| 不同添加材料对化肥中磷素释放和扩散的影响 |
| |
| 引用本文： | 杨 莹,杨雪芹,关文玲. 不同添加材料对化肥中磷素释放和扩散的影响[J]. 西北农林科技大学学报(自然科学版), 2005, 33(6): 84-86,92 |
| |
| 作者姓名： | 杨 莹 杨雪芹 关文玲 |
| |
| 作者单位： | 西北农林科技大学,资源环境学院,陕西,杨凌,712100 |
| |
| 基金项目： | 陕西省自然科学基金项目(2003C106) |
| |
| 摘 要： | 采用不同的添加材料与化学磷肥混合,通过室内扩散试验,研究不同添加材料对化学肥料中磷素释放和扩散的影响。结果发现,选用的5种材料(沸石、胡敏酸、聚丙烯酰胺、柠檬酸、羧甲基纤维素)均能不同程度地提高肥料磷在土壤中的有效性。与对照相比,柠檬酸在培养初期(1周)能够促进化学磷肥的溶解和扩散,可使施肥点和外围的速效磷含量升高约2.7倍;胡敏酸、PAM在培养4周后能提高施肥点的速效磷,而且使最外层(7～9cm)的速效磷也有较明显的增加,分别较对照提高75%和68%。
|
| 关 键 词： | 磷肥 肥料添加材料 磷素扩散 磷素释放 |
| 文章编号： | 1671-9387(2005)06-0084-03 |
| 收稿时间： | 2004-09-16 |
| 修稿时间： | 2004-09-16 |
Effect of different amendments on the release and diffusion of phosphorus from chemical fertilizer |
| |
| YANG Ying,YANG Xue-qin,GUAN Wen-ling,LIU Jun-ling,WANG Xu-dong. Effect of different amendments on the release and diffusion of phosphorus from chemical fertilizer[J]. Journal of Northwest A&F University（Natural Science Edition）, 2005, 33(6): 84-86,92 |
| |
| Authors: | YANG Ying YANG Xue-qin GUAN Wen-ling LIU Jun-ling WANG Xu-dong |
| |
| Affiliation: | (College of Resource and Environment,Northwest Sci-Tech University of Agriculture and Forestry,Yangling,Shaanxi 712100,China) |
| |
| Abstract: | In this paper,different kinds of amendments such as Zeolite,Humic acid,PAM,Citric acid and Carboxy methyl were used for mixing with phosphate.The release and diffusion of phosphorus in soil were studied by incubation experiment.The results showed that all the amendments could increase the availability of phosphorus from chemical fertilizer in soil.Citric acid could increase the sdution and diffusion of phosphorus of chemical fertilizer in the first week by 2.7 times.After 4 weeks incubation,humic acid and PAM could increase the concentration of available phosphorus at the fertilization point and the available P increased by 75% and 68% in outer layer (7-9 cm) compared with the control. |
| |
| Keywords: | phosphate fertilizer amendment phosphorous diffusion and release |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《西北农林科技大学学报(自然科学版)》浏览原始摘要信息 |
|
点击此处可从《西北农林科技大学学报(自然科学版)》下载全文 |
|
