ทรัพยากร ระบุป้าย: Agriculture Colombia
1 รายการที่พบ (กำลังแสดง 1 - 1)
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		01-01-2003 As part of a major effort to improve quality of native savanna soils for agricultural production in the Llanos of Colombia, a field experiment was established in May 1996 to determine the impact of vertical tillage, application of soil amendents and fertilizers, crop rotation and crop-pasture...