Corn (Zea Mays L.) hybrids as affected by row spacing ; Grain yields, components of yield, and grain nitrogen of five double cross hybrids ; Total nitrogen and nitrate nitrogen in different plant parts of six single cross hybrids
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Corn (Zea Mays L.) hybrids as affected by row spacing ; Grain yields, components of yield, and grain nitrogen of five double cross hybrids ; Total nitrogen and nitrate nitrogen in different plant parts of six single cross hybrids
