有机无机生物活性肥料施用技术对蔬菜作物生长及产量的影响

田间试验结果表明:施用有机无机生物活性肥料能明显提高蔬菜作物长势,提高甘蓝抗根腐和烂心病能力。在等氮条件下,与常规对照相比产量基本持平,差异并不显著;但每666.7m2可节约成本24元左右,幅度达30,7%。椐统计分析,甘蓝最佳施肥置以100kg/666,7m2为宜,此用量可比常规对照增产9.3%,每666.7m2增加收入295元。在施用总量不变的条件下,减少有机无机生物活性肥料基肥比例,甘蓝则有碱产趋势。

Effect of the Application Strategies of Bio-activated Organo-inorgano-mixed Fertilizer on the Growth and Yield of Vegetables

Results from field experiments showed that bio-activated organo-inorgano-mixed fertilizer could conspicuously improve the growth of vegetables and their resistance to root rots disease as well. The application of bio-activated organo-inorgano-mixed fertilizer with equivalent N to conventional fertilizers did not exhibit a statistical difference in yield compared with conventional fertilizers and this practice could save 24 yuan/666.7 m2 (30.7% less than conventional fertilizers). Statistical analysis suggested that the optimum rate of bio-activated organo-inorgano-mixed fertilizer was 100kg/666.7m2 for cabbage, 9.3% of increase in yield equiva1ent to 295 yuan/666.7 m2, compared with the conventional fertilization strategy. Decrease in the ratio of bio-activated organo-inorgano-mixed fertilizer to chemical fertilizers displayed a negative effect on the yield of cabbage.