不同氮磷钾组合搭配对佛手茶产量效应的影响初报

以茶叶目标产量为基础，以氮磷钾肥料不同组合搭配进行L9（3^4）正交试验，结果氮磷钾肥取2：1：1水平为最优化配方组合，处理4（A281C2）、处理6（A283C1）较接近最优化配方组合，但经经济效益分析，只有处理6（A283C1）单产582．00kg／667m^2，纯收入2973．59元／667m^2为最佳组合。由此认为在粘质红壤施肥，应以氮肥为主，配合施用速效磷肥，即尿素32．60kg／667m^2、钙镁磷66.18kg／667m^2、氯化钾7．50kg／667m^2，纯N14．996kg／667m^2，N：P2O5：K2O=1：0．75：013为最佳组合较合理。佛手茶是大叶品种，适量增施氮磷肥，有利于促进新梢的生长而提高产量.

The phosphorus potassium of different nitrogen makes the impact on effect of output of the fingered citron tea up to offer for the first time

The author acts according to the tea goal output the foundation, carries on L9（34） orthogonal experiment by nitrophoskas material different combination matching, finally the nitrophoskas takes 2, 1, 1 level for the optimized formula combination, processes 4（A2B 1 C2）, processes 6（A2B3C 1 ） close optimized formula combination, but after economic efficiency analysis, only then processes 6（A2B3C1 ） per unit area yield 582.00 kg/667 m2, the net income 2973.59 Yuan/667 m2 are the optimal fits. From this thought applies fertilizer the type on the mucilage red soil, should take the nitrogenous fertilizer primarily, the coordinate employment fast-acting phosphate fertilizer, namely the urea 32.60 kg/667 m^2, the calcium magnesium phosphorus 66.18 kg/667 m^2, the potassium chloride 7.50kg/667 m^2, N 14.996 kg/667 m^2, N：P2O5：K2O=1：0.75：0.3 be reasonable as the optimal fit. The finger citron tea is the big blade section variety, right amount increases executes the nitrogen phosphate fertilizer, is advantageous enhances its output in the promotion finger citron tea new tree top growth.