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化控栽培是农业生产上一项新兴技术。在玉米生产上应用的有:玉米健壮素。据江苏省淮阴地区农科所试验,健壮素可使玉米植株矮化50～20厘米,穗位降低15～18厘米,茎秆坚韧,根系发达,增强抗倒伏能力。每亩可增加密度1000～1500株,叶面积指数从4.0增加到5.5～6.0,增加光合产物,充分发挥高秆大穗型玉米的增产潜力,一般增产10％以上,喷施健壮素宜选在玉米抽雄前,每亩用健壮素1支30克,兑水15～20公斤,浓度600～800ppm,均匀地喷洒于穗位以上叶片。但勿与农药化肥混用,以防失效。玉米固氮菌。为一种黑色生物固体菌剂,每克含活菌3亿以上,亩施500克拌种、基施或追施,有为玉米补充氮素营养和促进
Controlled cultivation is an emerging technology in agricultural production. Applied in the production of corn are: Corn hormone. Huaiyin, Jiangsu Province, according to the Agricultural Science Institute tests, Jian Su Su maize plants can dwarf 50 to 20 cm, ear reduction 15 to 18 cm, stem tough, developed root system, enhance lodging resistance. 1000 ~ 1500 plants per acre can be added density, leaf area index increased from 4.0 to 5.5 ~ 6.0, increase photosynthetic products, give full play to high stalk large-spike corn production potential, the general increase of more than 10% Corn tasseled before, each with a strong element of 30 grams a mu, watered 15 to 20 kg, the concentration of 600 ~ 800ppm, spray evenly above the ear position above the leaves. But do not mix with pesticides and fertilizers to prevent failure. Azotobacter corn. For a black biological solid microbial agents, bacteria per gram more than 300 million live, 500 grams of Mushi dressing, basal or topdressing, there is nitrogen nutrition and promotion of corn