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一、覆盖麦秸好处 1、提高了保墒能力。夏玉米是需水较多的作物,麦收后利用麦秸进行覆盖,既可增加降水入渗,又可减少土壤水分的散失,提高了土壤蓄水保墒能力。据测定,覆盖田较不覆盖耕层0—20厘米土壤含水量提高5％,每亩可多保蓄水分4.25—17.65立方米。 2、改善了物理性状。覆盖麦秸后,土壤不易板结,容重变轻,孔隙度增加。据测定,覆盖田比不覆盖田0—10厘米土壤容重减轻2.8—8.2％,总孔隙度增加3.2—10.1％;10—20厘米土壤溶重减轻2.1—7.4％,总孔隙度增加2.4—9.4％。从而为玉米生长创造了良好的土壤条件。
First, covering the benefits of wheat straw 1, improve the ability to maintain moisture. Summer maize is a crop requiring more water. After the wheat is harvested, wheat straw is used to cover it, which can increase precipitation infiltration and reduce soil water loss and improve soil water storage and soil moisture retention. It has been determined that the coverage of fields 0-20 cm less covered topsoil moisture content increased by 5% per mu can save more water 4.25-17.65 cubic meters. 2, to improve the physical properties. After covering the wheat straw, the soil is not easily compacted, the bulk density is lighter and the porosity is increased. It has been determined that the soil bulk density of 0-10 cm covered by field coverage is reduced by 2.8-8.2% and the total porosity is increased by 3.2-10.1%. The soil soluble weight of 10-20 cm is reduced by 2.1-7.4% and the total porosity is increased by 2.4-9.4 %. Thus creating good soil conditions for the growth of corn.