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前言根据羣众“因土种植,看苗施肥”的经验,在肥力高的土壤上,选用耐肥强的品种,而在肥力低的土壤上,则选用耐肥弱的品种,前者施肥量高,后者施肥量低。农民这种传统的栽培习惯对我国农业生产获得大面积较好的收成起了很大作用。
Preface According to the masses’ experience of planting soil and looking at seedling fertilizers, the author selects strong-resistant varieties on highly fertile soils and weak-tolerant varieties on low-fertility soils. The former has a high fertilization rate , The latter low amount of fertilizer. This traditional cultivation practice of peasants played a great role in obtaining a large-area and good harvest of agricultural production in our country.