化肥的带状施放或撒施对大多数主要作物及其营养元素的影响,已有广泛的研究。一般,接近种子或植株带施磷钾肥可比其他施肥方法获得较高的产量,并能获得较大的肥效。但接近种子大量施肥,尤其是氮钾肥常对幼苗产生伤害作用。这是由于可溶性盐分含量高或受氨及亚硝酸盐的毒害所致。早在1936年即有在烟行边作带状施肥促进烟叶生长的报道。在烟行下带状施肥,存活的 There has been extensive research into the effects of banded or sprinkled fertilizer on most major crops and their nutrients. In general, near the seed or plant with phosphorus and potassium fertilizers than other fertilization methods to obtain higher yields, and can obtain greater fertilizer efficiency. However, a large number of close to the seed fertilization, especially nitrogen and potassium fertilizers often have an injury effect. This is due to the high content of soluble salts or the poisoning of ammonia and nitrite. As early as 1936, there was a report on the application of banded fertilizers to promote the growth of tobacco leaves. Banded in the smoke line fertilization, survival