Effects of different mechanized soil fertilization methods on corn soil fertility under continuous cropping

International Symposium on Resource Exploration and Environmental Science

地球科学;生态环境科学

Shi, Qingwen^1 ; Wang, Huixin^2 ; Bai, Chunming^2 ; Wu, Di^1 ; Song, Qiaobo^1 ; Gao, Depeng^1 ; Dong, Zengqi^1 ; Cheng, Xin^1 ; Dong, Qiping^1 ; Zhang, Yahao^1 ; Mu, Jiahui^1 ; Chen, Qinghong^1 ; Liao, Wenqing^1 ; Qu, Tianru^1 ; Zhang, Chunling^1 ; Zhang, Xinyu^1 ; Liu, Yifei^1 ; Han, Xiaori^1

Shenyang Agricultural University, Shenyang, China^1

Liaoning Academy of Agricultural Sciences, Shenyang, China^2

关键词: Available nutrients;    Granular fertilizers;    Physical characteristics;    Soil fertility;    Soil fertilization;    Surface applications;    Total nitrogen;    Total phosphorus;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/64/1/012109/pdf
DOI  :  10.1088/1755-1315/64/1/012109

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Experiments for mechanized soil fertilization for corns were conducted in Faku demonstration zone. On this basis, we studied effects on corn soil fertility under continuous cropping due to different mechanized soil fertilization methods. Our study would serve as a theoretical basis further for mechanized soil fertilization improvement and soil quality improvement in brown soil area. Based on the survey of soil physical characteristics during different corn growth periods, we collected soil samples from different corn growth periods to determine and make statistical analysis accordingly. Stalk returning to field with deep tillage proved to be the most effective on available nutrient improvement for arable soil in the demonstration zone. Different mechanized soil fertilization methods were remarkably effective on total phosphorus improvement for arable soil in the demonstration zone, while less effective on total nitrogen or total potassium, and not so effective on C/N ratio in soil. Stalk returning with deep tillage was more favorable to improve content of organic matter in soil, when compared with surface application, and organic granular fertilizer more favorable when compared with decomposed cow dung for such a purpose, too.