秸秆覆盖与深松垄作对土壤水分变化的影响

发布时间：2018-01-26 04:16

本文关键词： 玉米双因素分析贮水量耗水量　出处：《节水灌溉》2017年11期 　论文类型：期刊论文

【摘要】：试验通过将传统垄作秸秆覆盖(M_1)、传统垄作不覆盖(M_2)、深松垄作不覆盖处理(M_3)各生育期土壤含水率,以及灌溉后连续三日土壤含水率进行对比,旨在得出不同处理对于土壤贮水量、耗水量以及土壤水分变化过程的影响。试验结果表明:对于全生育期的平均土壤含水率,M_1M_2M_3;当土壤水分较大时,土壤水分吸收情况M_3M_2M_1;对于保水效果,M_1M_2M_3;秸秆覆盖和深松处理都会对试验结果造成显著性差异,且M_1更显著。建议采用垄作、秸秆覆盖与深松处理相结合的方式来进行玉米种植。
[Abstract]:In the experiment, the soil moisture content in each growth period was covered by traditional ridge straw mulching, traditional ridge cropping without covering M _ 2 / M _ (2) and deep pine ridge without mulching treatment (M _ 3). And the comparison of soil moisture content in 3rd after irrigation was carried out in order to obtain different treatments for soil water storage. Effects of water consumption and soil moisture change process. The results showed that the average soil moisture content of the whole growth period was M1M2M _ 3; When the soil moisture is larger, the soil moisture absorption situation M3M2Ms1; For the water retention effect M1M _ S _ 2M _ 3s _ s _ _ _; Straw mulching and deep loosening treatment would cause significant difference in the results of the experiment, and M1 was more significant. It was suggested that the combination of ridge cropping, straw mulching and deep loosening treatment should be used for maize planting.
【作者单位】：黑龙江省水利科学研究院;
【基金】：国家科技支撑计划项目(2014BAD12B01)
【分类号】：S152.7
【正文快照】： 玉米是世界三大作物之一,而黑龙江省玉米播种面积所占比重超过农作物总面积的50%。黑龙江属温带大陆性季风气候,农业气候在空间和时间分布上具有明显的地带性和季节性,季节性干旱成为该地区玉米生产的主要限制因素之一。垄作、深松、秸秆覆盖是黑龙江地区玉米种植的常见处理手

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