作物种植 - 2026 进行中

科目: 作物种植
级别: XI (I级最简单，XII级最难)
类别: 大学生
试题语言: English
题数: 15
问题示例: A crop has a harvest index of 0.42 and produces 12.5 t/ha of total above-ground dry matter. What is its economic yield? 4.25 t/ha, 5.25 t/ha, 6.75 t/ha, 7.15 t/ha