1.Study on mathematical model of optimum fertilizer application to Pinellia ternate cultivation.
Peng WANG ; Jianwen PEI ; Wanchang SUN ; Shaoping YANG ; Wenjun LIU ; Xinrong SUN
China Journal of Chinese Materia Medica 2009;34(6):669-673
OBJECTIVETo study the mathematical model of optimum fertilizer application to Pinellia by field experiments.
METHODThree factors and 5 levels quadratic rotational combination design was applied to study the effects of N, P and K.
RESULT AND CONCLUSIONN, P and K combination application can achieve the maximum yield of 29,921.4 kg x hm(-2), the amount of N, P2O5, K2O were 413.79, 224.79, 164.01 kg x hm(-2), respectively. The effects of the 3 factors were in following orders: P > N > K.
Agriculture ; methods ; Fertilizers ; Linear Models ; Models, Biological ; Pinellia ; drug effects ; growth & development
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