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天峨县岜暮乡政府干部李昌宏,今年种植的玉米平均亩产达715公斤,比当地常规种植的玉米亩产高出3倍。扣除人工和肥料、种子每亩支出308元,平均每亩纯增收407元。据当地农业技术干部说,这创造了大石山区有史以来玉米的、最高产量。为什么能获得这样商的产量?李昌宏的经验是:1、选用良种。今年他家种的10亩玉米,用的是县种子公司从四川正大农牧种子有限公司引进的619单交玉米种。2、适时播种。一般雨水开始播种,惊蛰前播完,最迟不能超过春分。据他多年试验对比,惊蛰前播种的要比春分后播种韵增产45％～49％。3、合理密植。杂交玉米植株比常规玉米矮壮,能够充分获得光照,每亩可种植5800至6000株。
Li Changhong, a government official at Suomei Township in Tian’e County, averaged 715 kilograms of corn planted this year, three times as much as that of the conventionally grown corn in the area. Excluding artificial and fertilizers, the expenditure per acre was 308 yuan, an average increase of 407 yuan per mu. According to local agricultural technical cadres, this has created the highest yield of corn ever produced in Dashi County. Why can we get such a commercial production? Li Changhong’s experience is: 1, selection of elite. This year he planted 10 acres of corn, with the county seed companies from Sichuan Chia Tai Farming and Seeds Co., Ltd. introduced 619 single cross corn. 2, timely sowing. General rain began sowing, Jingzhe before sowing, the latest can not exceed the equinox. According to his many years of experimental comparison, Jingzhe sowing before sowing than after the spring sowing yield 45% to 49%. 3, reasonable close planting. Hybrid maize plants are shorter than conventional maize plants and are fully sunlight-lit with 5800 to 6000 lines per acre.