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Crop Fertilization on Coast Prairie and Coastal Bend Soils.
(Texas Agricultural Extension Service, 1976)
Zinc Deficiency and Fertilization.
(Texas Agricultural Extension Service, 1976)
Field and Forage Crop Fertilization in the Lower Rio Grande Valley.
(Texas Agricultural Extension Service, 1976)
Field and Forage Crop Fertilization in the Rio Grande Plains.
(Texas Agricultural Extension Service, 1976)