【作者】 张永红； 葛徽衍； 贾金海； 李秀琳；

【Author】 ZHANG Yong-hong GE Hui-yan JIA JIN-hai LI Xiu-lin (Meteorological Bureau of Weinan City,Weinan 714000,China)

【机构】 陕西省渭南市气象局；

【摘要】 采用关中东部1971-2000年30a 棉花生长季节4-10月的降水资料,对历史上关中东部影响范围最大、强度最强的1997年和 1983年棉花产量及发育状况进行分析。结果表明,特早年份,棉花产量整体呈减产趋势,棉花普遍早衰,坐桃难、脱落多,且水旱地差异显著;特涝年份,棉花总体上是减产的,涝年导致棉田高湿、寡照,铃病易于流行,棉桃霉烂、脱落、僵瓣增多、铃重降低,从而影响产量和品质。据此提出了相应的对策建议。更多还原

【Abstract】 Cotton yield and growth dynamics in extremely drought year (1997)and flood year (1983)were analyzed based on long-term ( 1971- 2000)precipitation records in cotton growth season ( April-October)in east Guanzhong area,Shaanxi Province. Results showed that cotton yields decreased obviously in extreme drought year as well as in extreme flood year. In drought year,premature senility occurred because of water short- age. In extreme flood year,cotton diseases and insect pests was heavy caused by high humidity and less sunlight. Suggestions on cotton planting were put forward with the respect of abnormal climate influences on cotton growth.更多还原