Research on the Effect of Crop Stubbles on Soil Enzyme Activity and Nutrient of Gravel-mulched Field(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Research on the Effect of Crop Stubbles on Soil Enzyme Activity and Nutrient of Gravel-mulched Field

Author(s):: WANG Chao1; WANG Jianyu1; WU Xiuling2; WANG Fei1; HE Jing1; （1.College of Resources and Environment，Ningxia University,Yinchuan，Ningxia 750021;2.Soil and Fertilizer Test Center of Yinchuan，Yinchuan,Ningxia 750002）

Keywords:: crop stubbles; gravel-mulched field; soil enzyme activity; soil nutrient

Abstract:: The watermelon field continuously cropped for five years was investigated between 2007 and 2012 in order to analysis the effect of soil enzyme activity and nutrient of gravel-mulched with different crop stubbles (watermelon→sunflower，watermelon→pea，watermelon→chili，watermelon→cotton) in comparison with watermelon→watermelon.The results revealed that,with the increasing of soil depth of the same crop stubbles in the depth of 0~30 cm，the content of soil enzyme activity had a significant increase，while total nitrogen，soil organic matter and soil water also showed the increasing tendency with the soil depth.The content of soil enzyme activity with different crop stubbles treatment were all lower than that with continuous watermelon cropping treatment，while other indicators appear with different root distribution and absorbing ability as the differentiation state.All in all，the soil fertility of watermelon crop stubble was higher than the other crop stubbles.The soil of gravel-mulched was more suitable for watermelon.

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Last Update: 2016-01-08