The effects of different water and fertilizer on physiological characteristics, nutrient accumulation and distribution and water use efficiency and yield were studied in this trials. The trials aims to improve the oat production in rainfed area of Inner Mongolia. The results show that:
W_3 had highest chlorophyll content at different growth stages. Net photosynthetic rate increased with the water content. Transpiration rate has increased with moisture, W_2P_2 has highest water use efficiency in differe...