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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Nitrates, agriculture and environment
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Nitrates, agriculture and environment

机译：硝酸盐，农业与环境

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Nitrogen is a very important nutrient element in agriculture. In soils it occurs in organic and inorganic forms. Inorganic N occurs primarily as nitrate in arable soils. Nitrate is subject to various processes such as plant uptake, leaching from soils among others. Leaching of nitrates from soils is a global phenomenon. Although a lot of attention has been paid world over on this phenomenon, its importance is being felt recently in developing countries like India where the emphasis has been on the problems related to increased food production from limited cultivable land. However, maintaining delicate agro-ecosystems in order to achieve sustainable agricultural productivity while protecting the environment has attracted the attention of scientists and policy makers. This article discusses the phenomenon of nitrate leaching from soils, its impact on man and animals and means to minimize the leaching. Nitrate leaching could be a major threat to environment in different agricultural situations. By proper management of agricultural systems, these leaching losses could be reduced and pollution problems can be minimized. [References: 88]
机译：氮是农业中非常重要的营养元素。在土壤中以有机和无机形式存在。无机氮主要以硝酸盐形式存在于耕地中。硝酸盐会经历各种过程，例如植物吸收，从土壤中浸出等。从土壤中渗出硝酸盐是一种全球现象。尽管全世界已对该现象进行了广泛的关注，但最近在像印度这样的发展中国家中人们就意识到了这一现象的重要性，在这些国家中，人们一直侧重于与有限耕地增加粮食生产有关的问题。但是，维护脆弱的农业生态系统以实现可持续的农业生产力，同时保护环境吸引了科学家和政策制定者的注意。本文讨论了硝酸盐从土壤中浸出的现象，其对人和动物的影响以及减少浸出的方法。在不同的农业状况下，硝酸盐浸出可能是对环境的主要威胁。通过对农业系统的适当管理，可以减少这些浸出损失，并使污染问题最小化。 [参考：88]

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