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pubmed-article:14719277pubmed:abstractTextIndoor cultivation experiment and plot field experiment were conducted to study the effect of lignosulfonates on urea nitrogen transformation in soil and the mechanism of controlling nitrate pollution in vegetable. Results showed that lignosulfonates behaved inhibition effect on urea hydrolysis compared with the contrast treatment, the contents of remainder urea nitrogen treated with lignosulfonates was more than that of another kind of urease inhibitor hydroquinone in soil after 69 hours' cultivation. Lignosulfonates could reduce contents of nitrate in cabbage, it as well increase contents of vitamin C in a large degree, enhance the nitrate reductase activity, then accelerated nitrogen assimilation in plants. The urease activity was lower and contents of ammonium nitrogen in soil was larger after ingathering, lignosulfonates could keep nitrogen release slowly, and could be used as a kind of effective inhibitor to nitrogen fertilizer in the controlled-release fertilizers.lld:pubmed
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pubmed-article:14719277pubmed:authorpubmed-author:LiaoZongwenZlld:pubmed
pubmed-article:14719277pubmed:authorpubmed-author:WangDehanDlld:pubmed
pubmed-article:14719277pubmed:authorpubmed-author:PengJunjieJlld:pubmed
pubmed-article:14719277pubmed:authorpubmed-author:LinHuidongHlld:pubmed
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pubmed-article:14719277pubmed:volume24lld:pubmed
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pubmed-article:14719277pubmed:pagination141-5lld:pubmed
pubmed-article:14719277pubmed:dateRevised2006-11-15lld:pubmed
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pubmed-article:14719277pubmed:articleTitle[Effect of lignosulfonates on controlling of urea nitrogen transformation and nitrate accumulation in vegetable].lld:pubmed
pubmed-article:14719277pubmed:affiliationDepartment of Environmental Science and Engineering, South China Agricultural University, Guangzhou 510642, China.lld:pubmed
pubmed-article:14719277pubmed:publicationTypeJournal Articlelld:pubmed
pubmed-article:14719277pubmed:publicationTypeEnglish Abstractlld:pubmed
pubmed-article:14719277pubmed:publicationTypeResearch Support, Non-U.S. Gov'tlld:pubmed