菊花氮钾肥效及配方筛选研究

Studies on N and K Fertilization Effect and Fertilizer Formula Screen for Dendranthema morifolium (Ramat.) Tzvel.

利用盆栽试验,研究了一种小菊氮钾肥效,并筛选了适宜的氮钾肥料配方。结果表明,适宜的氮用量有利于株高、一次分枝长度、总开花数和植株干重四项数据的增加,增加钾肥用量有利于开花数的增加及干物质的积累,高钾低氮有利于花期提前。以小菊株高、一次分枝长度和植株干重为目标时,进行统计分析,得到盆栽(每盆装基质10kg)小菊的氮(N)和钾(K2O)最佳施肥量分别是为0.47和0.40g/kg基质。

Effect of N and K fertilization on one smallinflorescences growth and suitable fertilizer formula of N and K nutrients ratio for the flower were carried out through pot experiment. Our results showed that the appropriate nitrogen amount is beneficial to height, first branch length, flower numbers, dry weight of Dendranthema morifolium （Ramat.） Tzvel. Increasing potassium amount apply is helpful to flower numbers and dry weight. The high amount of potassium amount and the low amount of nitrogen amount could make early flowering. Regarding length of first branch, plant height and dry weight as the target, it was showed that the recommended fertilizer amount of N and K2O for pot application for the smallinflorescence was 0.47 and 0.40 g/kg （each pot filled with 10 kg substrate）.