莆田忠门旱地生态农业示范区综合研究Ⅱ.保持和提高土壤肥力的研究

Comprehensive Research on Ecological Agriculture of Dry Land in Zhongmen of Putian County Ⅱ.Research on Preservation and lmprovement of soil Fertility

摘要: 三年小区试验和大面积示范表明,发展畜牧、增施有机肥,可使土壤有机质和土壤全氮增加。水稻优化施肥,薯、麦配方施肥,调整氮、磷、钾比例,改变当地氮素投入大于产出、磷素基本平衡、钾素亏损较大的局面,并能提高氮素利用率,增加产量,节省肥本。合理使用植物营养素,可使甘薯、小麦、水稻、花生、大豆诸作物增产。
- 土壤肥力 /
- 有机肥 /
- 优化施肥 /
- 配方施肥 /
- 养分平衡
Abstract: The plot experiments and large-area demonstration in three years indicated that the practices of developing animal husbandry and applying organic manure could increase the organic matter and total nitrogen in the soil.The optimum fertilization for rice and formula fertilization for sweet potato and wheat and adjusting the proportion of N,P,K changed the situation of nitrogen,which was over-ap-plied for crop production,and that of potasium was deficient fo a great extent,thus raised N-utilizing efficiency,increased yield and saved fertilizer cost.The optimum utilization of plant nutrient elements enabled the increase of crop yields of wheat,rice,peanut and soybean.
- Soil fertility /
- Organic manure /
- Optimurn fertilization /
- Formula fertilization /
- Nutrient balance