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通过对吉林省玉米高产区１９７８～１９９３年１６年的小区试验及高产示范田的产量结果分析，明确了公顷产量达到１１２５０ｋｇ所需的环境条件是；上等肥力平地５～９月积温２９００～２９５０℃·日、降水３７０～４００ｍｍ，岗平地２９００～２９５０℃·日、４００～４５０ｍｍ，平洼地３０００℃·日、３７０～４００ｍｍ；中上肥力岗平地２９５０～３０００℃·Ｂ、４５０～５００ｍｍ；１０６０～１２３２小时日照能满足高产需要。在吉林省具备上述自然条件的玉米面积５０万公顷左右，主要集中在长春、四平地区。其产量潜力可达到公顷１３０００ｋｇ。
Through the analysis of the plot test and the yield of high-yielding demonstration plots of high-yielding corn from 1978 to 1993 in Jilin Province, it is clear that the environmental conditions required for the production of 11250kg hectare is that the upper fertility flattening is from 2900 to 2950 ℃ · day, precipitation 370 ~ 400mm, post flat 2900 ~ 2950 ℃ · day, 400 ~ 450mm, flat depressions 3000 ℃ · day, 370 ~ 400mm; middle and upper fertility Gangping 2950 ~ 3000 ℃ · B, 450 ~ 500mm; 1060 ~ 1232 hours of sunshine to meet the needs of high yield. The area of maize that has the above natural conditions in Jilin Province is about 500,000 hectares, mainly in Changchun and Siping. Its production potential can reach 13,000 kg ha.