Search Results - "Johnson, V G"

Optical sensor-based algorithm for crop nitrogen fertilization by Raun, W.R, Solie, J.B, Stone, M.L, Martin, K.L, Freeman, K.W, Mullen, R.W, Zhang, H, Schepers, J.S, Johnson, G.V

“…Nitrogen (N) fertilization for cereal crop production does not follow any kind of generalized methodology that guarantees maximum nitrogen use efficiency…”
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Evaluation of green, red, and near infrared bands for predicting winter wheat biomass, nitrogen uptake, and final grain yield by Moges, S.M, Raun, W.R, Mullen, R.W, Freeman, K.W, Johnson, G.V, Solie, J.B

“…Presently normalized difference vegetative indexes (NDVI) based on red (RNDVI) or green (GNDVI) reflectance are commonly used to evaluate plant health,…”
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Nitrogen Response Index as a Guide to Fertilizer Management by Johnson, G. V., Raun, W. R.

“…The efficiency with which fertilizer-nitrogen (N) is transferred to grain-N in cereals is usually less than 50% and averages 33% worldwide. Two long-term N…”
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Inhibition of iron deficiency stress response in cucumber by rare earth elements by Johnson, G.V., Barton, L.L.

“…We investigated the influence of the trivalent scandium (Sc), chromium (Cr), gallium (Ga), yttrium (Y) and lanthanum (La) on both the function and activity of…”
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The role of microtubule-associated protein 2 (MAP-2) in neuronal growth, plasticity, and degeneration by Johnson, G V, Jope, R S

“…Microtubule associated protein 2 (MAP-2) historically has been perceived primarily as a static, structural protein, necessary along with other cytoskeletal…”
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Switchgrass response to harvest frequency and time and rate of applied nitrogen by Thomason, W.E, Raun, W.R, Johnson, G.V, Taliaferro, C.M, Freeman, K.W, Wynn, K.J, Mullen, R.W

“…Switchgrass (Panicum virgatum L.) is currently being evaluated as a raw material for producing fuel, chemicals, and electricity. Switchgrass biomass is bound…”
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Optical sensing of turfgrass chlorophyll content and tissue nitrogen by Bell, G.E, Howell, B.M, Johnson, G.V, Raun, W.R, Solie, J.B, Stone, M.L

“…Differences in soil microenvironment affect the availability of N in small areas of large turfgrass stands. Optical sensing may provide a method for assessing…”
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Phosphorylation by cAMP-dependent protein kinase inhibits the degradation of tau by calpain by Litersky, J M, Johnson, G V

“…The effects of cAMP-dependent protein kinase (cAMP-PK) phosphorylation on the degradation of the microtubule-associated protein tau by calpain were studied…”
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Influence of buffers on pesticide and nutrient runoff from Bermudagrass turf by Cole, J.T, Baird, J.H, Basta, N.T, Huhnke, R.L, Storm, D.E, Johnson, G.V, Payton, M.E, Smolen, M.D, Martin, D.L, Cole, J.C

“…Buffer length (0, 2.4, and 4.9 m), mowing height (1.3 and 3.8 cm), and solid-tine aerification were evaluated to reduce pesticide and nutrient runoff from…”
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Growth stage, development, and spatial variability in corn evaluated using optical sensor readings by Raun, W.R, Solie, J.B, Martin, K.L, Freeman, K.W, Stone, M.L, Johnson, G.V, Mullen, R.W

“…Knowing the exact stage of growth where expressed plant variability is at a maximum might lead to the identification of times when in-season fertilization…”
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Microvariability in soil test, plant nutrient, and yield parameters in bermudagrass by Raun, W.R. (Oklahoma State University, Stillwater, OK.), Solie, J.B, Johnson, G.V, Stone, M.L, Whitney, R.W, Lees, H.L, Sembiring, H, Phillips, S.B

“…The scale or resolution where distinct differences in soil test and yield parameters can be detected has not been thoroughly evaluated in crop production…”
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Glycogen synthase kinase-3β, β-catenin, and tau in postmortem bipolar brain by LESORT, M, GREENDORFER, A, STOCKMEIER, C, JOHNSON, G. V. W, JOPE, R. S

“…Therapeutic concentrations of the anti-bipolar drug lithium inhibit the activity of glycogen synthase kinase-3 beta , which raises the possibility that this…”
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Effect of long-term N fertilization on soil organic C and total N in continuous wheat under conventional tillage in Oklahoma by Raun, W.R, Johnson, G.V, Phillips, S.B, Westerman, R.L

“…Fertilizer nitrogen (N) can impact on soil total N and organic carbon (C). The effects of long-term nitrogen (N) applications in continuous winter wheat (…”
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Late-season Prediction Of Wheat Grain Yield And Grain Protein by Freeman, K. W., Raun, W. R., Johnson, G. V., Mullen, R. W., Stone, M. L., Solie, J. B.

“…Pre-harvest prediction of winter wheat (Triticum aestivum L.) grain yield and/or protein could assist farmers in generating yield maps and reliable product…”
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Production System Techniques to Increase Nitrogen Use Efficiency in Winter Wheat by Thomason, W. E., Raun, W. R., Johnson, G. V., Freeman, K. W., Wynn, K. J., Mullen, R. W.

“…Most current research on winter wheat (Triticum aestivum L.) focuses on increasing yields of either grain or plant biomass. Increased production costs and…”
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Turf area mapping using vehicle-mounted optical sensors by BELL, G. E, MARTIN, D. L, STONE, M. L, SOLIE, J. B, JOHNSON, G. V

“…Environmental concerns require turf managers to minimize the amount of nutrients and pesticides used for turf maintenance. Vehiclemounted optical sensing…”
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Improving Nitrogen Use Efficiency for Cereal Production by Raun, William R., Johnson, Gordon V.

“…Worldwide, nitrogen use efficiency (NUE) for cereal production (wheat, Triticum aestivum L.; corn, Zea mays L.; rice, Oryza sativa L. and O. glaberrima Steud.;…”
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Alfalfa Yield Response to Nitrogen Applied After Each Cutting by Raun, W. R., Johnson, G. V., Phillips, S. B., Thomason, W. E., Dennis, J. L., Cossey, D. A.

“…Although alfalfa (Medicago sativa L.) usually obtains a high percentage of its required N via symbiotic N fixation, additional fertilizer N applied once in the…”
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Intercondylar fractures of the femur in the elderly: a treatment option by Agarwal, Sanjeev, Tulwa, N, Johnson, G.V

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Fertilizer nitrogen recovery in long-term continuous winter wheat by Raun, W.R, Johnson, G.V, Westerman, R.L

“…Fertilizer N recovery in crop production systems seldom exceeds 50%. Two long-term winter wheat (Triticum aestivum L.) experiments were selected for use of…”
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