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针对大小麦不同生育阶段对养分的需要,按照土壤性质,适期、适量的巧施肥料,充分发挥服料增产效果,是经济合理施肥技术的中心内容。本省1968年多种大小麦面积超过以往任何一年,但随着面积的扩大,未能相应地增加肥料数量,因而使单位面积施肥水平有所下降。在肥料不足的情况下,广大群众进一步发展了看土、看苗施肥的经验,做到经济合理用肥,因而总产量仍获得了显著增加,并使大小麦经济合理施肥技术向前迈进一步。
According to the needs of nutrients in different growth stages of wheat and wheat, according to the nature of the soil, appropriate and appropriate amount of fertilizers, give full play to the effect of increasing yield, is the economic and rational fertilization technology center. In 1968, the area of various sizes of wheat in the province surpassed any one in the past. However, with the expansion of the area, the number of fertilizers failed to be increased accordingly, which led to a decrease in the level of fertilization per unit area. In the case of insufficient fertilizers, the general public further developed their experience in soil and seedling fertilization and achieved economic and rational use of fertilizers. As a result, the total output was still significantly increased, and economic and rational fertilization techniques for wheat, wheat and wheat were taken a step forward.