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过去研究报导,花生根部根瘤菌能固定氮素,施用氮素肥料不适量,就会影响根瘤菌固氮能力,影响土壤供氮最佳水平。随着研究工作的深入发展,氮素作为花生主要的养分已由许多研究材料报导指出了氮在花生生理中的重要性。为了摸清高产花生各生育期土壤供氮最佳水平和整株组织液中硝态氮最佳浓度,并从中寻找出美宜指标,以便更好的为花生高产的时候施用氮素化肥提供科学依据,我们于
Past studies have reported that peanut root rhizobia can fix nitrogen, the application of nitrogen fertilizer is not the right amount, it will affect the Rhizobium nitrogen fixation capacity, affecting the optimum level of soil nitrogen. With the deepening of the research work, nitrogen has been reported as the main nutrient of peanuts. Numerous research materials have reported the importance of nitrogen in peanut physiology. In order to find out the optimum level of soil nitrogen supply and the optimum concentration of nitrate nitrogen in the whole plant tissue of high-yielding peanut at each growth stage, and to find out the indicators of the United States in order to provide a scientific basis for the better application of nitrogenous fertilizer when the peanut yield is high We are here