精确定量栽培条件下不同施肥水平对水稻生长和产量影响试验研究

Study on Different Fertilizer Levels on Growth and Yield of Rice Under the Condition of Precise and Quantitave Cultivation

为探讨水稻精确定量栽培在水稻实际生产上的应用效果,研究和比较了水稻在精确定量栽培条件下不同密度、不同施肥量和施肥方法对水稻生长和产量的影响。结果表明:在相同施肥量及常规密度情况下,精确施肥方法比常规施肥增产9.44kg/667m^2。常规施肥量施肥方法和精确施肥量精确方法下,产量相当,但后者更节省肥料。在相同施肥水平和方法下,高密度均较常规密度表现高产。

In order to explore the application effect of rice precision quantity seeding and cultivation in rice production, the effect of dif- ferent fertilizer levels and different density on growth and yield of rice were stuied. The result showed that accurate fertilization method increased yield by 9.44kg/667m2 compared with conventional fertilization under the condition of same fertilizer amount and conventional density. The yield of conventional fertilization amount and method was similar with accurate fertilization method and amount, but the lat- ter was more economical to fertilizer. The yield of high density was higher than low density under the same fertilization method and a- mount, so density was still one of the decisive factors of yield.