施用钾肥对油茶果实性状的影响

Effects of Fertilizer K on the Fruit Characters of Camellia oleifera

为了明确钾肥对油茶(Camellia oleifera Abel.)果实性状的影响,本文以长林27号为材料开展试验。结果表明,钾肥用量对油茶果茎和单果质量有提高但是影响不显著。钾肥有利于油茶出籽率和出仁率的提高,180g/株钾肥处理下出籽率和出仁率均达到了最高,分别比对照提高了16.5%、15.2%。钾肥处理对种仁含油率影响不显著,但是能够显著提高鲜果的含油率。180g/株钾肥处理下,鲜果含油率达到最高。综合考虑钾肥对油茶果实性状等指标的影响,最适合油茶果实生长的钾肥用量为180g/株。

In order to understand the effect of potassium（K） fertilizer on the fruit characters of Camellia oilfera, Changlin No. 7 as materials were tested. The results show that the stalk and fruit of Camellia oleifera are increased after fertili- zing K but has no significant effect. The K can increase the seed yield rete and seed kernel rate, and the two rates are the highest after fertilizing K 180 g per tree, which increased by 16.5% and 15.2% comparing with the CK. K treatment has no significant effect on the kernel oil rate, but can significantly improve fresh fruit oil rate. Under the treatment of K180 g per tree, the rate of fresh fruit is the highest. Considering the effect of K fertilizer on the characters of Camellia oleif- era, the most suitable amount of K fertilizer is 180 g per tree.