| 沿江高沙土地区春玉米补钾技术研究 |
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| 引用本文： | 徐建平,顾国华,马祥建,姜永平.沿江高沙土地区春玉米补钾技术研究[J].金陵科技学院学报,2001,17(4):29-31. |
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| 作者姓名： | 徐建平 顾国华 马祥建 姜永平 |
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| 作者单位： | 江苏沿江地区农科所 |
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| 基金项目： | 江苏省农科院“高沙土区三熟制地膜直播玉米高产施肥技术研究”基金资助 |
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| 摘 要： | 根据沿江高沙土地区土壤沙、漏、板、瘦保水保肥能力差的特点 ,打破春玉米钾肥早期一次施下的理论1 ] ,通过定期跟踪监测土壤速效钾变化 ,在保持原有钾肥用量水平前提下 ,将传统春玉米钾肥施用方法改变为基肥、拔节肥、穗肥三次施用 ,比例为 5∶3∶2 ,玉米粒重显著提高 ,产量增加 1 0 2 5 %。
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| 关 键 词： | 沿江 高沙土 春玉米 补钾技术 |
| 文章编号： | 1008-1895(2001)04-0029-03 |
| 修稿时间： | 2001年6月25日 |
Technique of Supplementary K Fertilizer for Spring Corn in Reparian Region with High Sand Soil |
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| XU Jian ping,GU Guo hua,MA Xiang jian,JIANG Yong ping.Technique of Supplementary K Fertilizer for Spring Corn in Reparian Region with High Sand Soil[J].Journal of Jinling Institute of Technology,2001,17(4):29-31. |
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| Authors: | XU Jian ping GU Guo hua MA Xiang jian JIANG Yong ping |
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| Abstract: | The high sand soil of reparian region has the characteristics of poor ability to preserve water and fertilizer. The paper breaks out the theory that the all K fertilizers for spring corn are applied only once at the early stage. Under the prerequistie of same applied amount of K fertilizer, it is divided into 3 groups, timely, grounded, elongation and fertilizer for head sprouting, to be applied with the proportion of 5 to 3 to 2. By this method, the grain weight of corn is dominantly raised, and the yield is increased by 10 25 percent. |
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| Keywords: | reparian high sand soil spring corn technique of supplementary K fertilizer |
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