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麦后趸棉夺丰产的根据是;1.麦后栽棉,小麦可满幅播种,提高土地利用率30—40%,又可减少麦行操作,使麦苗少受损失。2.育趸苗棉花苗期面积小,便于集中管理保证壮苗,移栽后,易于保证密度,壮茁早发。3。育苗移栽便于麦收后整地施肥,避免土壤板结和通气不良,从而有利于棉孔扎根生长。4.由于前期趸棉集中管理,能减少用药次数及用药量。麦后移栽可避免第一代红铃虫和第一、二代棉铃虫为害。但是,由于趸苗生育期延迟,给棉花高产造成困难,必须克服这一困难。为此,我们在试验中采用了下述作法:
After the wheat bargain-hunting rich base is; 1 wheat after planting cotton, wheat can be sown in full swing, improve land use 30-40%, but also reduce the wheat line operation, the wheat seedlings suffer little damage. 2. Fertile seedlings cotton seedling area is small, easy to centralized management to ensure strong seedlings, transplanting, easy to ensure density, Zhuang Zhuo early. 3. Seedling transplanting is convenient for wheat harvesting and land preparation and fertilization to avoid soil compaction and poor ventilation, which is good for cotton root growth. 4. As a result of pre-centralized cotton barrels, can reduce the number of medication and dosage. Transplanting wheat to avoid the first generation of pink bollworm and the first and second generations of cotton bollworm damage. However, due to the delay of seedling emergence period, causing difficulties for high yield of cotton, we must overcome this difficulty. To this end, we have adopted the following practices in our experiments: