True, it says, climate change in the form of heat and drought may have reduced yields of maize and wheat.
报告称气候变化导致的炎热与干旱可能使玉米和小麦减产。
The result showed that Yield and straw crude protein contents and true protein contents and amino acid contents of forage green maize were obviously increased after nitrogen application.
结果表明,追氮可显著提高饲用青玉米的产量以及秸秆粗蛋白、真蛋白和氨基酸含量。
You can see in the New World with maize being important how America has become a corn dominated society, even though it's still true that we raise wheat, we raise other things in the United States, and we can import different foods, corn has become an incredibly important constituent of the diet in the U.S.
你能发现玉米在美洲大陆的重要性,那美洲是怎样变成主食玉米的社会的呢,尽管我们仍然种植小麦,在美国也种植其他粮食,而且我们能进口各种不同食物,但是玉米还是变成了,美国人食谱中不可代替的部分
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