| 海南岛香蕉园砖红壤养分限制因子的研究 |
| |
| 作者姓名： | 杨苞梅 林 电 翟立芳 吴多能 |
| |
| 作者单位： | 华南热带农业大学农学院 海南儋州571737 |
| |
| 基金项目： | 引进国际先进农业科技计划(948计划) |
| |
| 摘 要： | 针对海南岛香蕉园花岗岩发育的砖红壤的养分限制因子及其亏缺程度目前尚不清楚,笔者试验采用土壤养分状况系统研究法来开展研究。研究结果如下:(1)砖红壤对各养分的吸附固定能力大小顺序为:B>S>Cu>K>Zn;(2)高粱盆栽试验中养分亏缺程度为:N>Zn>B>Mg>S>K>Mo>Ca>Cu;(3)香蕉盆栽试验中养分亏缺程度为:N>Mg>Zn>K>Ca>S>Mo>B;(4)N是第一限制因子。这充分说明土壤肥力贫瘠,应当加强土壤所缺且香蕉所需的养分的施用,方能提高土壤肥力,从而实现香蕉的平衡施肥;同时证明土壤养分状况系统研究法确实可以很好地用来评价土壤肥力。
|
| 关 键 词： | 养分限制因子 砖红壤 系统研究法 香蕉园 |
Researches On Latosol nutrient limit factor of Banana garden in Hainan Island |
| |
| Authors: | Yang Bao mei Lin Dian Zhai Li fang Wu Duo neng |
| |
| Institution: | Agricultural college, SCUTA, Danzhou, Hainan, 571737 |
| |
| Abstract: | In view of Hainan Island banana garden granite latosol nutrient limiting factor and its owed lacks the degree is still not clearly now,the method of systematic study on soil nutrition is employed in this paper.The results indicated that:(1) Latosol to various nutrient adsorption fixed ability size order is:B>S>Cu>K>Zn;(2)In the sorghum pot experiment the nutrient owes lacks the degree is:N>Zn>B>Mg>S>K>Mo>Ca>Cu;(3)In the banana pot experiment the nutrient owes lacks the degree is:N>Mg>Zn>K>Ca>S>Mo>B;(4)N is the first limit factor.This fully explained that the soil fertility is barren,must strengthen the nutrient employment which the soil lacked and the banana needed,the side can enhance the soil fertility,thus the realization banana''s balance applies fertilizer;Simultaneously it proved that the soil nutrient condition system methodology may use for truly to appraise the soil fertility well. |
| |
| Keywords: | Limiting factor Latosol Systematic approach Banana garden |
|
| 点击此处可从《》浏览原始摘要信息 |
| 点击此处可从《》下载免费的PDF全文 |
|
