小麦播密或播稀了咋办

• 作 者: 苇芬
• 出 处: 农村科学实验
• 发表日期: 1998年04期
• 关键词: 横耙 斜耙 基本苗数 播种量 成穗率 植株徒长 灌水次数 分孽 补播 抑制作用

1、播密麦苗出齐后发现播种量大了,基本苗数过多,可在苗期进行人力手工疏苗,也可用钉齿耙进行一次或多次的斜耙或横耙,以达到疏苗目的。在管理上,早期要控制肥水的供给,以免植株徒长,发生倒伏。中后期要根据植株的长相,巧用孕穗水、杨花水、灌浆水,以保证形成大穗,增粒增重。

1, sowing wheat seedlings found after sowing a large quantity, the basic number of seedlings too much seedlings can be manual sparse seedlings, but also can be used to rake rake one or more times rake or rake to achieve Shu Miao purpose. In the management, we should control the supply of fertilizer and water in the early stage so as to prevent plant growth and lodging. In the latter part of the plant according to the appearance, clever use booting water, Yang Hua water, grouting water, in order to ensure the formation of large spike, grain weight gain.