江汉平原棉花高产栽培的障碍因子及对策

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。

Impediments in High Yield Cotton Cultivation in Hubei Plain and Countermeasures

The application and extension of insect-resistant hybrid cotton has greatly increased the unit yield and economic benefits of the cotton farmers, yet there shows a tendency of increasingly lesser increase margin in cotton yield due to incompatibility of variety and planting practice. In Hubei plains, tillage system, fertilizing plan, management measures as well as the inborn defects of the insect-resistant hybrid cotton are main factors leading to the above-mentioned circumstances. For a high cotton yield at present, variety selection is the basis, deep tillage and due fertilizer is the guarantee, and the comprehensive control of diseases and insects is the necessity.