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- Author:
- G. J. Gascho, et al. ; A. M. O. Elwali; Show all 2 Author
- Source:
- Agronomy journal 1988 v.80 no.2 pp. 243-249
- ISSN:
- 0002-1962
- Subject:
- fertilization (reproduction); Zea mays; irrigation; NPK fertilizers
- Abstract:
- ... Applying moderate amounts of fertilizers to irrigated corn (Zea mays L.), and making corrections during the growing season as indicated by foliar analysis, is very appealing as a means of reducing risk and increasing fertilizer efficiency, especially on imgated sandy soils. This study was conducted to determine the relative abilities of the Diagnosis and Recommendation Integrated System (DRIS) and ...
- DOI:
- 10.2134/agronj1988.00021962008000020019x
- https://doi.org/10.2134/agronj1988.00021962008000020019x
- Author:
- G. J. Gascho, et al. ; W. D. Branch; Show all 2 Author
- Source:
- Agronomy journal 1985 v.77 no.6 pp. 963-965
- ISSN:
- 0002-1962
- Subject:
- Arachis hypogaea; cultivars; soil fertility; variety trials; Georgia
- Abstract:
- ... Because of expansion of additional hectareage onto marginal soil types and the economical need to reduce production inputs, differential genetic responses to lower fertility practices need to be sought within crop species. During 1981 through 1983, tests were conducted to evaluate 24 peanut (Arachis hypogaea L.) cultivars under low soil fertility. The Tifton loamy sand (fine-loamy, siliceous, ther ...
- DOI:
- 10.2134/agronj1985.00021962007700060031x
- https://doi.org/10.2134/agronj1985.00021962007700060031x
- Author:
- G. J. Gascho, et al. ; A. M. O. Elwali; Show all 2 Author
- Source:
- Agronomy journal 1985 v.77 no.1 pp. 145-149
- ISSN:
- 0002-1962
- Subject:
- Triticum aestivum; Glycine max; potassium; fertilizer application; double cropping; sandy soils
- Abstract:
- ... The wheat [Triticum aestivum (L.) em. Thell.] and soybean (Glycine max (L.) Merr.] double cropping sequence is an important cropping system in the Southern Coastal Plain of the USA. A study was conducted for two crop cycles to determine the optimum timing of supplying adequate K on a Bonifay sand (loamy, siliceous, thermic grossarenic, Plinthic Paleudult). Treatment variables consisted of five K a ...
- DOI:
- 10.2134/agronj1985.00021962007700010034x
- https://doi.org/10.2134/agronj1985.00021962007700010034x
- Author:
- G. J. Gascho, et al. ; A. M. O. Elwali; Show all 2 Author
- Source:
- Agronomy journal 1984 v.76 no.3 pp. 466-470
- ISSN:
- 0002-1962
- Subject:
- Diagnosis and Recommendation Integrated System; Saccharum; calcium; copper; farmers; fertilizers; iron; leaf analysis; leaves; magnesium; manganese; muck soils; nitrogen; nutrient balance; nutrient content; phosphorus; planning; potassium; ratooning; soil sampling; sugarcane; sugarcane soils; sugars; zinc; Florida
- Abstract:
- ... Foliar analysis has been practiced widely in sugarcane (a complex trispecies hybrid of Saccharum) for planning and evaluation of fertilizer programs and harvest schedules. On the mainland of the USA, sugarcane farmers have traditionally relied on soil testing to plan fertilizer programs. Soil testing remains an excellent preplant practice but its reliability for the successive ratoon crops has bee ...
- DOI:
- 10.2134/agronj1984.00021962007600030024x
- https://doi.org/10.2134/agronj1984.00021962007600030024x
- Author:
- G. J. Gascho, et al. ; A. M. O. Elwali; Show all 2 Author
- Source:
- Agronomy journal 1983 v.75 no.1 pp. 79-83
- ISSN:
- 0002-1962
- Subject:
- Diagnosis and Recommendation Integrated System; Histosols; Saccharum; calcium; copper; fertilizers; hybrids; iron; leaves; magnesium; manganese; monitoring; nitrogen; nutrient balance; nutrient content; nutrients; nutritional status; phosphorus; planting; potassium; sugarcane; sugars; zinc; Florida
- Abstract:
- ... Nutritional imbalances in sugarcane (a complex trispecies hybrid of Saccharum) on Florida Histosols (Medisaprists) were suggested in earlier studies. In order to eliminate possible imbalances among nutrients, the Diagnosis and Recommendation Integrated System (DRIS) was adapted to monitor the nutritional status of sugarcane in an experiment with varying P and K levels. Standard DRIS reference norm ...
- DOI:
- 10.2134/agronj1983.00021962007500010020x
- https://doi.org/10.2134/agronj1983.00021962007500010020x
- Author:
- G. J. Gascho, et al. ; G. H. Snyder; D. B. Jones; Show all 3 Authors
- Source:
- Soil Science Society of America journal 1986 v.50 no.5 pp. 1259-1263
- ISSN:
- 0361-5995
- Subject:
- Histosols; Oryza sativa; calcium silicate; grain crops; grain yield; nutrients; panicles; plant nutrition; rice; silicon; slags; straw
- Abstract:
- ... Rice (Oryza sativa L.), one of the world's most widely grown grain crops, is seldom grown on Histosols, in part because of many problems related to plant nutrition. Studies were conducted on Terra Ceia muck (Typic Medisaprists) in the Everglades to determine the effect of calcium silicate slag on ‘Lebonnet’ rice production. Grain yields were increased in excess of 30% in each of 3 yr by preplant a ...
- DOI:
- 10.2136/sssaj1986.03615995005000050035x
- https://doi.org/10.2136/sssaj1986.03615995005000050035x
- Author:
- G. J. Gascho, et al. ; D. L. Anderson; H. Y. Ozaki; Show all 3 Authors
- Source:
- Agronomy journal 1986 v.78 no.6 pp. 1064-1069
- ISSN:
- 0002-1962
- Subject:
- Saccharum; cultivars; nitrogen; Histosols; nutrition physiology; crop yield; crop quality; nutrient use efficiency; Florida
- Abstract:
- ... Sugarcane (a complex trispecies of Saccharum) in Florida is moving from N-rich Histosols to N-deficient sands. Since little is known about the N-use efficiency of cultivars grown in the continental United States, we conducted studies with four cultivars to compare N-use efficiencies under varying N levels. Three of the cultivars were originally selected as commercial cultivars from the breeding pr ...
- DOI:
- 10.2134/agronj1986.00021962007800060025x
- https://doi.org/10.2134/agronj1986.00021962007800060025x
- Author:
- G. J. Gascho, et al. ; Myron B. Parker; T. P. Gaines; Show all 3 Authors
- Source:
- Agronomy journal 1983 v.75 no.3 pp. 439-443
- ISSN:
- 0002-1962
- Subject:
- Glycine max; Paleaquults; Paleudults; cultivars; drought; fertilizer application; fertilizers; leaves; magnesium; phosphorus; phytotoxicity; potassium chloride; sand; scorch; seed weight; soil quality; soil-plant interactions; soybeans; Georgia
- Abstract:
- ... Leaf scorch, caused by CI toxicity, affected over 20,000 ha of soybeans (Glycine max (L.) Merr.) in 1980 in the poorly-drained Flatwoods soils of Georgia. This new disorder, compounded by the extended drought of 1980, resulted in Severe yield reductions of ‘Bragg’ soybeans. Field studies involving fertilizer treatments in two experiments and 15 cultivars in one experiment were conducted in 1981 to ...
- DOI:
- 10.2134/agronj1983.00021962007500030005x
- https://doi.org/10.2134/agronj1983.00021962007500030005x
- Author:
- G. J. Gascho, et al. ; S. F. Shih; Show all 2 Author
- Source:
- Agronomy journal 1980 v.72 no.2 pp. 309-313
- ISSN:
- 0002-1962
- Subject:
- Saccharum; agronomy; bioenergy; biomass production; cultivars; equations; leaf area; leaf area index; lysimeters; sugarcane
- Abstract:
- ... Sugarcane (Saccharum spp.) is a leading contender in comparisons of biomass energy systems, however, scientific information on growth factors affecting biomass is limited and precludes establishing valid interrelationships for predicting biomass production. With that objective in mind, two sugarcane experiments were conducted at lysimeter and field sites to study the relationships among stalk leng ...
- DOI:
- 10.2134/agronj1980.00021962007200020014x
- https://doi.org/10.2134/agronj1980.00021962007200020014x
- Author:
- G. J. Gascho, et al. ; J. D. Miller; Show all 2 Author
- Source:
- Agronomy journal 1979 v.71 no.2 pp. 275-278
- ISSN:
- 0002-1962
- Subject:
- Saccharum; agronomy; brix; cultivars; hybrids; juice quality; juices; pH; sucrose; sugarcane; temperature; titratable acidity
- Abstract:
- ... Sugarcane (a complex trispecies hybrid, Saccharum spp) deteriorates following a killing freeze resulting in decreased sugar recovery with time. When the freeze is severe, sugarcane becomes unmillable. Cultivar differences in deterioration rates following freezes have been reported but most modern sugarcane cultivars have not been tested under field conditions. The main objective of this study was ...
- DOI:
- 10.2134/agronj1979.00021962007100020014x
- https://doi.org/10.2134/agronj1979.00021962007100020014x
- Author:
- G. J. Gascho, et al. ; T. P. Gaines; M. B. Parker; Show all 3 Authors
- Source:
- Agronomy journal 1984 v.76 no.3 pp. 371-374
- ISSN:
- 0002-1962
- Subject:
- Glycine max; chlorides; loamy sand soils; plant tissues; sandy clay loam soils; sandy clay soils; sandy soils; sodium nitrate; soil chemical properties; soil-plant interactions; solvents; soybeans; Georgia
- Abstract:
- ... An accurate, precise, and fast automated method for determining Cl in large numbers of soil and plant samples was needed in the confirmation that Cl toxicity was the cause of leaf scorch, a new disorder of soybean [Glycine max (L.) Merr.] grown on Atlantic Coast Flatwoods soils of Georgia. The method described involves the use of 0.1 M NaNO₃ as an extractant for soil and plant tissue samples with ...
- DOI:
- 10.2134/agronj1984.00021962007600030005x
- https://doi.org/10.2134/agronj1984.00021962007600030005x
- Author:
- G. J. Gascho, et al. ; J. E. Hook; G. A. Mitchell; Show all 3 Authors
- Source:
- Agronomy journal 1984 v.76 no.1 pp. 77-81
- ISSN:
- 0002-1962
- Subject:
- Paleudults; agronomy; center pivot irrigation; corn; equipment; nitrogen; nutrient use efficiency; nutrition; rain; sand; winter
- Abstract:
- ... Maintaining efficient N nutrition for irrigated corn (Zen mays L.) grown on deep sands is difficult due to low N supplying capabilities and leaching losses of applied N. Scheduled applications of N by the use of center-pivot irrigation equipped with modern solution injection equipment should reduce leaching and increase N-use efficiency. The objective of this study was to compare the efficiency of ...
- DOI:
- 10.2134/agronj1984.00021962007600010020x
- https://doi.org/10.2134/agronj1984.00021962007600010020x
- Author:
- G. J. Gascho, et al. ; S. F. Shih; G. S. Rahi; Show all 3 Authors
- Source:
- Agronomy journal 1981 v.73 no.6 pp. 1027-1032
- ISSN:
- 0002-1962
- Subject:
- Sorghum bicolor; biomass production; crop production; equations; fertilizer requirements; leaf area; leaf area index; leaf length; leaf width; leaves; models; prediction; sugars; sweet sorghum; water stress
- Abstract:
- ... Sweet sorghum [Sorghum bicolor (L.) Moench] is a leading contender in biomass production energy systems because of its high biomass yield, high percentage of easily fermentable sugars and combustible organics, tolerance to water stress, and low fertilizer requirements. However, scientific information on growth factors is limited and precludes establishing valid interrelationships for predicting bi ...
- DOI:
- 10.2134/agronj1981.00021962007300060028x
- https://doi.org/10.2134/agronj1981.00021962007300060028x
- Author:
- G. J. Gascho, et al. ; A. M. O. Elwali; M. E. Sumner; Show all 3 Authors
- Source:
- Agronomy journal 1985 v.77 no.3 pp. 506-508
- ISSN:
- 0002-1962
- Subject:
- plant nutrition; Zea mays; fertilizers; nutrient requirements; Diagnosis and Recommendation Integrated System; Georgia
- DOI:
- 10.2134/agronj1985.00021962007700030032x
- https://doi.org/10.2134/agronj1985.00021962007700030032x
- Author:
- G. J. Gascho, et al. ; J. G. Davis; J. E. Hook; R. D. Wauchope; C.C. Dowler; A. W. Johnson; C. C. Truman; H. R. Sumner; Show all 8 Authors
- Source:
- Soil Science Society of America journal 1998 v.62 no.6 pp. 1711-1718
- ISSN:
- 0361-5995
- Subject:
- agricultural soils; Udults; nitrate nitrogen; phosphorus; losses from soil; runoff; nitrogen fertilizers; phosphorus fertilizers; potassium fertilizers; granules; liquid fertilizers; rain; field experimentation; Georgia
- Abstract:
- ... Runoff from crop land can enhance eutrophication of fresh water and hypoxia in sea water. We simulated rain at 25 mm hr⁻¹ for 2 hr, 8 d prior and 1, 14, 29, 49 and 108 d after fertilization and planting of corn (Zea mays L.). Experimental sites received 50 kg N, 45 kg P, and 125 kg K ha⁻¹ as granulated fertilizer broadcast and incorporated to a depth of 150 mm. An additional 118 kg N ha⁻¹ was surf ...
- DOI:
- 10.2136/sssaj1998.03615995006200060032x
- https://doi.org/10.2136/sssaj1998.03615995006200060032x
- Author:
- G. J. Gascho, et al. ; S. H. Elawad; J. J. Street; Show all 3 Authors
- Source:
- Agronomy journal 1982 v.74 no.3 pp. 481-484
- ISSN:
- 0002-1962
- Subject:
- Saccharum; cement; crops; disc harrows; hybrids; muck soils; plant height; planting; ratooning; silicates; silicon; slags; sugarcane; sugars; tillering; Florida
- Abstract:
- ... Sugarcane (a complex trispecies hybrid of Saccharum) is one of few crops which are highly responsive to applications of silicate materials. Variety ‘C.P. 63-588’ was grown on a Pahokee muck soil (euic, hyperthermic Lithic Medisaprist) to evaluate effects of silicate sources and rates on growth of cane and sugar yield. Data were collected from the initial planting and a subsequent ratoon crop. Sili ...
- DOI:
- 10.2134/agronj1982.00021962007400030019x
- https://doi.org/10.2134/agronj1982.00021962007400030019x
- Author:
- G. J. Gascho, et al. ; S. H. Elawad; J. J. Street; Show all 3 Authors
- Source:
- Agronomy journal 1982 v.74 no.3 pp. 484-487
- ISSN:
- 0002-1962
- Subject:
- Saccharum; calcium; cement; chlorophyll; copper; crops; field experimentation; iron; leaves; magnesium; manganese; muck soils; nutrient content; planting; potassium; ratooning; silicates; silicon; slags; soil pH; solubility; solubilization; sugarcane; zinc; Florida
- Abstract:
- ... Sugarcane (a complex trispecies hybrid of Saccharum is one of the few agronomic crops known to be responsive to silicon. Field experiments were conducted on a Pahokee muck soil (euic, hyperthermic Lithic Medisaprist) to evaluate the effects of silicate sources and rates on the incidence of leaf freckling and chemical composition of sugarcane. Data were collected from the initial planting and the s ...
- DOI:
- 10.2134/agronj1982.00021962007400030020x
- https://doi.org/10.2134/agronj1982.00021962007400030020x
18. Sulfur-coated Fertilizers for Sugarcane: II. Release Characteristics of Sulfur-coated Urea and KCl
- Author:
- G. J. Gascho, et al. ; G. H. Snyder; Show all 2 Author
- Source:
- Soil Science Society of America journal 1976 v.40 no.1 pp. 122-126
- ISSN:
- 0361-5995
- Subject:
- coatings; nitrogen; plant response; potassium chloride; sandy soils; sugarcane; sulfur-coated urea; temperature; Florida
- Abstract:
- ... Nitrogen release from sulfur-coated urea and K release from S-coated KCl were examined by several techniques under field conditions in three south Florida sand soils in order to assist in the interpretation of plant response data and to provide insight into the use of three slow-release fertilizer materials. Decreased thickness of S coating, higher temperatures and higher moisture generally favore ...
- DOI:
- 10.2136/sssaj1976.03615995004000010033x
- https://doi.org/10.2136/sssaj1976.03615995004000010033x
- Author:
- G. J. Gascho, et al. ; G. H. Snyder; Show all 2 Author
- Source:
- Soil Science Society of America journal 1976 v.40 no.1 pp. 119-122
- ISSN:
- 0361-5995
- Subject:
- Saccharum; ammonium sulfate; application timing; growing season; leaching; nitrogen content; nutrition; plant response; planting; sand; sandy soils; split application; spring; sugarcane; sugars; sulfur-coated urea; summer; Florida
- Abstract:
- ... Crop growth and yield on sand soils is often limited by low N availability due to leaching losses from the soil. This study was initiated to determine if sulfur-coated urea (SCU) could supply adequate N nutrition and eliminate the need for repeated N applications for sugarcane (Saccharum spp.) grown on previously uncropped Immokalee fine sand in southern Florida. Single applications of two SCU's w ...
- DOI:
- 10.2136/sssaj1976.03615995004000010032x
- https://doi.org/10.2136/sssaj1976.03615995004000010032x
- Author:
- G. J. Gascho, et al. ; A. M. O. El Wali; F. le Grand; Show all 3 Authors
- Source:
- Soil Science Society of America journal 1980 v.44 no.1 pp. 119-122
- ISSN:
- 0361-5995
- Subject:
- Paleudults; Saccharum; ammonium; fertilizer application; field experimentation; greenhouse experimentation; hybrids; hydrolysis; irrigation rates; leachates; leaching; nitrates; nitrogen; pyridines; sugarcane; sulfur-coated urea; total nitrogen; urea
- Abstract:
- ... Two greenhouse experiments were conducted to determine the relative efficiencies of SCU (sulfur-coated urea) and urea with and without N-Serve [2-chloro-6-(trichloromethyl)pyridine] or S on growth, uptake and subsequent losses of N from sugarcane (a trispecies hybrid of Saccharum) grown on Arredondo fs (a loamy, siliceous, hyperthermic Grossarenic Paleudult). In the first experiment, three SCU pro ...
- DOI:
- 10.2136/sssaj1980.03615995004400010025x
- https://doi.org/10.2136/sssaj1980.03615995004400010025x