复配柠条基质番茄栽培中氮磷钾的优化配施方案

Study on optimization of N,P,K fertilization scheme of tomato with complex matrix Caragana korshinskii as substrate culture

以番茄为试材，以发酵的柠条作为主要组分的无土栽培基质，采用三因子二次回归通用旋转组合设计，研究氮、磷和钾对番茄产量的综合效应.结果表明：三因子对番茄产量的作用表现为施氮量〉施钾量〉施磷量；经过计算机模拟优化，要使番茄产量高于4538.51 g/株，氮、磷、钾每株施用量分别应为48.76～51.87 g、5.40～6.60 g和21.44～23.41 g.

The comprehensive effects of the N,P and K on tomato yield were studied by the quadratic general rotary unitized design with third factors under complex matrix Caragana korshinskii as substrate culture condition.The results showed that the effects of three fertilizers on tomato yield was taking the or-der of ：N＆gt;K2 O＆gt;P2 O5 .By computer simulating,the optimum fertilizers application scheme of individual was N 48.76~51.87 g,P2 O5 5.40~6.60 g and K2 O 21.44~23.41 g,the yield of individual could be more than 4 538.51 g/plant.The theoretical basis was provided about scientific fertilization of tomato with com-plex matrix Caragana korshinskii as substrate culture.