[1]GAO Zhu,WU Jian-rong,MA Huan-cheng.Effects of Fertilization on the Growth of Two-year Old Stand of Ceiba pentandra in Dry-hot Valley of Honghe River[J].Research of Soil and Water Conservation,2012,19(02):95-100.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
19
Number of periods:
2012 02
Page number:
95-100
Column:
Public date:
2012-04-20
- Title:
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Effects of Fertilization on the Growth of Two-year Old Stand of Ceiba pentandra in Dry-hot Valley of Honghe River
- Author(s):
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GAO Zhu1,2, WU Jian-rong1, MA Huan-cheng1
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1. Key Laboratory of Biodiversity Conservation of Southwest China of State Forestry Administration, Southwest Forestry University, Kunming 650224, China;
2. Institute of Biological Resources, Jiangxi Academy of Sciences, Nanchang 330029, China
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- Keywords:
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Ceiba pentandra; growth of young plantation; fertilizer rate; effect of fertilization
- CLC:
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S725.5
- DOI:
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- Abstract:
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To understand the impact of fertilization with different types of the amounts of fertilizers on survival rate and growth of two-year old stand of Ceiba pentandra,the single-factor and the N,P,K three factors L9 (34) orthogonal design method were used.The results showed that:(1) it caused the average of plantation survival rate fell by 6.92% or more with fertilizers,there were a significant difference between treatment of urea with 200g per plant and control;(2) the treatments of strain with 400 g per plant or urea with 300g per plant were significant different from control in height increment and diameter increment,but the groups with 100g per plant N+100g per plant P+50 g per plant K and 200g per plant N+100g per plant P+150g per plant K had extremely significant difference relative to the control in height,diameter,and crown.It’s significant difference in branches increment between treatments and control.The remaining groups were higher than treatment of strain with 400g per plant and urea with 300g per plant except that 300g per plant N+200g per plant P+150g per plant K combination was less than treatment of urea with 300g per plant in fertilizer factor;(3) it has significance on tree growth by P fertilizer through range contrast,but with better growth on diameter and crown by N fertilizer.It was better increment in branches by K fertilizer than P fertilizer and N fertilizer in 1-year old trees,but P fertilizer has the better effect than K,N fertilizer in 2-year trees;(4) effect of the combination of N,P,K fertilizers was significantly higher than single-factor,fertilizer factor can be used to measure fertilization on the growth speed of stand of Ceiba pentandra.As a result,it is better for Ceiba pentandra forest culture with no-fertilizers,especially not fertilizer urea.It has significant economic benefits with topdressing in young Ceiba pentandra plantation,which can be used the combinations of 100g per plant N+100g per plant P+100g per plant K or 200g per plant N+100g per plant P+150g per plant K,and can be used with 400g per plant strain or 300g per plant urea in 1~2 years old forest.