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心土混层耕改造白浆土效果研究
引用本文:赵德林,刘峰.心土混层耕改造白浆土效果研究[J].中国农业科学,1994,27(4):37-45.
作者姓名:赵德林  刘峰
作者单位:黑龙江省农业科学院合江农业科学研究所,佳木斯 154007
摘    要: 经过7年系列试验和两年心土混层耕改良白浆土效果试验证明:设计心土混层耕犁的理论依据是保持耕层,改造白浆层。淀积层与白浆层按1∶1或0.5∶1混拌,应用心土混层耕犁的农艺参数为上翻20cm,下混30-40cm。心土混层耕具有持续改土增产效果,粮豆作物第一年增产15.6%,第二年增产11.4%;心土层土壤硬度降低,抗穿透阻力从25kg/cm#+2降到5-10kg/cm#+2,土壤饱和透水系数提高1.7-7.3倍,土壤抗旱涝能力提高。心土混层耕改土经济效益显著,改土效益期内(两年)每台犁可获纯收益18.7万元。

关 键 词:白浆土  心土混层耕  混拌比例  农艺参数

THE EFFECT OF TRANSFORMING PLANOSOL BY USING SUBSOIL MIXED PLOUGH
Zhao Delin, Liu Feng,Jia Huibin, Hong Fuyu.THE EFFECT OF TRANSFORMING PLANOSOL BY USING SUBSOIL MIXED PLOUGH[J].Scientia Agricultura Sinica,1994,27(4):37-45.
Authors:Zhao Delin  Liu Feng  Jia Huibin  Hong Fuyu
Abstract:The pot culture and the plot experiment tested for seven years and the experiment transformed Planosol by using subsoil mixed plongh for two years pointed out :The purpose of the machine designed was to keep ploughed layer and improve Aw horizon.The proportion of mixing B horizon and Aw horizon was 1:1 and 0.5:1 . The agronomic parameter was to plough upper layer for 20cm and mix low layer for 30-40cm. After the machine was used, the soil production was increased continuously, the rate of grain and soybean yields was 15.6% in the lst year and 11.4% in the 2nd year.The soil hardness of subsoil layer was reduced from 25kg/cm2 to 5-10kg/cm2; The water permeability of the subsoil was increased 1.7-7.3 times; the water storage capacity of the soil was increased, which meant that the soil could be able to resist drought and waterlogging effectively. The economic benefit of improving planosol by using the subsoiler was efficient and 187 thousand yuan(RENMINBI) per subsoiler could be earned in two years.
Keywords:Planosol(Baijiang soil)  Subsoil mixed plough  The proportion of mixing  Agronomic parameter
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