论文部分内容阅读
[目的]为快速提高中低产田肥力和农田生产力提供理论依据。[方法]通过田间试验研究了不同栽培管理模式(农民习惯耕作栽培与高产栽培管理模式)和养分管理模式(传统养分管理模式和高效养分管理模式)对冬小麦/夏玉米轮作体系中作物产量和土壤肥力的影响。[结果]在高产高效管理模式下,作物产量显著高于农民习惯管理模式。经过5季作物的试验,高产高效管理模式的农田有机质含量提高了2.72～3.01g/kg,土壤全氮含量升高了0.12～0.16g/kg,速效磷(Olsen-P)含量增加了5.2mg/kg,速效钾含量升高了37.8mg/kg。[结论]综合考虑作物产量和土壤肥力,高产高效管理模式是中低产农田作物产量提高和耕地地力提升的有效途径。
[Objective] The research aimed to provide a theoretical basis for rapidly increasing the fertility and farm productivity of mid-low yield field. [Method] The effects of different cultivation management modes (farmer habitat cultivation and high yield cultivation management mode) and nutrient management mode (traditional nutrient management mode and high efficiency nutrient management mode) on the yield and soil of winter wheat / summer maize rotation system were studied through field experiments. [Method] Fertility effects. [Result] Under the mode of high yield and high efficiency, crop yield was significantly higher than peasant habit management. After five seasons crop experiments, the content of organic matter in farmland increased by 2.72-3.01 g / kg, the total nitrogen content in soil increased by 0.12-0.16 g / kg, and the content of available phosphorus increased by 5.2 mg / kg, available potassium increased 37.8mg / kg. [Conclusion] Combining crop yield and soil fertility, high yield and high efficiency management mode is an effective way to increase crop yield and improve farmland productivity in middle and low yield farmland.