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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Effect of nitrogen and phosphorus on yield and yellow berry development in bread and durum wheat

Negedu, Samuel, 1947- January 1978 (has links)
No description available.
12

Cotton Fertilizer Experiments in the Salt River Valley

Serviss, George H., Hawkins, R. S. 15 September 1928 (has links)
This item was digitized as part of the Million Books Project led by Carnegie Mellon University and supported by grants from the National Science Foundation (NSF). Cornell University coordinated the participation of land-grant and agricultural libraries in providing historical agricultural information for the digitization project; the University of Arizona Libraries, the College of Agriculture and Life Sciences, and the Office of Arid Lands Studies collaborated in the selection and provision of material for the digitization project.
13

Fertilization of Field Crops in Arizona

McGeorge, W. T. 05 1900 (has links)
No description available.
14

The microbiological oxidation of various nitrogen fertilizers in desert soils; with special reference to the behavior of anhydrous ammonia

Caster, A. B. (Alfred Byron), 1906- January 1941 (has links)
No description available.
15

Yields and leaf elemental composition of cotton grown on sludge-amended soil

Watson, John Earl January 1979 (has links)
No description available.
16

Yield, dry matter production, and nitrogen uptake of drip irrigated cotton

Ahmed, Sabah Kedar. January 1988 (has links)
The study consisted of two experiments conducted over two growing seasons. Urea ammonium nitrate was used as a source of N at rates of 50, 75, 100 and 150% of levels estimated to be ideal for maximum yield of cotton (Gossvpium hirsutum L.). The nitrogen fertilizer was applied through a drip irrigation system. The yield of seed cotton, flowering pattern, boll set, plant N uptake, and dry matter production were studied in relation to four N fertilizer rates and two plant populations in the 1984 study. Yield of seed cotton, plant N uptake and dry matter production were studied in relation to four N rates, three seeding rates, and three cotton cultivars in the 1985 study. Petiole nitrate patterns were studied both seasons. The effect of N applications on seed cotton yield was dependent upon the initial soil N and the yield possibility. In this study the lower rate of N appeared to be sufficient for the yields obtained. Thinning resulted in reduction of the total number of flowers and significantly decreased yield, but percent boll set was not affected. Nitrogen additions significantly increased plant N uptake and dry matter production as well as petiole NO₃-N levels during the growing season. The N need of cotton under drip irrigation was determined throughout the growing season by using petiole analysis. The levels of petiole NO₃-N for N sufficiency and deficiency which are accepted under furrow irrigation cotton were shown to be applicable for drip irrigated cotton. Yield of DPL-775 and DPL-90 cotton cultivars was significantly higher than that for DPL-41 cotton cultivar in 1985.
17

FERTILIZATION AND BURNING EFFECTS ON USE OF DESERT GRASSLAND BY CATTLE

Bryant, David Arley January 1971 (has links)
No description available.
18

The effects of steer manure loading rate and cropping pattern upon soil fertility status

Hathorn, Scott, 1951- January 1978 (has links)
No description available.

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