Fertilizer sources for cotton: Fertilizer materials supplying nitrogen and phosphate tested for crop producing efficiency
D. S. Mikkelsen, University of California
E. G. Smith, Cotton Field Station
California Agriculture 7(6):7-8. DOI: 10.3733/ca.v007n06p7.
D. S. Mikkelsen is Assistant Agronomist, University of California, Davis; E. G. Smith is Associate Agronomist, U.S.D.A., U. S. Cotton Field Station, Shafter;
Not available – first paragraph follows:
Nitrogen is the most important single fertilizer element in the economic production of cotton in California.
Farm Advisors J. O. Hoyt, Fresno; O. D. Mc-Cutcheon, Kings; G. V. Ferry, Kern; C. E. Johnson, Madera; A. George, Tulare; Exrension Cotton Specialist Marvin Hoover, cooperated in the trials reported here
The above progress report is based on Research Project No. 1437