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表观肥料效应仅能反映植株养分累积量与经济产量的关系.单一养分、养分组合、比较效应等可通过农艺、生理效应研究氮、磷、钾组合对水稻生长发育的影响,从而较为系统、完善地研究肥料效应.该水稻试验表明水稻农艺效应,钾素效应最大,氮、钾平衡对生物量影响明显;生理效应,氮素效应明显,氮、磷平衡对经济产量影响最大;比较效应表明配方肥以3∶1∶1优于2∶1∶1配方.
Apparent fertilizer effect can only reflect the relationship between plant nutrient accumulation and economic yield.The effects of nitrogen, phosphorus and potassium on the growth and development of rice can be studied through agronomic and physiological effects, such as single nutrient, nutrient combination and comparative effect, The results of this experiment show that rice has the most agronomic and potassium effects, and the balance of nitrogen and potassium has obvious effects on the biomass. The physiological and nitrogen effects are obvious, and the balance of nitrogen and phosphorus has the greatest impact on the economic yield. Formulation fertilizers are 3: 1: 1 better than 2: 1: 1 formulations.