Effects of Tillage and Organic Manures Returning to Field on Soil Physical and Chemical Properties and Yield Benefits in Wheat Field

doi:10.7668/hbnxb.2017.05.031

Abstract

Abstract: In order to solve the decreasing soil fertility and productivity caused by unreasonable tillage and long-term excessive use of chemical fertilizers,the study of different tillage and organic manures returning to field on soil physical structure,nutrients and wheat yield benefits in deep tillage condition were analyzed in this experiment in Huojia County,Henan Province.There were six treatments about tillage and fertilizing methods in the trial including deep tillage(S),deep tillage with pig manure returning(SF),deep tillage with maize straw returning(SJ),shallow tillage(Q),shallow tillage with pig manure returning(QF),shallow tillage with maize straw returning(QJ).The results,on one hand,indicated that deep tillage with organic manures returning significantly improved soil bulk density and soil porosity,at the same time increased the soil organic matter content,total phosphorus content,and total nitrogen content in 20-100 cm soil layer.In addition,the deep tillage increased the water content in 20-40 cm soil layer.On the other hand,deep tillage with organic manures returning improved wheat yield components and increased wheat yield.Compared with shallow tillage treatment,other treatments increased gain rate by 2.01%-39.98%,and deep tillage with pig manure returning had the highest net income which increased by 3 242.89 yuan per hectare.In a word,deep tillage with organic manure returning,which improved soil physical structure,increased the soil nutrients and crop yield,and caused better economic benefits too,would be an effective kind of tillage and fertilizing method for wheat cultivation.

Key words: Wheat, Tillage, Organic manures, Physical structure, Soil nutrients, Yield benefits

CLC Number:

SHAO Yun, WANG Jingruo, ZHANG Jinjin, HAN Rui, FENG Rongcheng, MA Shouchen, LI Haoyang. Effects of Tillage and Organic Manures Returning to Field on Soil Physical and Chemical Properties and Yield Benefits in Wheat Field[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2017, 32(5): 208-215. doi: 10.7668/hbnxb.2017.05.031.

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