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Effects of Nitrogen and Water Rates on Nitrogen Uptake Dynamics in Drip Irrigated Sweet CornDoerge, T. A., Stroehlein, J. L., Tucker, T. C., Fangmeier, D. D., Oebker, N. F., McCreary, T. W., Husman, S. H. 05 1900 (has links)
A complete factorial experiment using three nitrogen (67, 156 and 245 lbs N/acre) and three water rates (70, 100 and 130% consumptive use) examined the specific management criteria necessary for obtaining optimum yield and quality of drip- irrigated 'Sweetie '82' sweet corn. The crop was planted on 22 February and harvested on 30 May with an 86/50° F heat unit accumulation of 1444. When present, a nitrogen deficiency greatly decreased marketable yield number of marketable ears/plant mean ear weight, ear length and tip fill. Higher moisture rates generally had less effect on yield and quality than did N rates; however, increasing water rates significantly increased marketable yields and plant height. The effect of N and water rates on N and dry matter accumulation and on diagnostic plant tissue testing results for sweet corn are also presented The maximum marketable yield obtained in this experiment was 7.2 tons per acre, using 245 lbs N/acre and 20.5 inches of irrigation water.
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Effect of Nitrification Inhibitors on Nitrogen Utilization Efficiency in Sweet CornDoerge, Thomas A., Tucker, T. C., McCreary, T. W. 05 1900 (has links)
A field experiment using subsurface drip irrigation was conducted at the Maricopa Agricultural Center on a Casa Grande sandy loam soil to evaluate the effect of varying nitrogen (N) sources on the growth and yield of 'Sweetie' 82' sweet corn when applied with, and without four nitrification inhibitors (Nl). The NI treatments included nitrapyrin (N-Serve*), dicyandiamide (DCD), ammonium thiosulfate, and N-Hib Calcium™. Nitrogen was supplied as urea -ammonium nitrate (UAN -32). In addition, an all nitrate source plus a control which received no added N were used. Al! N treated plots received a total of 111 lbs. N acre in split applications at the V3, V6 and the V12 stages. All solutions were applied through buried, perforated PVC tubing to simulate application through the buried drip irrigation system. The inclusion of the nitrification inhibitors with UAN-32 had no significant effect on marketable ear yield, total N uptake or nitrogen use efficiency.
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Double-crop Grain Sorghum Variety Trial in Graham County, 1994Clark, L. J., Carpenter, E. W., Cluff, R. E. 10 1900 (has links)
Nine grain sorghum hybrids were compared in a replicated trial planted as a second crop after a small grain crop had already been harvested. Because of reduced season as a double-crop all the cultivars were mid- season or shorter. Cargill 727 was the highest yielding hybrid with a yield over 5100 pounds per acre.
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Corn Variety TestsSullivan, Larry, Parsons, David K., Dennis, Robert E., Camp, Carlton L. 09 1900 (has links)
No description available.
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Corn for Grain at YumaJackson, E. B., Howell, Don E., Dennis, Robert E. 09 1900 (has links)
No description available.
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Corn Variety TestsSullivan, Lawrence M., Cluff, Ronald E., Parsons, David K. 09 1900 (has links)
No description available.
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Field Corn Variety TrialSullivan, Lawrence M., Cramer, Gary, Parsons, David K. 09 1900 (has links)
No description available.
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Selection of Maturity Group of Corn for Double Cropping After Wheat at Safford, ArizonaVoigt, Robert L., Parsons, David K., Thatcher, Max 09 1900 (has links)
No description available.
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White Corn Variety TestSullivan, Lawrence M., Cramer, Gary, Parsons, David K. 09 1900 (has links)
No description available.
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Corn Silage DemonstrationDawson, Lester, Parsons, David K. 09 1900 (has links)
No description available.
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