江西农业学报2016，Vol.28Issue(2)：12-16,5.
红壤丘岗坡耕地复式保护性耕作效应试验
Effect Test for Duplex Conservation Tillage in Red Soil Slope Farmland
摘要
Abstract
Aiming at the seasonal drought and serious soil erosion problem in subtropical red soil slope farmland, by proceed-ing the slope runoff plot test, performed a research about influence of red soil sloping duplex conservation tillage( TP) in Paogong village, Hengnan county, Hunan province from 2010 to 2014.The results showed that: compared with regular farming, the soil organic matter increased 10.2 g/kg from mildly deficient to rich level, the soil moisture increased 3.7%; the sediment loss de-creased 96.7%, and the annual erosion 2.15 t/hm2 , which was close to 1.8 t/hm2 of the erosion magnitude allowance in slope cultivated land of red soil, The corn yield increased 835.5 kg/hm2 and rape yield increased 432.0 kg/hm2 , the output value in-creased 4499.4 yuan/hm2 , and the input-output ratio increased from 1.57 to 2.59, the return on investment increased 65%.关键词
红壤/坡耕地/复式保护性耕作/效应Key words
Red soil/Slope farmland/Duplex conservation tillage/Effect分类
农业科技引用本文复制引用
魏晓,李红,苏昌贵,高更和,谢庭生..红壤丘岗坡耕地复式保护性耕作效应试验[J].江西农业学报,2016,28(2):12-16,5.基金项目
国家自然科学基金项目（41271192）；湖南省科技支撑计划项目（2009T4013）。 （）
