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Position: Home > Articles > Study on Capacity of Water and Nutrient Preserving of Sandy Soil Mixed with Clay Hubei Agricultural Sciences 2016,55 (21) 5529-5531+5558

沙土掺黏土后土壤保水保肥性研究

作  者:
岳殷萍;张伟华
单  位:
内蒙古农业大学草原与资源环境学院
关键词:
沙土;黏土;保水保肥能力
摘  要:
采用室内土柱模拟的方法,研究不同剂量(0、176.60、235.46、294.33 g)的黏土对一定比例的混合沙土保水保肥能力的改良效果。结果表明,黏土能显著提高混合沙土的保水保肥能力。与对照相比,磷酸二铵溶液在加有黏土的土柱中渗透更慢,且渗透速率随黏土的施入量而减小;淋溶液中的铵态氮与有效磷总量随黏土施用量的增加而减少,说明黏土可以显著提高混合沙土的保水与保肥能力。
译  名:
Study on Capacity of Water and Nutrient Preserving of Sandy Soil Mixed with Clay
作  者:
YUE Yin-ping;ZHANG Wei-hua;College of Grassland,Resources and Environment,Inner Mongolia Agricultural University;
关键词:
sandy soil;;clay soil;;water and fertilizer retention
摘  要:
Different doses(0、176.60、235.46、294.33 g) of clay soil were mixed sand and their capacity of water and nutrient preserving were studied by the indoor soil column simulated analysis method. The results showed that the clay soil could significantly increase the water-holding capacity of mixed sand and protecting fertilizer ability. Compared with controls, diammonium phosphate permeated in clay soil more slowly, and the penetration rate decreased with clay soil of intake. Leaching solution of ammonium nitrogen and total phosphorus effectively decreased with the applying of clay content. The clay soil can significantly improve the capability of water and protecting fertilizer of mixed sand.

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