不同氮磷钾配比追肥对盆栽小苍兰生长发育的影响

Effects of Different Ratios of Nitrogen,Phosphorous and Potassium on the Growth and Development of Freesia refracta in Pot Experiment

从花芽开始分化到花莛抽出,用氮、磷、钾不同配比的营养液浇施小苍兰,观测株高、花期、花朵数、球重等指标,研究其对盆栽小苍兰生长发育的影响。结果表明:氮、磷、钾的适宜比例可促进植株的高生长,增加总花朵数,提高盆栽小苍兰的观赏性。氮、磷、钾浓度分别为100、100、100mg.L-1时,可促进植株的生长,有利于花枝的伸长;氮、磷、钾浓度分别为100、200、100 mg.L-1时,有利于总花朵数的增加;氮、磷、钾浓度分别为200、50、100 mg.L-1时,有利于新球球重的增加;氮、磷、钾浓度分别为100、501、00 mg.L-1时,有利于新球球径的增加。

From the bud differentiation to the pedicle appearance, the nutrient solutions with different ratios of N, P, and K were used to study their effects on the growth and development of Freesia refracta in pot experiment through observing the plant height, florescence, inflorescence flowers and bulb weight, etc. The results showed that suitable ratio of N, P, K improved the plant height, inflorescence flowers and ornamental characters. It stimulated the plant growth and the flower branch stretch when the concentration of N, P,and K was 100 mg·L^-1 ,100 mg·L^-1and 100 mg·L^-1 respectively; When the concentration of N, P, and K was 100 mg·L^-1 , 200 mg·L^-1and 100 mg·L^-1 respectively, the total inflorescence flowers increased; The new bulb weight was improved when the concentration of N, P, and K was 200 mg·L^-1 , 50 mg·L^-1 and 100 mg·L^-1 respectively; The concentration of 100 mg·L^-1 N, 50 mg·L^-1 P and 100mg·L^-1 K was favorable for the new bulb diameter increment.