Part of the land is double-crop.

部分土地在同一季内种植了两种作物。

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Through the qualitative test and performance test, it proved that the double hole can be used in precise seeding for tillering crop (such as wheat).

通过定性试验和性能试验，论证了复式型孔能够用于分蘖作物(小麦)的精量播种。

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Millions of hectares of this year's wheat crop have been lost to the heat, drought and fires this summer in Russia—prompting U. S. wheat prices to double in a matter of days.

今年夏天，俄罗斯因为高温、干旱和大火损失了几百万公顷的小麦，这使得美国的小麦价格在几天时间里就翻倍了。

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This irrigation-efficient system, Khodpe was told, could double crop yields and save up to 60% of the water that flood irrigation methods consume.

FORBES: Magazine Article

The sweet potato is sub-Saharan Africa's first genetically modified crop, and its yields so far are double that of the regular plant.

FORBES: Millions Served