1. can the yield of corn get improved when the green leaf area is maintained in dry condition?
2. the comparison among accumulating dynamics of dry matters in sorghum during different sowing time.
干旱条件下保持绿叶面积能提高玉米产量吗？
can keep the count of corn at not off water after the same of area's plant-green？
不同播期高粱干物质积累动态比较
compare the material of plant-accumulate change in different period
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