摘要
W942581 旱地保墒方法[刊,英]/Sharma,P.K.//Indian Farming.-1991,41(4).-21～24[WBTA,1993,10(3),2117]W942582 作物土壤保护栽培技术的有效性[刊,俄]/-1993,(1).-25～26[1993,(11/12),68]W942583 用小土柱鉴定细砂壤土上冬小麦少耕系统的土壤物理状况[刊,英]/Carter,M.R.//Canadi-an Journal of Soil Science.-1992,72(4).
