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为了做到合理施肥,提高肥料的利用率,充分发挥土壤对作物的增产潜力,必须先对肥料施用量进行估算,以便充分发挥单位数量肥料的增产效果。 肥料的估算方法分四步进行 1、实现作物计划产量所需该养分量(公斤)=作物计划产量指标(公斤)×形成100公斤经济产量所需该养分的量(公斤)×0.01 2、土壤能供给该养分量(公斤)=不施肥条件下该地块常年作物产量(公斤)×形成100公斤经济产量所需该养分的量(公斤)×0.01
In order to achieve rational fertilization, improve the utilization of fertilizers and give full play to the yield potential of soils for crops, fertilizer application rates must be estimated in order to give full play to the yield increase of fertilizer per unit quantity. Fertilizer estimation method is divided into four steps 1, the amount of nutrients required to achieve crop planning output (kg) = crop plan yield indicators (kg) × 100 kg of nutrients required to form the amount of nutrients (kg) × 0.01 2, soil The amount of nutrients that can be supplied (kg) = perennial crop yield (kg) without fertilization × the amount of nutrients (kg) required to produce 100 kg of economic output × 0.01