| 北方产区栗树氮肥用量研究 |
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| 引用本文： | 阮树安,盖素芬.北方产区栗树氮肥用量研究[J].辽宁林业科技,1998(4):38-40. |
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| 作者姓名： | 阮树安 盖素芬 |
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| 作者单位： | 辽宁省经济林研究所 |
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| 摘 要： | 试验证明栗树施Ｎ１５０ｋｇ／ｈｍ＾２效果极显著，每化顷产量增加９１８－１６５０ｋｇ，增产效果达到４９．２％－５２．３％，每化顷增加产值７３３５－１６５００元。为此，１５０ｋｇ／ｈｍ＾２纯Ｎ施用量可作为北方产区栗树施Ｎ指标，不同施Ｎ量与叶片中Ｎ，Ｐ含量的关系；在Ｎ０－Ｎ１５０处理之间二者呈显著正相关；在Ｎ０－Ｎ３００处理间，枝长，枝粗的增加与施Ｎ量有显著相关性。
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| 关 键 词： | 板栗树 营养 施N量 产量 营养因子 |
STUDY ON AMOUNT OF NITROGEN FERTILIZER APPLIED TO CHESTNUT IN NORTHERN CHINA |
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| Ruan Shuan,Gai Sufen,Chen Xizhong,Qu Hui.STUDY ON AMOUNT OF NITROGEN FERTILIZER APPLIED TO CHESTNUT IN NORTHERN CHINA[J].Liaoning Forestry Science and Technology,1998(4):38-40. |
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| Authors: | Ruan Shuan Gai Sufen Chen Xizhong Qu Hui |
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| Institution: | Liaoning Economic Forest Research Institute Dalian 110032 |
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| Abstract: | Proper amount of fertilizer is important to raise yield of chestnut with a low cost. Four kinds of amount of N-fertilizer were applied and effects of fertilizer on growth and yield were analyzed. The result shows that 150 kg/hm 2 N-fertilizer is preferable. Relation between N-fertilizer and N,P contents in the leaf were highly correlated between 0 and 150kg/hm 2 treatments; Amount of N-fertilizer and branch growth also correlated between 0 and 300 kg/hm 2 treatments; With the increasing of N-fertilizer amount, K content in the leaf changed little, which may be caused by absorption of the fruit when the experiment was done. |
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| Keywords: | chestnut nutrition nitrogen fertilizer application |
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