摘要
本研究采用"3414"不完全正交回归设计方案,分析了氮、磷、钾肥不同水平对苦豆子产量及苦参碱含量的影响。结果表明:1)N+P+K、N+P、N+K三种施肥组合与苦豆子产量相关性最大,单施N、P、K和P+K对其影响较小。2)复合施肥N、P2O5、K2O用量分别为134.85、91.0、59.9kg/hm2时苦豆子产量最高,约为2 016.75kg/hm2。3)综合考虑各药用部位苦参碱含量,施肥量的最优范围为N 125～180kg/hm2、P2O580～90kg/hm2、K2O10～45kg/hm2。
The＇3414＇ design was used to study the effects of different levels of nitrogen （N）, phosphorus（P）, and potassium（K） on the yield and matrine content of Sophora alopecuroides L. The results showed that： 1 ） three fertilization combinations （N ＋ P ＋ K, N ＋ P and N ＋ K） have the largest correlationships with the yield of Sophora alopecuroides L., single application of N, P, K, and P ＋ K have less influence; 2） according to the fertilization mathematic model, the optimum fertilization for N, P, K based on the largest yield which can reach to 2 016.75 kg/hm2 were 134.85,91.00 and 59.90 kg/hm2 respectively; 3） The optimum fertilization for N, P, K based on the matrine content of different parts should be defined as N 125- 180 kg/hm2, P2O5 80- 90 kg/hm2 ,K2O 10- 45 kg/hm2.
出处
《中国农业大学学报》
CAS
CSCD
北大核心
2013年第1期76-81,共6页
Journal of China Agricultural University
基金
国家科技重大专项项目(2009ZX09308-002)
国家公益性行业(农业)科研专项(200903001-2-3)
关键词
苦豆子
肥效
苦参碱
Sophora alopecuroides L.
fertilizer effect
matrine
