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北疆生长季节仅140—150天,棉花生产常因灌水不当造成晚熟,降低霜前花百分率。如能根据地区特点,采用恰当的灌溉方法,则可以在一定程度上克服这个缺点。我们于一九六四年进行了头末两水隔沟灌、头水隔沟、末水隔沟和全期各水沟沟灌等不同方式的灌溉试验,探索它们在生产上的作用,结果如下: 无论总产与霜前花产量,都以头末两水隔沟灌的最高,平均亩产为214.4公斤,霜前花产量140公斤,分别比头水隔沟灌、末水隔沟灌和各水沟沟灌的高出17.7、31.2和61.0公斤,霜前花百分率也相应高出3.3％、3.4％和10.2％。
The growing season of northern Xinjiang is only 140-150 days. Cotton production often causes late maturity due to improper irrigation, reducing the percentage of flowers before frost. If according to the characteristics of the region, the appropriate irrigation methods, you can overcome this shortcoming to some extent. In 1964, we carried out irrigation experiments in different ways such as furrow irrigation, furrow irrigation at the head and tail, furrow irrigation at the end of the valley, and ditches irrigation at the end of the year to explore their role in production. The results are as follows: Regardless of the total output and frost before the flower production, both the first two ends of the highest irrigation ditch, the average yield of 214.4 kilograms, 140 kilograms of flowers before frost, respectively, than the head and ditch irrigation, irrigation at the end of the ditch and irrigation Ditch ditch irrigation Higher than the 17.7, 31.2 and 61.0 kg, respectively, before the frost percentage also higher than the 3.3%, 3.4% and 10.2%.