白浆土心土培肥效果的研究  

Effect of Subsoil-fertilizing of Lessive Soil

作　　者：刘峰 贾会彬 赵德林 张春峰 张洪全 

机构地区：[1]黑龙江省农科院合江农科所

出　　处：《黑龙江农业科学》1997年第3期1-4,共4页Heilongjiang Agricultural Sciences

摘　　要：在大区和微区条件下，研究了白浆土心土培肥对土壤化学性质的改良效果和增产作用；进一步明确心土混层心土混层耕对土壤性结构的影响，研究结果表明，白浆土心土培肥比心土混层耕增产７．３～１０．３％；心土培肥后第一年比未处理对照增产甜菜３２．３％，增产大豆１５．２％；第二年增产大豆１６．９％；对白浆土进行心土培肥，可以达到彻底消除白浆层不良影响和培肥白浆土的目的。The effect of lessive subsoil-fertilizing on improving chemical characteristics of the soil and on increasing yield was studied. The results showed that, compared wity subsoil tillage, Lessive subsoil-fertilizing increased yield by 7. 3 ～ I 0. 3%. Compared with untreated control, the subsoil-fertilizing increased the yield of beet by 32. 3% and soybean 1 5. 2 % in first year , and in second year increased the yield of soybean by 1 6. 9 % . The attempt of removing harmful effect of lessive layer and building up the fertility of lessive soil may be achieved by subsoil-fertilizing.

关 键 词：白浆土 心土混层 心土培肥 微结构 

分 类 号：S155.26[农业科学—土壤学]