南阳地处南北方过渡地带 ,三面环山 ,气候独特 ,常年植棉 1 7万公顷 ,是河南省产棉大区 ,区内棉花多分布于砂姜黑土地 ,土质瘠薄 ,历史低产。近年来 ,我们针对南阳的特点 ,大力推广先进实用增产技术 ,使全市棉花生产水平稳步提高 ,平均单产由 80年代的每公顷 657kg提高到目前的 Nanyang is located in the transition zone between north and south, surrounded by mountains on three sides, unique climate, perennial plant 170000 hectares of cotton, is a large cotton producing area in Henan Province, the area cotton are distributed in the sand ginger black soil, infertile soil, low yield. In recent years, we focused on the characteristics of Nanyang, vigorously promote advanced practical production technology, the city’s cotton production levels steadily increased, the average yield from 657kg per hectare in the 1980s increased to the current