摘要
以观叶植物朱蕉和观花植物月季为试材进行施肥最佳Ｎ、Ｐ、Ｋ比例的选择。分别设４个Ｎ、Ｐ、Ｋ比例，３个施肥量。朱蕉以Ｎ、Ｐ、Ｋ比例为１６－１６－１６的处理最佳，对促进朱蕉株高生长的最大效率比硝酸磷肥提高了４２％。硝酸磷肥及４种Ｎ、Ｐ、Ｋ比例（１６－１６－１６，２２－１０－１０，２０－１０－１１，２１－１１－１１）的最佳施肥量分别为４、２、２、４、２ｇ／盆·２０天。月季以Ｎ、Ｐ、Ｋ比例为１８－８－１７为最佳。硝酸磷肥及４种比例（１６－１６－１６，１５－１５－２１，１４－１１－１２，１８－８－１７）的最佳施肥量分别为８、１２、４、４ｇ／盆·２０天。且Ａ１处理（１６－１６－１６）可使土壤ｐＨ值由偏碱性变为微酸性，Ｂ４处理（１８－８－１７）随施肥量的增加使土壤ｐＨ值逐渐降低。
The experimental fertilizer of different N, P and K proportion used to foliage and flowering plants planted in pots were conducted for Cordyline fruticosa and Rosa chinensis cv. red hat. Four proportions for each cultivar containing principal component of NP fertilizer and three kinds of fertilizer amounts are designed. The results showed that the proportion A 1 ,16 16 16,is the best for Cordyline fruticosa, which gives the greatest efficiency of growth 42% higher in height than NP fertilizer full does. The most appropriate fertilizer amounts for NP fertilizer and four proportions are 8,12,4,4 and 4g/pot·20 days respectively. The proportion B 4 ,18 8 17,is the best for Rosa chinensis, and the most appropriate fertilizer amounts for NP fertilizer and four proportions are 4,2,2,4 and 2g/pot·20 days respectively. The proportion A 1 can change the pH value in soil from alkalinity to slight acidity. Proportion B 4 makes pH value in the growing medium dropped gradually with the increase of amount of the fertilizer dressed.
出处
《园艺学报》
CAS
CSCD
北大核心
1997年第1期71-74,共4页
Acta Horticulturae Sinica
关键词
盆花
配比施肥
朱蕉
月季
Pot flower
Proportional fertilization
Cordyline fruticosa
Rosa chinensis
