据日本《农业与园艺》等杂志报导,近年来,日本广泛地应用和推广水稻深层追肥法,一般可增产百分之十至二十左右,高的达百分之四十。现将有关情况摘录如下:一、水稻深层追肥的特点1.提高水稻对肥料的利用率。据试验,以氮肥为例,不同施肥法,水稻对肥料利用率是:一般基肥的为百分之六十六点六;表层追肥的为百分之六十二点八;深层追肥的为百分之八十二。从水稻生长情况看,一般基肥和表层追肥的,肥效发挥快,持续时间短,造成水 According to Japan’s Agriculture and Horticulture magazine, in recent years, Japan has extensively applied and popularized the method of deep paddy dressing, which can generally increase its output by about 10 to 20 percent and up to 40 percent. Now the relevant excerpts are as follows: First, the characteristics of rice top dressing 1. To improve the utilization of rice on the fertilizer. According to the experiment, with nitrogen fertilizer as an example, different fertilization methods, the utilization rate of rice to the fertilizer is as follows: 66.6% for the basal fertilizer; 62.8% for the surface top dressing; and 100% for the top dressing Eighty two. From the rice growth situation, the general base fertilizer and surface top dressing, fertilizer to play fast, short duration, resulting in water