分离 发表于 2025-3-30 12:12:10
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http://reply.papertrans.cn/103/10219/1021828/1021828_54.pngBACLE 发表于 2025-3-31 03:34:46
Burgeoning Resistance Requires New Strategiesieties then available were far more competitive with the weeds than those presently grown. Yields were low because the crop competitiveness has a high cost in yield (cf. Herms and Mattson, 1992). Energy costs either as fuel for tractors, fodder for animals, or food for laborers were high. The advent耕种 发表于 2025-3-31 07:57:49
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