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我所于1988～1989年开展了玉米矮化密植栽培法试验研究工作.玉米矮化密植栽培法是通过使用植物生长调节剂的一种复配剂——玉米健壮素,使玉米株形矮化,叶形直立短而宽,从而突破了常规栽培群体,增加种植密度。研究结果表明,玉米健壮素,确有被玉米叶片吸收,进入体内调节生理功能,使植株明显矮化敦实,叶形直立短而宽,根系发达气生根多,干物质积累增多,发育加快提前成熟。喷施玉米健壮素三种不同密度处理其产量结果均比同密度的对照增产。增产幅度为9.0～19.8,%,每公顷纯收入可增加345～1155元。其投入产出比为1:4～1:12。该试验结果,其最佳的群体结构为每公顷6万株。增产幅度较大。由此可见,玉米矮化密植栽培法,实施简单,成本低,产量高,效益明显。
I carried out in 1988 to 1989, dwarf and dense cultivation of corn cultivation research methods.Drill dense planting method is through the use of plant growth regulators, a compounding agent - corn hormone, dwarf corn plant , Leaf shape erect short and wide, thus breaking the conventional cultivation groups, increase planting density. The results showed that cornstrength hormone was indeed absorbed by maize leaf and entered into the body to regulate physiological function, which made the plant significantly dwarf and firm, the leaf shape was short and wide, the root system had more airy roots, increased dry matter accumulation and premature maturation . Spraying corn healthy hormone three different density treatment of its yield results than the same density control yield. Yield increase of 9.0 ~ 19.8,%, net income per hectare can increase 345 ~ 1155 yuan. The input-output ratio of 1: 4 ~ 1: 12. The result of this experiment showed that the best population structure was 60,000 per hectare. Increase the rate of larger. Thus, corn dwarf close planting cultivation method, simple implementation, low cost, high yield and obvious benefit.