摘要
本文研究了高台位旱地石灰性紫色土的肥力退化因子,并针对紫色母岩矿质养分丰富、易风化成土的特点,以一种培肥耕作法-聚土免耕耕作法培肥土壤。结果表明,采用此耕作法的土壤具有防蚀、抗旱、培肥和自调能力,能提高系统生产力。
This paper studied fertiled degrad ation factors of limy purple soils in higher platform arid land.The soils was fertilized by seasonal nontillage on collected soils ridge cropping method ,according to the feature of rich mineral nutrients of purple native-rock and easily weathering made-soil.The result showed this cropping method decreasing the run-off of soil and water,enhancing the resistant ability to drought,improving soil fertility,and promot- ing the oneself adjusting ablity and productivity of the system also.
关键词
旱地
紫色土
聚土免耕
培肥
耕作法
higher platform arid land
seasonal non-tillage on collected soil ridge cropping method
limy purple soil
