Author(s): HAO Hong-bo, CUI Hai-ying, HU Jia-ming, LI Ming-zhe
Pages: 456-464
Year: 2015 Issue:  z1
Journal: Acta Agriculturae Boreali-Sinica
Keyword:  Foxtail millet; No-tillage; Yield; Soil nutrient;
Abstract: The effect of the no-tillage mantle model of summer millet system on growth,yield and soil environ-ment were studied from 2012 to 2013 year.The results showed that compared with those in conventional tillage,the yield of no-tillage summer millet increased by 7.90%,and the soil layer were higher,the water content of no-tillage in 0 -150 cm depth soil were increased by 6.71%,especially in 0 -40 cm depth soil the water content were in-creased by 13.40%.So that is showed that the water content in 0 -40 cm soil in no-tillage treatment was signifi-cantly higher than in conventional tillage.Compared with conventional tillage,at jointing period,grain filling period and maturing period,the hydrolyzable nitrogen content of no-tillage in 0 -40 cm depth soil were reduced by 34.22%,31.78%,40.77%;the available phosphorus content of no-tillage were increased by 34.22%,31.78%, 40.77%;the available potassium content of no-tillage were reduced by 12.90%,9.53%,6.12%;the organic mat-ter content of no-tillage were increased by 3.26%,4.98%,6.16%.The NO 3 -N content in 0 -100 cm depth soil of-no-tillage at jointing period and maturing period were increased by 55.15%,70.33%,but at grain filling period was reduced by 22.82%.