| 杨树不同土壤立地条件施肥效应研究 |
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| 引用本文： | 何应同,王少元.杨树不同土壤立地条件施肥效应研究[J].湖北林业科技,1998(3):5-12. |
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| 作者姓名： | 何应同 王少元 |
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| 作者单位： | 湖北省林科院(郑红波)，湖北省嘉鱼县林业局(蒋茂江)，湖北省汉川市林业局(王重文)，湖北省仙桃市林业局(丁振志) |
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| 摘 要： | 为探索南方型杨树不同土壤立地条件集约栽培途径，在江汉平原选择有代表性的3种土壤立地，进行氮、磷、钾常规肥料不同施肥量及配比施肥试验（1991～1995）。结果表明：氮肥效应普遍显著；单施磷、钾肥效应均不好。平原粘湿土壤还呈显著负效应，只宜单施氮肥；平原冲积上、湖区沉积土立地均以氮＋磷混施效应最佳。优化施肥量：平原粘湿上按400kgN／hm2、平原冲积土按200kgN／hm2＋100kgP2O5／hm2、湖区沉积土按100kgN／hm2＋100kgP2O5／hm2，分别折算成尿素或过磷酸钙施用。5a提高蓄积生长量35％～80％，增值额0．7～1．1万元／hm2。
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| 关 键 词： | 南方型杨树 土壤立地 施肥效应 |
Study on the Effects of Fertilizer-Application in the Different Site Types of Poplar Tree's Soil |
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| Wang Shaoyuan,He Yingtong and Zheng Hongbe.Study on the Effects of Fertilizer-Application in the Different Site Types of Poplar Tree''s Soil[J].Hubei Forestry Science and Technology,1998(3):5-12. |
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| Authors: | Wang Shaoyuan He Yingtong and Zheng Hongbe |
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| Institution: | Wang Shaoyuan; He Yingtong and Zheng Hongbe |
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| Abstract: | A five consecutive years (1991~1995) test on fertilizer-application effects of the ordinary N,P,K fertilizers being fertilized in the frist ten days of the Mays of the four proceeding test years (1991~1994)With different application rates and proportions of N:P:K was made in the selected three site types of representative poplar tree's soils in Jianghan plain for exploration to the way of intensively-cultivating southern type of poplar tree under different site types of soils. The results are 1) Overall significant effects of single N fertilizer; 2) Overall bad or not better effects of single P or K fertilizer,even siginificantly negative effect in clay wet soil of the plain (Ⅰ site type). and only N fertilizer suitable 3) optimum effects of mixed N and P fertilizers in the plain's alluvial soil (Ⅱ) and sedimentary soil in the lake region (Ⅲ); (for Ⅰ. 4) the optimum application rate (total): 400kg N/hm2 for 1, 200 Kg N+ 100kg P2O5/hm2 for Ⅱ, 100 kg N+ 100kg P2O5/ hm2 for,Ⅲ;The practically applicated rate:reflected value of N into Urea,P2O5 into Calcium superohosphate,5) 35%~75% increase of increment for growing stock,equal to 7~11 thousand yuan/hm2 of vaule-added. |
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| Keywords: | southem type of poplar tree site type of soil fertilizer-application effect |
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