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甜玉米为玉米的一个亚种.它生育期短,丰产性好,品质优良,用途广泛,经济效益高,深受广大农民的青睐.其主要栽培技术如下:1、选地栽种 甜玉米容易和一般玉米串粉,影响商品质量.因此,选择适宜的栽种地,防止串粉,是种好甜玉米的前提条件.隔离方法有3种:一是空间隔离法,鲜售青苞田要求隔离30m以上,加工青苞田要求隔离100m以上;二是时间隔离法,同其它玉米错开花期15天以上;三是自然屏障隔离法,以20m以上的其它高秆作物或以林带、房屋等自然屏障进行隔离.2、整地播种 甜玉米种子出苗能力弱,要精细整地.耕前亩施优质腐熟有机肥4000kg,磷酸二氨50kg、氯化钾20kg,锌、硼肥各1kg.早春气温稳定在12℃时播种.耕层土壤含水量保持在田间持水量的60—70%.并视市场供应和加工需要分期播种,以延长采收期.种植密度为:早熟种行距67cm,株距25—28cm;每亩3500—4000株;中熟种行距78cm,株距22—28cm,每亩3000—3500株.亩用种量1.5—2kg,每穴3—4粒.3、田间管理 3叶期前移苗补缺,以保全苗、壮苗.苗期基部产生的分蘖要及时清除以节省养分,促进主茎生长.此外,还应及早进行中耕除草.甜玉米
Sweet corn is a subspecies of corn, it has short growth period, good yield, good quality, wide range of uses and high economic benefits, and is favored by farmers. The main cultivation techniques are as follows: 1, General corn flour, affecting the quality of the product.Therefore, the choice of suitable planting, to prevent the string of powder, is a good prerequisite for planting sweet corn.There are three isolation methods: First, the space isolation method, the sale of fresh green bamboo fields require isolation 30m Above, the processing of green bamboo fields more than 100m isolation requirements; Second, time isolation method, the same as other miscrossed flowering more than 15 days; Third, the natural barrier isolation method to 20m above other high-stalk crops or shelterbelts, houses and other natural barriers Isolation .2, planting sweet corn seedling seedling emergence is weak, to finely ground .Multi-fertilization of high-quality maturity before planting organic fertilizer 4000kg, diammonium phosphate 50kg, potassium chloride 20kg, zinc, boron fertilizer of 1kg. Early spring temperatures stable at 12 ℃ When planting soil moisture remained at 60-70% of field capacity, and depending on market supply and processing needs of sowing in order to extend the harvest period planting density: precocious spacing 67cm, spacing 25-28cm; each Mu 3500-4000 strains; medium-ripening line Distance 78cm, spacing 22-28cm, 3000-3500 acres per mu. Acreage of 1.5-2kg, 3-4 per hole .3, field management 3 leaves before the transplant replacement fill in order to protect the seedlings, strong seedlings. Tillers produced at the base should be removed in time to conserve nutrients and promote stem growth. In addition, tillering should be carried out as soon as possible.