安徽农业大学学报2017，Vol.44Issue(1)：55-59,5.DOI:10.13610/j.cnki.1672-352x.20170208.016
不同氮磷钾配比缓释肥对夏蜡梅、美国蜡梅容器苗生长的影响
Effects of slow-release fertilizer with different N, P and K ratios on the growth of potted Sinocalycanthus chinensis and Calycanthus floridus seedlings
摘要
Abstract
In order to study the effect of slow-release fertilizer on the growth of one-year-old Sinocalycanthus chinensis and Calycanthusfloridus,four fertilizer ratios was set up with the same N application rate.The effect of different fertilizers and in different ratios on the growth and nutrient contents of potted Sinocalycanthus chinensis and Calycanthus floridus seedlings was explored.The results showed that the difference among various fertilizer treatments was significant.Compared with the traditional water soluble fertilizer,applying slow-release fertilizer significantly increased P and K nutrient contents of the whole plant,promoted the absorption of P,K,and balanced the nutritional level in Sinocalycanthus chinensis and Calycanthus floridus seedlings.The morphoiogical index and N,P,K contents in Calycanthusfloridus were higher than those in Sinocalycanthus chinensis under the same fertilization method with the same rate.Besides,when the ratio of N to P to K was 14:14:14 and the amount of N was 1000 mg per plant,the seedling growth ofSinocalycanthus chinensis and Calycanthusfloridus was good.The heights and the ground diameter of the Sinocalycanthus chinensis and Calycanthusfloridus seedlings were 23.50 and 30.40 cm,4.03 and 3.19 mm,respectively.The biomass amounts were 0.92 and 1.10 g per plant,respectively.The quality index reached 0.0927 and 0.0847,respectively.N,P and K contents were relatively high,which were 4.39,23.38,28.23 mg,4.37,23.38 and 30.20 mg per plant in Sinocalycanthus chinensis and Calycanthusfloridus,respectively.关键词
夏蜡梅/美国蜡梅/容器苗/缓释肥/水溶性肥/氮磷钾配比/苗木质量指数Key words
Sinocalycanthus chinensis/Calycanthus floridus/potted seedlings/slow-release fertilizer/water soluble fertilizer/N/P/K ratio/seedling quality index分类
农业科技引用本文复制引用
李小茹,芦建国,柏小娟..不同氮磷钾配比缓释肥对夏蜡梅、美国蜡梅容器苗生长的影响[J].安徽农业大学学报,2017,44(1):55-59,5.基金项目
江苏省林业三项工程[lysx(2012)12]资助. （2012）
