【摘要】 利用15N稳定性同位素进行水稻、烤烟的盆栽与田间试验 ,结果表明 ,贵州黄壤的供氮能力可以用“A”值表示 ,不同海拔高度的土壤养分校正系数在 0 2～ 0 3之间。更多还原

【Abstract】 We utilized 15 N stable isotope to carry out an experiment on rice and flue-cured tobacco with pot culture and field cultivation The results showed that nitrogenous supply ability of yellow soil in Guizhou Province could be indicated by "A" The nutrient rectified coefficient of the soil in different elevations is 0 2-0 3更多还原