2015•Zhongguo gua-caiRequires access

Best ratio of nitrogen,phosphorus and potassium for 'Luofan 12' tomato

LI Hong-b

Abstract

The mathematical model on relationship between yield and fertilizer application was used to study nitrogen,phosphorus and potassium requirement for'Luofan 12'tomato based on the3414quadratic regression design. The results showed that high yield was 7 551.42 kg per 667 m2 according to the established quadratic polynomial model equation,and the best N,P and K fertilizers were N 19.44 kg,P2O5 19.44 kg and K2 O 31.94 kg each 667 m2 respectively.

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Key concepts: Phosphorus, Potassium, Yield (engineering), Nitrogen, Biology, Polynomial regression, Fertilizer, Agronomy