Nutrient content and nutrient ratios of irrigated cotton on fertile soils as affected by irrigation frequency, water quality and other factors /
Longenecker, D. E.(Donald E.),author.
Thaxton E. L.,author.
Lyerly, P. J.(Paul J.),author.
Texas Agricultural Experiment Station,publisher.
"MP-728".
Caption title.
Includes bibliographical references (pages 10-11).