秋高
秋高-
秋高粱产量达3900～5767.5kg／hm2的关键措施是：选用秋高粱种，在7月上、中旬播种和5～7叶移栽
The key measures for yielding 3900 ~ 5767 5kg / ha of Autumn sorghum are to sow elite variety , sowing on the first or second ten days of July and transplanting at the seedling age with 5 ~ 7 leaves
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一年中当地上空甲烷的浓度呈明显的冬春低夏秋高的趋势，且夏季甲烷浓度的变化幅度比较大。
The concentration and concentration deviation were high in summer and low in winter .