟲(chong)害發生基數。對(dui)小麥條(tiao)銹(xiu)病(bing)(bing),堅(jian)持帶藥(yao)(yao)偵查、發現一(yi)點、控制一(yi)片的(de)策略(lve),力爭早發現早防控。對(dui)小麥草(cao)害,堅(jian)持春草(cao)秋治,在氣溫適合時,選用對(dui)路藥(yao)(yao)劑(ji),抓緊(jin)開展化學除(chu)草(cao)。


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