| 菜地土壤酸化原因及其对番茄生产的影响 |
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| 引用本文： | 朱本岳.菜地土壤酸化原因及其对番茄生产的影响[J].浙江大学学报(农业与生命科学版),1989(3). |
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| 作者姓名： | 朱本岳 |
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| 作者单位： | 浙江农业大学土壤农化系 |
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| 摘 要： | 通过菜地土壤考查和番茄的田间及盆栽试验,明确了杭州市郊菜地土壤酸化的主因是长期偏施大量生理酸性肥料,特别是硫酸铵.而目前降水中的致酸离子的影响,似乎还不严整.在亩施15kg氮的情况下,硫酸铵处理的土壤pH较对照下降0.59,交换姓酸量增加1.23me/100g土,影响显著;尿素处理的土壤pH下降0.18,交换性酸量增加0.21me/100g土,影响轻微.当土壤pF降至5.35以下时,土壤交换性酸度,特别是交换性铝量剧增,盐基饱和度迅速下降,此时番茄根系发育差,产量和品质均明显下降.酸化的菜地土壤,其交换性酸含量虽高,但以交换性H~ 为主.施用城市生活垃圾肥或石灰石粉即可校正土壤酸度.
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| 关 键 词： | 菜土园 土壤酸化 肥料 番茄 防治 |
The Cause of Soil Acidification in Vegetable Farm and Its Effect on Tomato Plant |
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| Zhu Benyue.The Cause of Soil Acidification in Vegetable Farm and Its Effect on Tomato Plant[J].Journal of Zhejiang University(Agriculture & Life Sciences),1989(3). |
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| Authors: | Zhu Benyue |
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| Institution: | Zhejiang Agricultural University |
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| Abstract: | Field investigation and field/pot experiments were conducted in the vegetable farm around Hangzhou city, to study the course of acidification of soil, as well as its effect on tomato plant. It was found that the primary cause for the farm soil to become acidified was the heavy applications of physiological acid fertilizers, such as (NH4)2SO4, NH4Cl, K2SO4, etc. in the long run. The yield as well as the quality of the tomato fruit grown on such acidified soil was distinctly lowered as compared with those grown on the normal soil plot. It is suggested that the acidification of vegetable farm soil may be easily prevented by frequent application of limestone powder or refuse manure |
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| Keywords: | vegetable farm soil acidification fertilizer tomato Prevent |
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