一九八六年我区水稻总产达8.5亿斤,虽比一九八五年增加1200万斤,但是单产却下降为1104斤,比一九八五年下降17斤。现对导致去年水稻单产下降的气候条件分析如下: 一、对全生育期气候条件的分析据灌区石嘴山市、平罗县、银川市、永 In 1986, the total output of paddy rice in our region reached 850 million kilograms. Although it increased by 12 million kilograms over 1985, the yield per head dropped to 1104 kilograms, down 17 pounds over 1985. The climatic conditions that led to a drop in rice yields last year are as follows: 1. Analysis of climatic conditions during the whole growth period According to the statistics of Shizuishan, Pingluo, Yinchuan and Yong