Mutual effects of N-K, N& Mg and K-Mg had positive compound effect on the yield and fecula contents of pumpkin when nitrogen, potassium and magnesium were at proper level. 氮钾、氮镁、钾镁互作对南瓜产量和淀粉含量在适当水平表现为正互作效应,而在高水平下表现为负互作效应。
Design and Application of Digital analogy control System in Fecula Production Field 混合控制系统在淀粉生产中的设计与应用