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Position: Home > Articles > Effect of Potato With Balanced Fertilization In Zhijing County of Guizhou Prorince Chinese Agricultural Science Bulletin 2003,19 (5) 143-145

马铃薯平衡施肥中的钾素效应研究

作  者:
陆引罡
单  位:
贵州大学农学院农学系
关键词:
高海拔地区;平衡施肥;马铃薯高产;钾素效应
摘  要:
在贵州高海拔地区织金县采用马铃薯高产栽培技术和平衡施肥技术 ,马铃薯产量为1 4 91t hm2 ,超过当地平均产量 1 5倍 ,钾肥配施可增产马铃薯 1 0~ 2 5t hm2 ,增幅 8 0 6 %~2 0 6 3% ,施钾产投比可达 2 0~ 3 5。施钾肥后马铃薯薯块重量增加 1 9 2 % ,增产以增加薯块重量为主 ,马铃薯品质有较大改善。试验认为 ,高产高效施肥的N∶K2 O比为 1 0 0∶ (95~ 1 4 0 )为宜 ,即施氮 (N) 1 0 5kg hm2 ,施钾 (K2 O) 1 0 0~ 1 5 0kg hm2 为宜。
译  名:
Effect of Potato With Balanced Fertilization In Zhijing County of Guizhou Prorince
作  者:
Lu Yingang(Department Agronomy of Agricultural College,Guizhou University,Guiyang 550025)
关键词:
High-altitude areas; Balanced fertilization; High-yield potato; Effect of potash fertilization
摘  要:
Due to rich light energy and radiation and large 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 1350 m above sea level with technologies of high yield practices and balanced fertilization The potato yield obtained was 1 5 times of the local production level Potash application has positive effect for increasing of potato yield from 1 0t/hm 2 (8 06%)to 2 5t/hm 2 (20 63%) Return is 2 0~3 5 times The weight of potato tuber increased 19 2% The increase production lied on improved weight of potato tuber Corn quality was also improved The best ratio of N toK 2 Owas 100:95~140

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