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及土壤中N、P、K、Zn、Mn、Si等对沈农606超级稻的营养特性、吸肥规律及高产优质的影响，并对平衡施肥和生物肥技术进行了研究。试验区土壤有机质（OM）含量处于一般水平，土壤速效N、P、K、Zn普遍缺乏，速效Mn也有一定程度的缺乏；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能显著增加作物产量，多点平均产量为12．58L／hm^2，较习惯施肥区产量增加1．46t／hm^2，增产13．13％。

The Effect of Balanced Fertilization on 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, N, K, Mn, Zn and Si are unfavorable limiting factors for output, it demonstrates that the use of balanced fertilization technique can increase the paddy output significantly, the average output from muhipoint 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%.