K肥对黑穗醋栗生长及结果的影响

Influence of potassium Fertilization on the Growth and Fruit of Black Currant

土壤施Ｋ和叶面喷施Ｋ肥表明，施Ｋ肥可以促进黑穗醋栗营养生长，增加百叶干重、百果重和产量，并且促进果实成熟，提高果实可溶性固形物含量。综合分析认为，黑穗醋栗适宜的Ｋ肥施用量为，土壤施Ｋ每株为０．１５～０．３ｋｇＫ２ＳＯ４，叶面喷施Ｋ２ＳＯ４的浓度为０．５％～１％，土壤施Ｋ适宜的时期为萌芽前。

Effects of potassium fertilization on the growth and fruit of black currant were studied. The results showed that applying K fertilizer increased vegetable growth,leaf dry weight, fruit weisht, yield and soluble solid content in fruit. Basied on the results, 0. 15～0. 3Kg K2SO4 per plant and 0. 5%～ 0. 1% K2SO4 solution were suggested for K fertiization of blackcurrant in soil and on leaf.