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You searched for: Publication Year 1993 Remove constraint Publication Year: 1993 Subject term crop yield Remove constraint Subject term: crop yield Subject term Texas Remove constraint Subject term: Texas
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1. Control of the boll weevil (Coleoptera: Curculionidae) with Naturalis-L: a mycoinsecticide

Author:
Wright, J.E.
Source:
Journal of economic entomology 1993 v.86 no.5 pp. 1355-1358
ISSN:
0022-0493
Subject:
Gossypium; crop damage; Anthonomus grandis; biological control; insect control; Beauveria bassiana; crop quality; crop yield; insecticidal properties; Texas
Abstract:
... Naturalis-L, which contains conidia of an insect-specific fungus, Beauveria bassiana (Balsamo) Vuillemin (ATCC 74040, ARSEF 3097, FCI 7744), was evaluated in field trials for activity against boll weevil, Anthonomus grandis grandis Boheman. Effectiveness was evaluated against overwintered adults in the spring and throughout the cotton production season for control of adults in the Lower Rio Grande ...
DOI:
10.1093/jee/86.5.1355

2. Damage function analysis for the rice stink bug (Hemiptera: Pentatomidae)

Author:
Harper, J.K.; Way, M.O.; Drees, B.M.; Rister, M.E.; Mjelde, J.W.
Source:
Journal of economic entomology 1993 v.86 no.4 pp. 1250-1258
ISSN:
0022-0493
Subject:
Oryza sativa; crop damage; Oebalus pugnax; economic analysis; mathematical models; crop yield; Texas
Abstract:
... The effect of the rice stink bug, Oebalus pugnax (F.), on rough rice yield, head yield, and peck was investigated during 3 yr of experiments at Beaumont and Eagle Lake in the Texas Rice Belt. Natural infestations of rice stink bugs were manipulated by varying planting date and applying control measures at selected rice grain maturation stages. Data were subjected to linear, quadratic, and square r ...
DOI:
10.1093/jee/86.4.1250

3. Factors reducing the pest status of the Russian wheat aphid (Homoptera: Aphididae) on wheat in the Rolling Plains of Texas

Author:
Montandon, R.; Slosser, J.E.; Frank, W.A.
Source:
Journal of economic entomology 1993 v.86 no.3 pp. 899-905
ISSN:
0022-0493
Subject:
Triticum; crop damage; crop yield; Diuraphis noxia; alternative hosts; environmental factors; parasitism; population density; reproduction; Texas
Abstract:
... Effects of field infestations of the Russian wheat aphid, Diuraphis noxia (Mordvilko), on yield of winter wheat in the Texas Rolling Plains were studied. In 1988-1989, colonies established from three different population isolates were released into small plots in the fall and spring. In 1990-1991, aphids of one colony were released at three different infestation levels on each of four release date ...
DOI:
10.1093/jee/86.3.899

4. Furrow Diking Effects on Yield of Dryland Grain Sorghum and Winter Wheat

Author:
Haile Tewolde; J. R. Mulkey; Robert E. Elledge
Source:
Agronomy journal 1993 v.85 no.6 pp. 1217-1221
ISSN:
0002-1962
Subject:
Sorghum bicolor; Triticum aestivum; dryland farming; rain; water conservation; furrows; crop yield; Texas
Abstract:
... Dryland sorghum [Sorghum bicolor (L.) Moench] and wheat (Triticum aestivum L.) production in areas where a large fraction of the annual rainfall is received during the fallow period may be improved by rain-conserving practices. Furrow diking mainly during the growing season has been shown to improve crop production by conserving rainfall in many parts of the Southern Great Plains. The objectives o ...
DOI:
10.2134/agronj1993.00021962008500060023x

5. Logistic Response of Bermudagrass and Bunchgrass Cultivars to Applied Nitrogen

Author:
A. R. Overman; M. A. Sanderson; R. M. Jones
Source:
Agronomy journal 1993 v.85 no.3 pp. 541-545
ISSN:
0002-1962
Subject:
interspecific variation; cultivars; mathematical models; forage crops; Panicum coloratum; application rate; soil water content; Cynodon dactylon; arid zones; dry matter accumulation; crop yield; rain; growth models; Eragrostis curvula; Cenchrus ciliaris; nitrogen fertilizers; Texas
Abstract:
... Models provide a quantitative means to evaluate yield response of forage grasses to applied N and water availability. The objective of this analysis was to estimate model parameters (A, b, c) for bermu. dagrasses and bunchgrasses grown at the same location and during the same time period. The logistic equation was used to relate annual dry matter production to applied N for three bermudagrasses [C ...
DOI:
10.2134/agronj1993.00021962008500030004x

6. Nitrogen Fertilization Timing Effect on Wheat Production, Nitrogen Uptake Efficiency, and Residual Soil Nitrogen

Author:
Mercedes M. Alcoz; Frank M. Hons; Vincent A. Haby
Source:
Agronomy journal 1993 v.85 no.6 pp. 1198-1203
ISSN:
0002-1962
Subject:
plant tissues; application timing; nitrogen content; nitrogen; developmental stages; nutrient uptake; soil analysis; Triticum aestivum; yield components; split application; application rate; nitrogen fertilizers; Texas
Abstract:
... Split fertilizer N application has been proposed for improving N uptake efficiency in wheat (Triticum aestivum L.) production systems, but results have been inconsistent. In this field study, 75 and 150 kg N ha⁻¹ was applied either all preplant or in two, three, or four split applications based on wheat growth stage (GS) to determine N timing effect on wheat yield and apparent fertilizer N recover ...
DOI:
10.2134/agronj1993.00021962008500060020x

7. Nitrogen Nutrition of Rainfed Winter Wheat in Tilled and No-Till Sorghum and Wheat Residues

Author:
T. C. Knowles; B. W. Hipp; P. S. Graff; D. S. Marshall
Source:
Agronomy journal 1993 v.85 no.4 pp. 886-893
ISSN:
0002-1962
Subject:
crop residue management; no-tillage; dry environmental conditions; crop yield; application rate; Triticum aestivum; soil fertility; continuous cropping; cultivars; conventional tillage; nutrient deficiencies; grains; crop rotation; nitrogen fertilizers; nitrogen; nutrient availability; Sorghum bicolor; stover; Texas
Abstract:
... Decomposition of sorghum [Sorghum bicolor (L.) Moench] and wheat (Triticum aestivum L.) plant residues can immobilize enough surface-applied N to cause a deficiency in successive winter wheat crops. This experiment examined the effects of conventional and no-till grain sorghum and wheat residues on N requirements of dryland winter wheat. Field experiments conducted from 1987–1991 on an Austin silt ...
DOI:
10.2134/agronj1993.00021962008500040020x

8. Nonionic Surfactant and Supplemental Irrigation of Soybean on Crusting Soils

Author:
G. N. McCauley
Source:
Agronomy journal 1993 v.85 no.1 pp. 17-21
ISSN:
0002-1962
Subject:
Glycine max; crop yield; seeds; nonionic surfactants; sprinkler irrigation; phosphorus fertilizers; potassium fertilizers; adjuvants; hydrophobicity; application rate; Texas
Abstract:
... Agricultural land use in much of the Texas Coastal Prairie consists of 1 yr of rice (Oryza sativa L.) followed by 2 to 4 yr of native pasture. Replacing some of the native pasture with a cultivated rotational crop could benefit the area's agricultural base by reducing fixed costs and aiding pest management. Soybean [Glycine max (L.) Merr.] fits the crop rotation system well but yields are highly v ...
DOI:
10.2134/agronj1993.00021962008500010004x

9. Nonstructural Carbohydrate Utilization by Wheat Shaded during Grain Growth

Author:
J. R. Kiniry
Source:
Agronomy journal 1993 v.85 no.4 pp. 844-849
ISSN:
0002-1962
Subject:
filling period; inflorescences; stems; artificial shade; dry environmental conditions; stress response; dry matter accumulation; maturity stage; shade; Triticum aestivum; crop yield; grains; photosynthesis; light; leaves; Texas
Abstract:
... Wheat (Triticum aestivum L.) is commonly grown in dryland conditions, where environmental stress during grain filling can increase the dependency on stored assimilate. The objective of this study was to quantify the loss of total nonstructural carbohydrates (TNC) from wheat leaves and stems and the increase in seed dry mass when severe shading stress occurred after anthesis. Beginning 10 to 11 d a ...
DOI:
10.2134/agronj1993.00021962008500040013x

10. Registration of 'Bengal' rice

Author:
Linscombe, S.D.; Jodari, F.; McKenzie, K.S.; Bollich, P.K.; White, L.M.; Groth, D.E.; Dunand, R.T.
Source:
Crop science 1993 v.33 no.3 pp. 645-646
ISSN:
0011-183X
Subject:
Oryza sativa; early development; agronomic traits; crop yield; grains; high-yielding varieties; parentage; Texas; Arkansas; Louisiana; Mississippi
DOI:
10.2135/cropsci1993.0011183X003300030046x

11. Registration of 'Cypress' rice

Author:
Linscombe, S.D.; Jodari, F.; McKenzie, K.S.; Bollich, P.K.; White, L.M.; Groth, D.E.; Dunand, R.T.
Source:
Crop science 1993 v.33 no.2 pp. 355
ISSN:
0011-183X
Subject:
Oryza sativa; early development; agronomic traits; crop yield; grains; high-yielding varieties; parentage; Texas; Arkansas; Louisiana; Florida; Mississippi
DOI:
10.2135/cropsci1993.0011183X003300020039x

12. Registration of 'Rosemont' rice

Author:
Bollich, C.N.; Webb, B.D.; Marchetti, M.A.; Scott, J.E.
Source:
Crop science 1993 v.33 no.4 pp. 877
ISSN:
0011-183X
Subject:
cultivars; Oryza sativa; height; agronomic traits; crop yield; parentage; Texas; Arkansas; Louisiana; Mississippi
DOI:
10.2135/cropsci1993.0011183X003300040056x

13. Registration of 'Vernal' soybean

Author:
Hartwig, E.E.
Source:
Crop science 1993 v.33 no.5 pp. 1101
ISSN:
0011-183X
Subject:
planting date; Glycine max; early development; agronomic traits; crop yield; high-yielding varieties; parentage; Texas; Mississippi
DOI:
10.2135/cropsci1993.0011183X003300050046x

14. Residual Effects of Soil Profile Modification on Water Infiltration, Bulk Density, and Wheat Yield

Author:
Paul W. Unger
Source:
Agronomy journal 1993 v.85 no.3 pp. 656-659
ISSN:
0002-1962
Subject:
Triticum aestivum; crop yield; site preparation; soil texture; clay loam soils; soil profiles; soil density; bulk density; soil water content; water use efficiency; residual effects; preplanting treatment; grains; Texas
Abstract:
... Fine-textured soils of the Southern High Plains, of which Pullman (fine, mixed, thermic Torrertic Paleustolls) is the dominant series,/ have inherently low water infiltration rates. Pullman soils have a moderately permeable surface horizon overlying and slowly-permeable Bt horizon, which limits deep water penetration, thus hampering water conservation efforts and reducing water-use efficiencies Ib ...
DOI:
10.2134/agronj1993.00021962008500030025x

15. Rice Ratoon Crop Yield Linked to Main Crop Stem Carbohydrates

Author:
Fred T. Turner; Michael F. Fund
Source:
Crop science 1993 v.33 no.1 pp. 150-153
ISSN:
0011-183X
Subject:
Oryza sativa; cultivars; ratooning; crop yield; double cropping; stems; carbohydrates; nitrogen fertilizers; top dressings; heading; filling period; Texas
Abstract:
... Ratooning of rice (Oryza satira L.) may be agronomically possible in climates where the crop season is to short too produce two rice crops, but factors influencing ratoon rice yields are not well understood. The influence of main crop total nonstructural carbohydrate (TNC) and main crop N topdfessing on ratoon crop yield of four contrasting field-grown riee cultivars were evaluated in Texas during ...
DOI:
10.2135/cropsci1993.0011183X003300010027x

16. Stand Dynamics and Yield Components of Alfalfa as Affected by Phosphorus Fertility

Author:
Matt A. Sanderson; Ronald M. Jones
Source:
Agronomy journal 1993 v.85 no.2 pp. 241-246
ISSN:
0002-1962
Subject:
application rate; application methods; spatial distribution; Medicago sativa; phosphorus fertilizers; soil depth; plant density; plant establishment; yield components; density; roots; shoots; Texas
Abstract:
... Stand maintenance of alfalfa (Medicago sativa L.) relies on the persistence of the original plants. Yield (yield per plant, yield per shoot) and stand components (plants per square meter, shoots per square meter, shoots per plant) were studied in two experiments designed to determine yield response to P on a low P soil (Windthorst fine sandy loam; fine, mixed, thermic, Udic Paleustalfs) near Steph ...
DOI:
10.2134/agronj1993.00021962008500020015x

17. Wheat Planting Date Effects on Soil Water Extraction and Grain Yield

Author:
S. R. Winter; J. T. Musick
Source:
Agronomy journal 1993 v.85 no.4 pp. 912-916
ISSN:
0002-1962
Subject:
Triticum aestivum; soil water content; water uptake; flowering; dormancy; crop yield; seasonal variation; phenology; irrigated conditions; dry environmental conditions; sowing date; grains; Texas
Abstract:
... Due to a wide range of irrigated and dryland production systems and highly variable weather, planting date of winter wheat (Triticum aestivum L.) grown in the Southern High Plains varies from August to November. A 2-yr field study was conducted at Bushland, TX, to evaluate planting date effects on soil water extraction and grain yield. ‘TAM 107’ wheat was planted in late August to simulate a graze ...
DOI:
10.2134/agronj1993.00021962008500040024x