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抗虫杂交棉的推广与应用,极大地提高了棉农的植棉单产与效益。然而,近年由于良种良法不配套,棉花单产增幅日趋下滑。就江汉平原而言,耕作制度、施肥方案、管理措施以及抗虫杂交棉自身的缺陷是造成棉花单产增幅减缓的主要因素。现阶段,棉花夺取高产,品种选择是基础,深耕重耙、测土配方是保障,精细管理、综防病虫是夺取棉花高产的必要条件。
The popularization and application of insect-resistant hybrid cotton has greatly improved cotton yield and benefit of cotton farmers. However, in recent years, due to the good law of good seeds is not complete, cotton yield growth is declining. In terms of the Jianghan Plain, the main factors that have contributed to the slowdown of the increase in cotton yield were the tillage system, the fertilization program, the management measures and the defects of the insect-resistant hybrid cotton itself. At this stage, cotton seizes high yield and variety selection is the basis. Deep-harrowing heavy harrow, soil testing and formulating is the guarantee, fine management and comprehensive prevention of pests and diseases are the necessary conditions to seize the high yield of cotton.