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为了研究有机无机复混水稻专用肥效果,2015年在晚稻上小区试验以不同用量处理基施,农民习惯用肥作对照;2016年在一季稻上小区试验以不同用量处理,按照处理750 kg/hm~2与等N量复合肥作对照,以基施和追施两种方式进行试验研究。结果表明:以基施效果最好,施用量为750 kg/hm~2产量最高;追施效果较差,低于750 kg/hm~2用量会造成减产。施用复混专用肥后,土壤pH值提高,有机质增多,碱解氮、速效磷和速效钾量增加,缓效钾量减少。试验表明:施用复混专用肥能够满足水稻一生所需养分供求,养分释放平衡,生长稳健,落色好,能够起到用地与养地相结合的效果。
In order to study the effects of special fertilizer for organic-inorganic compound rice, in 2015, the plot experiments on late rice were treated with different amounts of basic fertilizer and peasants were used as control. In 2016, hm ~ 2 and other N compound fertilizer as a control, both basal and topdressing methods for experimental study. The results showed that the best yield was achieved with the basal application rate of 750 kg / hm ~ 2 and the yield of 75 kg / hm ~ 2 was the highest. Application of compound fertilizer, soil pH increased, organic matter increased, alkaline hydrolysis of nitrogen, available phosphorus and available potassium increased slow-acting potassium decreased. The experiment shows that the compound fertilizer can meet the supply and demand of nutrient during the whole life of rice, balance the release of nutrients, grow steadily, drop off well, and can combine the effect of land and raising land.