美国玉米高产竞赛简介

Introduction on America Corn Yield Contest

介绍了美国玉米高产竞赛的历史、高产竞赛的参赛及测产规则、最高产量和主要的栽培技术。分析了竞赛优胜者创造高产的关键技术,提出了我国玉米生产水平提高的关键因素是提高高密度下品种的综合抗性和培肥土壤,提高地力。

It was introdued to the history of America corn yield contest, the regulations of entry form and harvest report form of corn yield contest, the highest yield and the main technique of cultivation in this paper. The main technique were analyzed, that were how to select hybrid, how to sow seeds and how to gain nutritional soil. In present, the keys to increase corn production are to improve the plant resistance under high density and promote the productivity of soil.