晋黍8号黍子“3414”肥料效应试验

Fertilizer Effect of “3414” Experiment on Jinshu 8 Broomcorn Millet

为明确蔚县旱地黍子合理的施肥量,指导该县黍子生产合理施肥,采用田间试验法,在蔚县原种场下河进行黍子"3414+1"肥料效应试验。结果表明:氮、磷、钾肥均影响黍子产量,且氮肥对产量的影响较磷、钾肥大;通过建立回归方程并对其进行分析,黍子产量与氮、磷、钾施肥量之间存在显著的一元二次回归关系;根据回归模型的拟合结果,提出蔚县黍子最高产量氮、磷、钾肥施用量分别为107.6、73.4、80.3kg·hm-2;黍子经济最佳产量氮、磷、钾肥施用量分别为102.5、70.9、75.4kg·hm-2。

To determine the reasonable fertilization rate in dryland millet in Yu county and guide ra-tional fertilization in millet,using field experiment,“3414+1”fertilizer efficiency experiment in broom-corn millet was conducted in Xiahe station of Yu county stock seed farm.The experiment showed that ni-trogen,phosphorus and potassium fertilizers influenced the yield of broomcorn millet,and nitrogen fertil-izer had more effect than phosphorus and potassium fertilizers.Through establishing and analyzing the re-gression equation, it was discovered that there was significant one-factor square regression relation be-tween broomcorn millet yield and the fertilizing rates of nitrogen,phosphorus,potassium.The fitting re-sults of regression model suggested that to obtain maximum yield,the application rates of nitrogen,phos-phorus and potassium fertilizer were 107.6,73.4 and 80.3 kg·hm-2 ,respectively;to obtain the most e-conomical yield,the application rates of nitrogen,phosphorus and potassium fertilizer were 102.5,70.9 and 75.4 kg·hm-2 ,respectively.