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前言地膜覆盖栽培技术,在国内外已普遍推广应用,收到早熟、抗灾、优质、增产增收的最佳效果。关于直播玉米干物质积累与分配,在国内外有很多报道,但对覆膜玉米干物质生产与分配,很少有人做过深入研究。我所于1985～1987年用生长分析的方法,对地膜覆盖玉米与直播玉米同化产物的积累和分配过程进行了研究,为玉米地膜覆盖早熟、高产栽培技术提供理论依据。
Preface Mulching technology has been widely applied at home and abroad and received the best results of precocious, disaster-resistant, high-quality and yield increase. There are many reports at home and abroad on the dry matter accumulation and distribution of direct seeding corn. However, few studies have been done on the production and distribution of dry matter of plastic mulched maize. I used the method of growth analysis from 1985 to 1987 to study the accumulation and distribution of assimilation products of mulching and direct seeding corn in mulching and provide the theoretical basis for premature mulching and high yielding cultivation techniques of maize mulching.