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玉米适应性广,是我国主要粮食作物之一,营养价值及附加值高。掌握玉米需肥特点,并合理的施肥,是玉米获得高产的重要措施。一、养分需要量玉米植株高大,对养分需求较多,一般每生产100公斤玉米籽粒,需吸收氮2.5—4公斤,磷1.1—1.60公斤,钾2.6—3.5公斤,氮:磷:钾约为2:1:1.5。需肥量以氮肥最多,钾次之,磷较少。一生需肥规律:氮肥最多,钾次之,磷较少。而
Wide adaptability of corn, is one of China’s major food crops, high nutritional value and added value. To master the characteristics of corn fertilizer, and fertilization, corn is an important measure to obtain high yield. First, nutrient requirements Corn plants tall, more nutrients, generally produce 100 kilograms of corn grains, the need to absorb nitrogen 2.5-4 kg, phosphorus 1.1-1.60 kg, potassium 2.6-3.5 kg, nitrogen: phosphorus: potassium is about 2: 1: 1.5. Fertilizer need to nitrogen up, followed by potassium, phosphorus less. Fertility law of life need: nitrogen fertilizer up, potassium followed, phosphorus less. and