| 黑枣苗氮磷营养及经济施肥的研究 |
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| 引用本文： | 左永忠,刘滨.黑枣苗氮磷营养及经济施肥的研究[J].经济林研究,1994,12(1):37-40. |
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| 作者姓名： | 左永忠 刘滨 |
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| 作者单位： | 河北林学院，河北省保定地区林科所，衡水市林业局 |
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| 摘 要： | 试验采用苗床施肥，结果表明，肥料用量适宜促进营养元素吸收利用，７～８月份苗木叶片含氮量３．５％～４．０％、含磷量０．２％～０．３％、含钾量１．０％或稍高时，苗木生长良好。在该试验条件下，施Ｐ２Ｏ５１２０ｋｇ／ｈａ、施纯氮１８０ｋｇ／ｈａ左右，幼苗产量、质量及施肥利润均达到较高水平。
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| 关 键 词： | 黑枣 施肥 磷 苗木 枣 |
DATEPLUM PERSIMMON SEEDLINGS N AND P REQUIREMENT AND ECONOMIC FERTIL
IZATION |
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| ZUO YONGZHONG,ZHU JUNRU.LIU BINForiestry College of Hebei Province,Baoding. Hebei Forestry Institute of Baoding Prefecture,Hebei.DATEPLUM PERSIMMON SEEDLINGS N AND P REQUIREMENT AND ECONOMIC FERTIL
IZATION[J].Economic Forest Researches,1994,12(1):37-40. |
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| Authors: | ZUO YONGZHONG ZHU JUNRULIU BINForiestry College of Hebei Province Baoding Hebei Forestry Institute of Baoding Prefecture Hebei |
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| Institution: | ZUO YONGZHONG,ZHU JUNRU.LIU BINForiestry College of Hebei Province,Baoding. Hebei 071000Forestry Institute of Baoding Prefecture,Hebei |
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| Abstract: | The method of
nursery bed fertilization was applied in thetest.Six treatments that were repeated 3 times were
arranged. Resultsshow that proper dosage of fertilizers is essentlal for the seedlings touptake
the nutrient elements. When the content of N,P. K in the leafin July and August is
3.5%-4.0%,0.2%-0.3%, and 1.0%or above,rspectively, the seedlings tend to grow well.Under
such test condition,the optimal dosage of N and P2O5 is per ha 180kg and 120kgrespectively. |
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| Keywords: | Diospyros lotus N and P nutrition Fcrtilizer application |
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