In the meantime, mode of modernization of agriculture of country of the New World-the Americas (mechanization + chemistry is changed) evil consequence also chases fadein to be shown.

• 同时,新大陆国家农业现代化模式(机械化+化学化)的恶果也逐渐显露出来。生产力发展的需要推动着与农业亲和力最强的生物技术的飞速发展。