Kohler attributes the immediate cause of the abandonment to problems with corn production at a high altitude during short growing seasons.
科勒认为，（居住地）废弃的直接原因是高海拔地区的玉米生长季节较短，因此生产出现了问题。
Other archaeologists have identified the immediate cause of this abandonment to be a series of short growing seasons that would have put pressure on corn production at that high an altitude.
其他考古学家已经发现导致这种遗弃的直接原因是一系列短暂的生长季节，而这将会给生长在高海拔地区玉米的生产带来压力。
Guide farmers to expand rice and corn production as well as to increase grain variety.
引导农民扩大粳稻、玉米、杂粮等农作物生产。
Iowa, which leads the country in corn production, will use 58% of its crop for ethanol this year.
艾奥瓦是美国玉米的主要生产基地，今年这里58%的玉米会用于生产乙醇。
Although corn production has fallen somewhat, due to effective control on corn-processing and exports corn prices should stabilize after May next year;
虽然玉米生产略有下降，由于对玉米加工和出口采取措施得力，玉米价格有望在明年五月之后稳定下来；
Demand for biofuel in America has led to an increase in corn production in Mexico and sugar cane in Brazil.
美国对于生质燃料的需求，提高了墨西哥的玉米，及巴西的甘蔗产量。
It has obvious effect on soil ecological environment and corn production through improving desertification by using peat.
利用泥炭改良沙化退化土地，已见明显土壤生态环境改善、作物增产的效果。
During the decade of the 1980s, the area of corn production in Canada remained relatively stable at approximately one million ha.
八十年代，加拿大玉米种植面积保持相对稳定，大约一百万公顷。
Maize Dwarf Mosaic disease is a kind of serious virus disease in corn production. It occurs in the corn producing areas all over the world.
玉米矮花叶病是玉米生产上的一类重要病毒病，在世界各玉米产区都有发生，长期以来一直严重影响着玉米的产量和质量。
Of the total corn production in the world, more than 75% is used for livestock feed, 10% is processed for food, 10% is used for industrial products.
玉米是饲料之王，世界玉米总产量的75%以上用作饲料，10%加工食品，10%制造工业产品。
The high prices for corn - while driving hunger in Africa - have encouraged other farmers to turn over land from wheat, soybeans, or even pasture to corn production.
高涨的玉米价格在催生非洲的饥荒的同时促使更多农场主在自己原本种植小麦、大豆甚至牧草的土地上种玉米。
Therefore, it is chief assignment to quickly boost mechanization of corn production. It is also an efficient approach to alleviate labor intensity and increase efficiency and income for peasant.
因此，加快推进玉米收获机械化是农业机械化的迫切任务，是减轻农民劳动强度、提高生产率、解放劳动生产力的有效途径。
Corn production has jumped nearly 125 percent over the past 25 years, while rice has increased only 7 percent.
过去25年里，玉米产量增长了近125%，而大米产量只增长了7%。
Corn production has jumped nearly 125 percent over the past 25 years, while rice has increased only 7 percent.
过去25年里，玉米产量增长了近125%，而大米产量只增长了7%。
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