15Nisotope 第1页

Effect of prescribed burning on grassland nitrogen gross mineralization and nitrification Effects of continuous turnover of Astragalus sinicus on rice yield and N absorption, distribution and residue  in single-cropping rice regions of Fujian Province ESTIMATING EFFECT OF PLANTING SOYBEAN ON PROFIT AND LOSS OF SOIL NITROGEN Nitrogen Uptake and Utilization of Summer Maize Hybrids with Different Plant Heights