硫酸钾镁肥对娃娃菜生长发育的影响

Influence of Magnesium Potassium Sulfate Fertilizer on Growth and Development of Baby Vegetable

以娃娃菜为试材,观测并分析了硫酸钾镁肥对娃娃菜生长性状和产量的影响,结果表明:硫酸钾镁肥能显著提高娃娃菜产量,增强植株长势,但对娃娃菜的生育期影响不大。随着施肥量的增加,产量也随之增加,以常规施肥+基施硫酸钾镁肥(以K2O计算)45 kg/hm2+生长中期追施硫酸钾镁肥(以K2O计算)60 kg/hm2产量最高,比不施硫酸钾镁肥增产24.13%。因此,综合考虑娃娃菜生长、产量和经济效益等因素,硫酸钾镁肥最佳施肥量为105 kg/hm2。

Baby vegetable was used as test material,the influence of magnesium potassium sulfate fertilizer on growth characters and yield of them were observed and analyzed. The results showed that magnesium potassium sulfate fertilizer significantly increased the yield,enhanced plant growth, but had little effect on growth stage of baby vegetable.With the increasing of fertilizer application, yield increased.Conventional fertilization ＋ magnesium potassium sulfate fertilizer （K20）45 kg/hm^2 as base fertilizer＋magnesium potassium sulfate fertilizer （K20）60 kg/hm^2 as topdressing at middle growth stage ,got the highest yield ,increased by 24.13% compared with the control. Considering the factors such as baby vegetable growth ,yield and economic benefits, the optimum amount of fertilization was 105 kg/hm^2.