期刊论文

STUDIES ON THE CHARACTERISTICS OF N SUPPLY IN REDDISH YELLON PADDY SOIL Ⅰ.ORGANIC N COMPONENTS AND CORRELATION BETWEEN THE COMPONENTS AND N MINERALIZATION

中文

湖南农业大学学报(自然科学版)

1007-1032

1991

91

267-273

本校为第一机构

用6NC1加热水解土壤有机氮,对20个水稻土样品测定结果表明,红黄泥各组分氮在数量和分布上与其它士种无本质的差别;酸解氮占土壤全氮71.2％±5.1％,不同土壤间变异度很小,各组分中以氨基酸氮比例最大;酸解氮及氨基酸氮与盆栽的土壤矿化氮间有极显著的相关性。

Organic nitrogen from 20 paddy soil samples were hydrolyzed with hot 6N HCl and the results obtained were summarized as follows: The N com-ponents of Reddish yellow paddy soil didn′t differ markedly from those of other soil types.The content of acid-hydrolyzable N,accounting to 72.1%±5.1% of total soil N,varied little in different soil types. The ratio of soil amino acid N to total soil N was the highest among all organic N componests. There was a marked correlation between acid-hydrolyzable N or ami...