Effects of nitrogen, phosphorus ,and potassium on yield and matrine content of Sophora alopecuroides L. | 氮磷钾肥料对苦豆子产量和苦参碱含量的影响
2013
Chen Xiaoli, China Agricultural University, Beijing(China),College of Agronomy and Biotechnology | Guo Yuhai, China Agricultural University, Beijing(China),College of Agronomy and Biotechnology
Chino. 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。
Mostrar más [+] Menos [-]Inglés. 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.
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