摘要
采用二次通用旋转组合设计,试验研究了氮、磷、钾3种常用肥料对幼龄期假鹊肾树生物量累积的影响,建立了施肥量与假鹊肾树生物量的回归方程。通过对试验结果进行方差分析,并对回归方程进行优化,得到假鹊肾树的较优施肥量和施肥配比。试验结果表明:当施肥量分别为氮肥(尿素,含N46.4%)20g/株,磷肥(过磷酸钙,含P2O512%)6g/株,钾肥(氯化钾,含K2O60%)13g/株时,假鹊肾树生长较好。氮磷钾元素(N:P2O5:K2O)配比约为1.2∶0.1∶1。
By using three fertilizer elements of nitrogen,phosphorus and potassium as experimental factors,uniform-precision rotatablecentral composite design was adopted to establish the relationship between the three fertilizer elements and the biomass of Streblusindicus.Through the analysis of variance on the test results and the optimization of the mathematical model,the optimal fertilization amount and fertilizer ratio onStreblusindicusplants were achieved.The results showedthat the optimal amounts of nitrogen(urea,46.4%N),phosphorus(calcium phosphate,12%P 2O 5)and potassium(potassium chloride,60%K 2O)were 20,6 and13 g/plant respectively,and the ratio of N,P 2O 5and K 2O was close to 1.2:0.1:1.
作者
包婷婷
郭昕
蔡传涛
黄春球
刘贵周
Bao Tingting;Guo Xin;Cai Chuantao;Huang Chunqiu;Liu Guizhou(Xishuangbanna Tropical Botanical Garden,Chinese Academy of Sciences,Mengla,Yunnan,666303,China;University of Chinese Academy of Sciences,Beijing,100049,China;Yunnan Plant Pharmaceutical Co. LTD,Kunming,Yunnan,650109,China)
出处
《绿色科技》
2019年第15期97-101,共5页
Journal of Green Science and Technology
基金
院-企合作项目“珍稀药用植物滑叶跌打(假鹊肾树)资源调查与人工繁育技术研究”
中国科学院“一三五”项目(编号:2017XTBG-F05)
关键词
假鹊肾树
二次通用旋转
氮肥
磷肥
钾肥
Streblusindicus
uniform-precision rotatablecentral composite design
nitrogen fertilization
phosphorus fertilization
potassium fertilization
