|
| 杂卤石对花生生长及养分吸收的影响 |
| Effect of polyhalite on peanut growth and nutrient uptake |
| 投稿时间：2018-10-26 |
| DOI：10.13254/j.jare.2018.0294 |
| 中文关键词: 棕壤，杂卤石，钾肥，花生，生物性状，养分 |
| 英文关键词: brown soil, polyhalite, potassium fertilizer, peanut, biological properties, nutrients |
| 基金项目:山东省重点研发计划项目（2016CYJS05A02，2017CXGC0306）；山东省发展计划项目（2013GNC11309） |
|
| 摘要点击次数: 2505 |
| 全文下载次数: 2194 |
| 中文摘要: |
| 为探讨杂卤石在北方典型棕壤上的应用效果，以花生为研究对象，于2015年2月至6月通过盆栽试验，以不施钾肥为对照，研究了杂卤石不同用量对花生荚果质量和花生秧干质量的影响，并比较了其与氯化钾、硫酸钾镁和硫酸钾对花生养分吸收及产量的影响差异。结果表明：在每千克土施用0~0.133 g K2O时，随着杂卤石施用量增加，花生荚果质量和花生秧干质量呈现出先增高后降低的趋势，其中每千克土施用0.089 g K2O时均最大，花生荚果质量较其他处理提高14.74%~48.08%，与每千克土壤施入0、0.022 g和0.044 g K2O的处理差异达显著水平；花生秧干质量较其他处理显著提高13.33%~49.08%。在每千克土施用0.089 gK2O的条件下，杂卤石处理花生荚果质量较氯化钾、硫酸钾镁和硫酸钾处理提高2.42%~12.32%，与氯化钾处理差异达显著水平，花生秧干质量较三种常规钾肥处理显著提高18.49%~25.44%。杂卤石处理植株氮含量较氯化钾、硫酸钾镁和硫酸钾处理平均显著提高1.92%~6.78%，植株钾含量较氯化钾、硫酸钾镁处理平均显著提高15.37%，钾肥表观利用率显著高于氯化钾和硫酸钾镁处理，钾肥农学利用率及钾肥偏生产力显著高于氯化钾处理，植株钙含量较氯化钾、硫酸钾镁和硫酸钾处理平均显著提高4.67%~9.86%，植株硫含量较氯化钾处理显著提高19.13%。研究表明，施用杂卤石能够提高花生荚果质量及花生秧干质量，并促进花生对氮、钾、钙和硫的吸收，其中杂卤石处理花生吸硫量提高可能是其花生荚果质量较氯化钾处理显著提高的主要原因，而吸钙量和吸氮量的提高可能是杂卤石处理花生秧干质量较氯化钾、硫酸钾镁和硫酸钾处理显著提高的主要原因。 |
| 英文摘要: |
| In order to explore the scientific application of polyhalite in brown soil, the effects of polyhalite on nutrient uptake and plant growth of peanut were studied by pot experiment. The results showed that within 0~0.133 g K2O·kg-1 soil, the yield of peanut increased first and then decreased with the increasing of the application rate of polyhalite. The peanut pod weight of 0.089 g K2O·kg-1 soil of polyhalite treatment increased 14.74%~48.08%, the difference was significant between the treatment of 0, 0.022 g and 0.044 g K2O·kg-1 soil. In addition, the total biomass of 0.089 g K2O·kg-1 soil polyhalite treatment increased significantly by 13.33%~49.08% compared with other treatments. Under the same K2O application rate, the pods weight of peanut treated with polyhalite was higher than that of potassium chloride, potassium magnesium sulfate and potassium sulfate, which increased by 2.42%~12.32%, and the difference was significant with potassium chloride. The total biomass of polyhalite treatment was significantly higher(18.49%~25.44%) than that of three kinds of conventional potassium fertilizer. Polyhalite could promote the absorption of nitrogen, potassium, calcium and sulfur in peanut. Compared with potassium chloride, potassium magnesium sulfate and potassium sulfate, polyhalite treatment increased average nitrogen content by 1.92%~6.78%, the potassium content of plant was 15.37% higher than that of potassium chloride and potassium magnesium sulfate treatments in an average. The apparent use effciency of polyhalite treatment was significantly higher than potassium chloride and potassium magnesium sulfate treatment, And the K agronomic efficiency and K partial factor productivity were significantly higher than potassium chloride treatment. The calcium content of plant increased by 4.67%~9.86% on average compared with potassium chloride, potassium magnesium sulfate and potassium sulfate treatment. The sulfur content of plant was 19.13% higher than that of potassium chloride. The application of polyhalite can increase the pod weight of peanut and total biomass of peanut and promote the absorption of nitrogen, potassium, calcium and sulfur in peanut. The increase of sulfur absorption in peanut treated with polyhalite treatment may be the main reason for significantly increasing the pod weight of peanut compared with potassium chloride treatment. The increase of calcium uptake and nitrogen uptake may be the main reason for the increase of total biomass of peanut of polyhalite treatment compared with the treatment of potassium chloride, potassium magnesium sulfate and potassium sulfate. |
| HTML
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
