摘要
本文报道了丘陵红壤开垦种植牧草1~2年后的土壤微生物类群的分布状况及消长规律。种草初期,微生物数量逐年增加,土壤有机质及氮含量开垦第一年减少,以后呈回升趋势。
The distribution and growth and decline regularity of the micropopulationwere studied in the hilly red soil on which grasses were planted for 1~2 yea-rs.During the initial stage after planting,the amount of microorganism incr-eased year by year.The content of soil organic matter and nitrogen decreasedin the first year,then began to increase.
出处
《江西农业大学学报》
CAS
CSCD
1991年第6期230-236,共7页
Acta Agriculturae Universitatis Jiangxiensis