岳西县桑园肥料施用效果试验

Effect of Fertilizer Application in Mulberry Fields in Yuexi County

为明确岳西县桑园最佳肥料施用量,促进当地农户增产增收,特设置配方施肥与农户常规施肥对比试验及氮、磷、钾缺失的影响试验。结果表明:产量以配方施肥最高,达到32090 kg/hm^(2),极显著高于其他处理;常规施肥次之,为30630 kg/hm^(2);二者产量均极显著高于其他缺素处理及空白对照。净收益也以配方施肥最高,达到73367.80元/hm^(2)。因此,配方施肥可以更好地提高桑叶产量和效益,在岳西县为最佳施肥模式;在桑园管理过程中,只有氮磷钾配合施用才能更好地实现增产增效。

In order to clarify the optimal fertilizer application rate in mulberry fields in Yuexi County and increase local farmers′production and income,a comparative study was conducted between formula fertilization and farmers′conventional fertilization,as well as an experiment on the impact of nitrogen,phosphorus and potassium deficiency.The results showed that the yield of mulberry leaves was highest with formula fertilization,reaching 32090 kg/hm^(2),which was significantly higher than that of other treatments.Conventional fertilization ranked second(30630 kg/hm^(2)).The yield of formula fertilization and farmers′conventional fertilization were significantly higher than that of other nutrient deficient treatments and blank controls.The net income was also highest with formula fertilization,reaching 73367.80 yuan/hm^(2).Therefore,formula fertilization could better improve the yield and benefit of mulberry leaves,and was the best fertilization mode in Yuexi County.In the management process of mulberry fields,only the combined application of nitrogen,phosphorus and potassium could better achieve increased yield and efficiency.