| 氮、磷、钾配比施肥对辣木生长及叶片养分吸收的影响 |
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| 引用本文： | 张敏,杨浩瑜,包立,汪泰,张乃明.氮、磷、钾配比施肥对辣木生长及叶片养分吸收的影响[J].林业科学研究,2019,32(5):114-120. |
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| 作者姓名： | 张敏 杨浩瑜 包立 汪泰 张乃明 |
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| 作者单位： | 云南农业大学资源与环境学院, 云南 昆明 650201;云南省土壤培肥与污染修复工程实验室, 云南 昆明 650201,云南农业大学资源与环境学院, 云南 昆明 650201;云南省土壤培肥与污染修复工程实验室, 云南 昆明 650201,云南农业大学资源与环境学院, 云南 昆明 650201;云南省土壤培肥与污染修复工程实验室, 云南 昆明 650201,云南农业大学资源与环境学院, 云南 昆明 650201;云南省土壤培肥与污染修复工程实验室, 云南 昆明 650201,云南省土壤培肥与污染修复工程实验室, 云南 昆明 650201 |
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| 基金项目： | 云南省对外科技合作计划-院士专家工作站（2015IC022）；云南省科技创新人才计划项目（2015HC018） |
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| 摘 要： | 目的]为明确辣木生长对养分的需求及叶片养分吸收状况。方法]研究采取田间小区实验,设置N_(80)、N_(80)P_(20)、N_(80)K_(40)、P_(20)K_(40)、N_(80)P_(20)K_(40)、N_(60)P_(20)K_(60)和不施肥对照7个处理,测定分析不同氮、磷、钾配比施肥对辣木生长及叶片养分吸收的影响。结果]不同氮、磷、钾配比施肥处理下,辣木生长速度先快后缓慢,处理90 d后株高、冠幅和鲜叶生物量的最高值及地径的次高值均出现在N_(80)中,N_(60)P_(20)K_(60)的株高、地径及N_(80)K_(40)的鲜叶生物量仅次于N_(80)处理;不同氮、磷、钾配比施肥均促进了辣木叶片中全氮、全磷含量的累积,但降低了全钾含量;除N_(80)外,其它处理叶片叶绿素含量均低于CK,高氮处理的叶绿素含量均高于P_(20)K_(40)和N_(60)P_(20)K_(60),N_(80)P_(20)高于N_(80)K_(40)。结论]各元素对辣木生长影响大小为NKP,对叶片中叶绿素含量影响大小为NPK,叶片中营养元素含量大小为NKP。综合试验结果中辣木主要生长指标的生长及叶片养分吸收情况,配比施肥最优处理为N_(80),且该施肥处理主要适用于辣木幼龄及速生生长阶段。
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| 关 键 词： | 辣木 配比施肥 养分吸收 生长状况 |
| 收稿时间： | 2019/2/4 0:00:00 |
| 修稿时间： | 2019/4/10 0:00:00 |
Effects of Nitrogen, Phosphorus and Potassium Ratio Fertilization on Growth and Leaf Nutrient Absorption of Moringa oleifera |
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| ZHANG Min,YANG Hao-yu,BAO li,WANG Tai and ZHANG Nai-ming.Effects of Nitrogen, Phosphorus and Potassium Ratio Fertilization on Growth and Leaf Nutrient Absorption of Moringa oleifera[J].Forest Research,2019,32(5):114-120. |
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| Authors: | ZHANG Min YANG Hao-yu BAO li WANG Tai and ZHANG Nai-ming |
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| Institution: | College of Resources and Environment Science, Yunnan Agricultural University, Kunming 650201, Yunnan, China;Yunnan Engineering Laboratory of Soil Fertility and Pollution Remediation, Kunming 650201, Yunnan, China,College of Resources and Environment Science, Yunnan Agricultural University, Kunming 650201, Yunnan, China;Yunnan Engineering Laboratory of Soil Fertility and Pollution Remediation, Kunming 650201, Yunnan, China,College of Resources and Environment Science, Yunnan Agricultural University, Kunming 650201, Yunnan, China;Yunnan Engineering Laboratory of Soil Fertility and Pollution Remediation, Kunming 650201, Yunnan, China,College of Resources and Environment Science, Yunnan Agricultural University, Kunming 650201, Yunnan, China;Yunnan Engineering Laboratory of Soil Fertility and Pollution Remediation, Kunming 650201, Yunnan, China and Yunnan Engineering Laboratory of Soil Fertility and Pollution Remediation, Kunming 650201, Yunnan, China |
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| Abstract: | Objective] To determine the nutrient requirement and leaf nutrient uptake of Moringa oleifera.Method] Field experiment was carried out, and seven treatments, i.e. N80, N80P20, N80K40, P20K40, N80P20K40, N60P20K60 and no fertilization (CK) were set up to analyze and confirm the effects of the different nitrogen, phosphorus and potassium ratio on growth and leaf nutrient absorption of M. oleifera.Result] Under different ratio of nitrogen, phosphorus and potash fertilizer treatments, M. oleifera grew quickly at the beginning and then grew slowly. The highest value of plant height, crown width and fresh leaf biomass and the second highest value of ground diameter appeared in N80. The plant height and ground diameter increment under N60P20K60 treatment, and fresh leaf biomass under N80K40 treatment were second only to N80 treatment. Different nitrogen, phosphorus and potassium ratio fertilization promoted the accumulation of total nitrogen and total phosphorus in M. oleifera leaves, but reduced the total potassium content. Except for N80, the chlorophyll content in leaves under other treatments were lower than that of the CK, and the chlorophyll content of high-nitrogen treatments were higher than that of P20K40 and N60P20K60, and the chlorophyll content under N80P20 treatment was higher than that under N80K40 treatment.Conclusion] The impact of nutrient elements on the growth of M. oleifera follows the order of N>K>P, the impact on chlorophyll content in M. oleifera leaves follows the order of N > P > K, and the nutrient element content in M. oleifera leaves follows the order of N > K > P. According to the results of the main growth indicators of M. oleifera and the nutrient absorption of leaves, the optimal fertilization ratio is the combination of N80, and the fertilization treatment is suitable for M. oleifera in young and fast-growing stages. |
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| Keywords: | Moringa oleifera proportioning fertilization nutrient absorption growth |
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