Effects of Straw-decomposing Agent on Degrading Efficiency of Maize Straw and Physical and Chemical Properties of Cold and Black Soil Area in China

doi:10.7668/hbnxb.2015.S1.091

Abstract

Abstract: In order to explore the effect of different straw-decomposing agents from different producing areas on degrading efficiency of maize straw and soil physical and chemical properties in cold and black soil area in China,a frame experiment and micro plot experiment of field were used to study.The results showed that degrading efficiency of maize straw were better than control,above 70% with straw-decomposing agents of Beijing Zhengnong agri-Tech.Co.,Ltd.and Shandong Jinshan bio-engineering Co.,Ltd..The change of soil pH value,total nitrogen,alkali-hydrolyzale nitrogen,available phosphorus,organic carbon and organic matter weren't significant,but the contents of available potassium in the soil with two species of straw decomposition agent were increased,higher 6.23% and 7.94% than control,respectively.Soil bulk density were reduced 0.10,0.12 g/cm³ by the two species of straw decomposition agents,and soil water content was increased 1.4 percentage points than control with straw-decomposing agents of Beijing Zhengnong agri-Tech.Co.,Ltd.Therefore,maize straw were degraded faster by the two species of straw decomposition agents in Heilongjiang Province,and which were in favor of improving physical and chemical properties of soil.

Key words: Maize straw, Decomposition agent, Degrading efficiency, Soil fertility

CLC Number:

S513.01

LI Chun-jie, SUN Tao, ZHANG Xing-yi. Effects of Straw-decomposing Agent on Degrading Efficiency of Maize Straw and Physical and Chemical Properties of Cold and Black Soil Area in China[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2015, 30(S1): 507-510. doi: 10.7668/hbnxb.2015.S1.091.

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