With 312-d optimized saturation design, field experiment was conducted to study yield effect of water and fertilizer coupling on spring maize.
采用312-D最优饱和设计，开展了春玉米水肥耦合作用田间试验研究。
The field experiment was conducted to study the effects of different conservation tillages on soil temperature, moisture and yield formation of spring maize.
通过大田试验研究了保护性耕作对土壤水温和春玉米产量形成的影响。
She dwelt on the hillside by the edge of a maize-field, near the spring that flows in laughing rills through the solemn shadows of ancient trees.
她住在玉米地边的山畔，接近那股嬉笑着流经古树的肃静的阴影的清泉。
She dwelt on the hillside by the edge of a maize-field, near the spring that flows in laughing rills through the solemn shadows of ancient trees.
她住在玉米地边的山畔，接近那股嬉笑着流经古树的肃静的阴影的清泉。
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