平衡施肥对稻田产量和土壤养分的影响

分析了水稻田土壤营养状况,土壤中N、P、K、Zn、Mn、Si等对沈农606超级稻的营养特性、吸肥规律、以及产量、质量的影响。对平衡施肥和生物肥技术进行了实验研究。试验区土壤有机质含量处于一般水平,土壤速效N、P、K、Zn及Mn普遍缺乏;N、K、Mn、Zn、Si均为产量限制因子。应用高产优质平衡施肥技术可以显著增加作物产量,多点平均产量为12.58t/hm2,较习惯施肥区产量增加1.46t/hm2,增产13.13%。

Influence of balanced fertilizing for paddy output and soil nutrient

This paper analyzes the influences of nutrition status and N, P, K, Zn, Mn, Si contents in the soil to the nutrient characteristic, fertilize absorbing rules, and output as well as quality of the paddy, using 606 super paddy of Shenyang Agriculture University as the sample. We experiment on an ordinary paddy soil with common level of organic ingredient and lacking of quick acting N, P, K, Zn and Mn, i.e. unfavorable limiting factors for output. It demonstrates that the use of bio fertilization and balanced fertilization technique can increase the paddy output significantly. The average output from multipoint experiment is 12.58?t/hm2, 1.46?t/hm2 more than that of conventionally fertilized field, with an increase of 13.13%.