农学学报2024，Vol.14Issue(12)：14-18,5.
化肥减量配施矿物生物炭对黄河滩区玉米产量和土壤性质的影响
Effects of Reducing Chemical Fertilizers and Applying Mineral Biochar on Corn Yields and Soil Properties in Yellow River Beach
摘要
Abstract
Concerning the issue of soil quality decline caused by excessive use of chemical fertilizers,and to provide scientific fertilization reference for corn cultivation and soil improvement in this region,this study explored the effects of reducing chemical fertilizers with applying mineral biochar on soil properties and corn yields in the Yellow River floodplain area.In order to study their effects on corn yield and soil properties,different chemical fertilizer reduction combined with mineral biochar treatments were set in this study,including conventional fertilization(F1,applying diammonium phosphate 300 kg/hm2),reducing 12.5%fertilizer with 75 kg/hm2 mineral biochar(F2),reducing 25%fertilizer with 150 kg/hm2 mineral biochar(F3),reducing 37.5%fertilizer with 300 kg/hm2 mineral biochar(F4),and reducing 50%fertilizer with 600 kg/hm2 mineral biochar(F5).The results indicated that the application of mineral biochar in the 0-20 cm soil layer enhanced nitrogen uptake by crops,effectively stabilized soil potassium levels,and increased soil phosphorus content.Compared to F1,the combined application of fertilizer and mineral biochar could significantly improve the corn yields by 1.48%-12.61%.Especially,when the application rates were 262.5 kg/hm2 of diammonium phosphate and 75.0 kg/hm2 of mineral biochar,corn yields and economic benefits reached their maximum.These findings demonstrated that replacing chemical fertilizer with mineral biochar could improve soil properties and ensure corn yields.关键词
矿物生物炭/化肥减量/土壤性质/玉米/产量/经济效益Key words
mineral biochar/reducing fertilizer/soil properties/corn/yield/economic benefits分类
农业科技引用本文复制引用
白雪原,苏和,宗莉,闫东,王晓凤,娜娜..化肥减量配施矿物生物炭对黄河滩区玉米产量和土壤性质的影响[J].农学学报,2024,14(12):14-18,5.基金项目
内蒙古黄河流域农牧业绿色发展技术集成示范项目. （）
