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干旱是限制旱地小麦产量提高的主要障碍,如何在干旱条件下,采取各种抗旱栽培技术,是旱地小麦稳产的主要途径.今年偃师市12万亩旱地,播种前后遇到了百年不遇的长达168天无降透雨的罕见干旱气候,小麦生育期间,土壤墒情较差,0～50cm土层土壤含水率均低于上年同期,但在大灾之年,仍取得了平均亩产117.6kg的好收成,这是我们大力推广抗旱栽培措施的结果.为此,我们做了大量的田间调查和室内考种,并加以研究分析,特总结如下:
Drought is the main obstacle to the improvement of wheat yield in dryland and how to adopt various drought-resistant cultivation techniques under dry conditions is the main way to stabilize the wheat in dry land. This year, Yanshi City, 12 million mu of dry land, encountered a rare 168 During the wheat growing period, soil moisture was rather poor. Soil moisture in 0 ~ 50cm soil layer was lower than that in the same period of previous year. However, in the year of catastrophe, the average yield was still 117.6kg This is the result of our vigorous promotion of drought-resistant cultivation measures.Therefore, we have done lots of field investigation and indoor test, and have done some research and analysis, which is summarized as follows: