大棚苦瓜硝硫基螯合肥高效施用技术研究

Efficient Fertilization Technology of Nitrate Sulfonium Chelate Fertilizer on Bitter Melon in Greenhouse

通过田间肥效试验,研究大棚苦瓜的硝硫基螯合肥施用方法。结果表明,在等量氮、磷、钾养分的条件下,硝硫基螯合肥作基肥和追肥分期施用是最佳施肥模式,苦瓜产量达到107.4 t/hm^2,较习惯施肥增产5.9%,净增收提高5.3%。

Field experiment of bitter melon in greenhouse for fertilization method of nitrate sulfonium chelate fertilizer was carried out.The results showed that under the condition of equal amount of nitrogen,phosphorus and potassium,chelate fertilizer application as base fertilizer and recovery fertilizer was the optimal fertilization model,the yield of bitter melon was 107.4 t/hm^2.Compared with the pattern of farmers′ conventional fertilization,the yield increased by 5.9% and the net income increased by 5.3%.