二熟制粮食超高产田土肥水技术指标研究

摘要：通过创造性地引用节水高产栽培、因土平衡施肥等技术，基本做到了经济利用水、肥、土资源；在三年的高产实践中，实现了粮食单产保持1.4t/667m2以上水平的同时，水分生产效率达到2 kg/m3以上高水平，按土壤、肥料实际供应有效养分总量计算的养分生产效率也基本达到7 kg/kg以上，且粮食单产达到1524.75 kg/667m2时，总有效养分生产效率提升至8.07 kg/kg，较好地体现了高产高效同步。

The Research on the Soil-Fertilizer-Watering Integrate Technical Indenies of Double-Cropping System Super-High-yield Field

In order to explore Double-Cropping System,cycle output ≥21000 kg/hm2 high level,the water consumption rule,the nutrient supply rule,the corresponding moisture content production efficiency and the nutrient production efficiency,Water-saving high-yield cultivation and balance fertilization decision technology was used to utilize water,fertilizer and land resource economically. In three years high-yield experimentation,grain yield was upper 21000 kg/hm2,water production efficiency was also higher than 2 kg/m3 and nutrient supplied practically by soil and fertilizer production efficiency was more than 7 kg/kg at the same time. When grain yield was 22871.25 kg/hm2,the total nutrient production efficiency was up to 8.07 kg/kg,high yield grew in step with high efficiency.