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当前位置: 首页 > 文章 > 元江干热河谷火龙果生产系统年度养分分配研究 西南农业学报 2014,27 (4) 1582-1586
Position: Home > Articles > Annual Nutrient Distribution of Pitaya Production System in Dry-hot Valley of Yuanjiang Southwest China Journal of Agricultural Sciences 2014,27 (4) 1582-1586

元江干热河谷火龙果生产系统年度养分分配研究

作  者：
王正明;张彩仙;夏体渊;年耀萍;段宗颜
单  位：
云南省农业科学院;西南林业大学环境科学与工程学院;开远市卧龙谷武警8750部队农副业基地;昆明学院
关键词：
元江干热河谷;火龙果;生产系统;养分分布
摘  要：
通过对元江干热河谷坝区和山地火龙果不同种植地块单元进行土壤取样养分检测和养分年度管理投入状况调查,结合火龙果枝条和果实年度生物量进行年度养分需求和利用效率计算。结果表明,在火龙果年度生产过程中:年度养分投入为纯氮1500 kg/hm2、纯磷300 kg/hm2、纯钾1 575 kg/hm2;元江干热河谷火龙果生产土壤有机质含量、总氮、总磷、有效磷含量水平表现为2级、总钾和水解性有效氮含量表现为3级、有效钾含量为1级;养分利用效率氮磷钾分别为:7.07%、7.35%、13.4%,钾素的利用效率高于氮磷养分元素的利用效率、枝条对氮素的养分需求低于果实对氮素的养分需求;果实氮磷吸收量大于枝条氮磷吸收量,氮钾比枝条大于果实,氮磷比均<14,表现为氮限制型。
译  名：
Annual Nutrient Distribution of Pitaya Production System in Dry-hot Valley of Yuanjiang
作  者：
WANG Zheng-ming;ZHANG Cai-xian;XIA Ti-yuan;NIAN Yao-ping;DUAN Zong-yan;Agriculture and Avocation Base of 8750 Armed Police of Wolonggu of Kaiyuan;Yunnan Academy of Agricultural Sciences;Kunming University,College and Universities in Yunnan Province Engineering Research Center of Urban Modern Agriculture;Environmental Science and Engineering College,Sourthwest Forestry University;
关键词：
Dry-hot Valley of Yuanjiang;;Pitaya;;Production system;;Distribution of nutrient
摘  要：
In this paper,by detecting the soil nutrient and investigating the input condition of annual nutrient management of different planting land units of pitaya in barrage area and hilly area of Yuanjiang dry-hot valley,combining with the annual biomass of branches and fruit of pitaya,we did the calculation of the annual nutrient requirements and utilization efficiency. The results indicated that in the annual productive process of pitaya,the annual nutrient input of pure nitrogen,pure phosphorus and pure potassium was 1500,300 and 1575 kg /hm2respectively; the content of organic matter,total nitrogen,total phosphorus and effective phosphorus in soil producing pitaya was rated as Grade 2,while the content of total potassium and hydrolytic available nitrogen was rated as Grade 3,the content of available potassium was rated as Grade 1; the nutrient utilization efficiency of nitrogen,phosphorus and potassium was 7. 07 %,7. 35 %,and 13. 4 % respectively;the absorbed dose of the nitrogen and phosphorus from fruit was more than that from branch,the ratio of nitrogen to potassium in the branch was more than that in the fruit,the ratio of nitrogen to phosphorous less than 14,all above showed that pitaya belonged to nitrogen limiting type.

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