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2006～2007年在江门市新会区开展了水稻“三控”施肥技术的示范和推广应用。结果表明,与农民习惯施肥法相比,“三控”施肥法氮、磷、钾肥施用量分别减少17.64%、38.81%和20.79%;肥料总量及其成本分别比对照减少23.56%和25.24%;增收节支20.54%,产投比提高52.88%。2年的示范推广均取得了省肥抗倒、节本增效的明显效果,为“三控”施肥技术的大面积推广应用奠定了基础。
From 2006 to 2007, demonstration and popularization and application of rice “three control” fertilization technologies were carried out in Xinhui District, Jiangmen City. The results showed that the application rates of nitrogen, phosphorus and potassium decreased by 17.64%, 38.81% and 20.79% respectively compared with the conventional fertilization by peasants; the total amount of fertilizer and its cost decreased by 23.56% and 25.24% respectively compared with the control %; Income and expenditure savings 20.54%, production and investment ratio increased 52.88%. Two years of demonstration and promotion have achieved a significant effect of saving fertilizer and reducing costs and increasing efficiency, laying a foundation for the popularization and application of “three control” fertilization technologies.