氮磷不同配比施肥对加工番茄生长及产量的影响

Effect of Nitrogen and Phosphorus Fertilizer on the Growth and Yield of Process Tomato

配方施肥明显改善了加工番茄的生长，增加了植株分枝数、单株坐果数和单果重，对提高加工番茄的产量有显著效果；过多的氮肥投入反而影响番茄的产量。结果表明：N：P2O5=1：1，投肥总量为施纯N1.073-1.38kg／hm^2，P2O5 0.981-1.38kg／hm^2，产量和效益最佳。

Two-year experiments showed that N P balanced fertilization obviously improved growth and yield of process tomatoes, and increased the number of the plant branch, numbers of fruits per plant,and weight of single fruit. The excessive nitrogen fertilizer had negative effects on ratio Of the tomato yield. Statistic analysis indicated that N：P=1：1, with application of pure Nitrogen 1.073-1.38 kg/hm^2 ,and P2O5 0.981-1.38 kg/hm^2 were the best for yield and benefits.