| 贵州高海拔地区玉米高产中的钾肥效应研究 |
| |
| 引用本文： | 尹迪信,李裕荣,曹文才,肖桂兰.贵州高海拔地区玉米高产中的钾肥效应研究[J].土壤通报,2002,33(4):285-287. |
| |
| 作者姓名： | 尹迪信 李裕荣 曹文才 肖桂兰 |
| |
| 作者单位： | 1. 贵州省农业科学院农村发展中心,贵州,贵阳,550006
2. 贵州省威宁县农业局 |
| |
| 基金项目： | 贵州省平衡施肥示范项目,加拿大钾磷研究所(PPI/PPIC)和加拿大钾肥公司(CANPOTEX)资助 |
| |
| 摘 要： | 在贵州高海拔地区采用玉米高产栽培措施 ,获得了 12 .2 1t/hm2 的玉米产量 ,超过当地平均产量 2 .7倍 ,钾肥配施可增产玉米 0 .83～ 2 .5 8t/hm2 ,增幅 8.81～ 2 6.80 % ,施钾肥产投比可达 5 .1～ 6.1。施钾肥后玉米的品质有明显的改善 ,试验认为N∶K2 O比为 10 0 :75～ 113 ,即施氮 (N ) 2 0 0kg/hm2 ,施钾 (K2 O) 15 0～ 2 2 5kg/hm2 为宜。
|
| 关 键 词： | 高海拔地区 玉米高产 钾肥效应 |
| 文章编号： | 0564-3945(2002)04-0285-03 |
| 修稿时间： | 2001年3月2日 |
Effect of Potash Application on Corn Yield in High Altitude Areas of Guizhou Prorince |
| |
| YIN Di-xin,LI Yu-rong,CAO Wen-cai,XIAO Gui-lan.Effect of Potash Application on Corn Yield in High Altitude Areas of Guizhou Prorince[J].Chinese Journal of Soil Science,2002,33(4):285-287. |
| |
| Authors: | YIN Di-xin LI Yu-rong CAO Wen-cai XIAO Gui-lan |
| |
| Abstract: | Due to rich light energy and radiation and larg temperature gap between day and night in high altitude areas of Guizhou province,there is a higher potential for increasing crop yield. This experiment was conducted in the areas about 2200 m above sea level with technologies of high yield practices and balanced fertilization.The corn yield obtained was 2.7 times of the local production level. Potash application has positive effect for increasing of corn yield from 0.83 t/hm 2 (8.81%) to 2.58 t/hm 2 (26.8%). Return is 5.1-6.1 times. Corn quality was also improved. The best ratio of N to K 2O was 100:75～113. |
| |
| Keywords: | High-altitude areas High-yield corn Effect of potash fertilization |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
