化肥专家忠告农民朋友:切勿盲目购买复合肥,现在市场上的所谓“复合肥”大多是复混肥,要用最好自己配。理由如下: 农作物并不时时“喜欢”复合肥。农作物不同的生长时期需要不同的养分, 不同的养分对农作物所起的作用不同。以农作物所需要的三种最基本的养分而言:磷——长根、茎、花、果,适宜于作物生长的早期、中期、后期施用;钾——壮茎、杆,抗倒伏,宜在作物生长中期施用;氮——能使枝繁叶茂,便于作物吸收太阳精华起光合作用,宜于作物生长前期中期施用。如果按作物不同生长阶段施用合适的化肥,便能投作物所好, 作物生长就旺盛。如果早期施用复合肥,作物只吸收它所需要的磷,把氮、钾置之不顾,丢在一边,这就造成氮、钾的白白浪费。有经验的老农懂得根据作物不同的生长期施用不同养分的肥料,决不“胡子眉毛一把抓”,一味施用复合肥就完事大吉。他们比别人棋高一着,既 Fertilizer experts advise farmers: Do not blindly purchase compound fertilizers. The so-called “compound fertilizers” on the market are mostly compound fertilizers, and they must be used in the best way. The reasons are as follows: Crops do not always “like” compound fertilizers. Different crops need different nutrients during different growth periods, and different nutrients have different effects on crops. In terms of the three basic nutrients needed for crops: Phosphorus - long roots, stems, flowers, and fruit, suitable for early, medium, and late crop growth; Potassium - strong stems, rods, lodging resistance, suitable Applied in the middle of crop growth; nitrogen - can make leaves flourish, easy for crops to absorb sun light from photosynthesis, suitable for crops in the early stage of growth. If appropriate fertilizers are applied at different stages of crop growth, crops can be grown well and crops will thrive. If early application of compound fertilizer, crops only absorb the phosphorus it needs, regardless of nitrogen, potassium, regardless of the left side, which results in the waste of nitrogen and potassium. The experienced old farmer knows how to apply fertilizers with different nutrients according to different growth stages of the crops. They are higher than others, both