1、補肥不能忽視補硼。由於持續幹旱會使土壤中“硼”的有效性大大降低,作物根係無法吸收,進而導致油菜植株缺硼,花而不實,嚴重減產,因此對受旱油菜在抓好抗旱、zhuifeijichushang,haiyaotebiezhuyibushipengfei,jishizaibozhonghuoyizaishiyijingdishiguopengfeideyoucaitiankuai,huaqirengranxuyaoyemianpenpeng。tongshihaiyaopenshizhuangjingling,tigaogaishanzhiwutineiduigeleijixuyuansudexishougongneng,zengqiangzhitideyingyangshengchangjineng。
2、qiwenhuishengqiemowangjifanghan。dadihuichunqiwenhuisheng,youcaidatianjijiangfanqinghuifushengchang。danqihouhenbuwending,yidanlengkongqituxi,jiuhuichanshengdonghai。yinci,yaogeidatianbianpenxingaozhimo800倍液,在保墒保肥防病菌侵襲的同時,重在防寒保溫,以免災害。
3、適時抑主梢狂長促開花結果。返青拔節伊始,就要及時噴施促花王3號,可促使營養生長向生殖生長機能轉化,促花芽分化,抑枝梢狂長,在初花蕾期、幼莢期和籽粒飽滿期要噴施菜果壯蒂靈,可增強花粉受精質量,循環坐果率強,促進果實發育,無畸形、無空殼、無秕粒,有效提高增產率。
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