摘要
根据国家测土配方施肥技术实施规范要求,从2008至2011年,在黄淮流域黄褐土区开展了玉米的"3414"试验,通过对结果的统计分析,提出土壤有效磷、速效钾的养分校正系数,进而通过土壤供磷(供钾)能力=土壤有效磷(速效钾)的测定值×土壤养分校正系数×2.25这一数学公式,为农民玉米种植时根据目标产量和当地生产条件及土壤养分测定值进行施肥提供了技术依据。
The study of corn through＂3414＂experiment was taken from 2008 to 2011 in yellow cinnamon soil Huanghuai area,according to the national technical standard.Through the statistical analysis of results in experiments,the correction coefficients of soil available P and K were determined.Thus,considering the formula that soil P（K） spontaneous supply capacity = soil available P（K） content × soil nutrient correction coefficient × 2.25,we provided the technical basis to local farmers,so that they could adopt digital fertilization when growing corns,achieving the maximum of target yield.
出处
《中国土壤与肥料》
CAS
CSCD
北大核心
2013年第4期94-96,共3页
Soil and Fertilizer Sciences in China
基金
河南省重大公益性科研项目(081100911500)
关键词
黄褐土
玉米
“3414”试验
校正系数
yellow cinnamon soil
corn
＂3414＂fertilizer experiment
correction coefficient
