玛纳斯县种植水稻,由于生长期的限制,往往不能充分成熟,甚至有的完全不成熟.这是当前大面积增产的主要问题之一.为此,我们1961年对这一问题进行了调查研究,其初步结果如下:一、促进早熟的途径.玛纳斯县水稻的实际有效生育期,自播种后灌水的日期起,到9月25日止,只95—105天.9月25日以后,由于温度急剧下降.植株的生育停滞不前,因此表现以下两种情况:1.一部分植株不成熟.种子全部呈半饱状态和空粃状态.据1961年的调查,大田中不成 Manas County, rice cultivation, due to the limitations of the growing period, often not fully mature, or even completely immature, which is currently one of the major problems of large-scale production increase.To this end, we conducted a survey on this issue in 1961 Research, the initial results are as follows: First, to promote the precocious path Manas County actual effective growth period of rice, since the date of sowing after the irrigation, until September 25, only 95-105 days. September 25 Later, due to a sharp decline in temperature, plant growth stagnated, so the performance of the following two situations: 1 part of the immature plants, seeds were all half full and empty state.According to the 1961 survey, the field is not