【Key words】 High-yielding population； Dry matter accumulation； Simulation model； Growth characteristic；
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Despite stiff resistance by the nomadic population, people were moved to collective farms and high-yielding cattle breeds were introduced.
尽管游牧民顽强抵抗，但还是被迫迁往一块块集体农场，在那开始养殖高产畜牧业。
Effects of different spacing form, density on structure of population, light distribution and yield of phaseolus vulgaris were studied under the high yielding condition.
研究了在高产条件下，不同行距配置、密度对奶花芸豆群体冠层结构、光能分布与利用特性及产量构成的影响。
The rice plant population with more effective tillers was high-yielding.
分蘖成穗率高、分蘖穗比率大的群体产量较高。
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