Search Results - "Joern, B.C"

Phosphorus loss in agricultural drainage: historical perspective and current research by Sims, J.T. (Univ. of Delaware, Newark, DE.), Simard, R.R, Joern, B.C

“…The importance of P originating from agricultural sources to the nonpoint source pollution of surface waters has been an environmental issue for decades…”
Get full text

Gypsum Amendment and Exchangeable Calcium and Magnesium Affecting Phosphorus and Nitrogen in Runoff by Favaretto, N, Norton, L.D, Joern, B.C, Brouder, S.M

“…Loss of N and P from soil to water is not only an agronomic but also an environmental and human health problem. The main objective of this study was to…”
Get full text

Long-Term Impact of Phosphorus and Potassium Fertilization on Alfalfa Yield and Yield Components by Berg, W.K, Cunningham, S.M, Brouder, S.M, Joern, B.C, Johnson, K.D, Santini, J.B, Volenec, J.J

“…Addition of P and K fertilizer can increase alfalfa (Medicago sativa L.) yield and stand persistence, but the yield components associated with P- and K-induced…”
Get full text

Dietary strategies for reduced phosphorus excretion and improved water quality by Maguire, R.O, Dou, Z, Sims, J.T, Brake, J, Joern, B.C

“…Cost effective feeding strategies are essential to deal with P surpluses associated with intensive animal agriculture and the consequent impact on water…”
Get full text

Influence of phosphorus and potassium on alfalfa yield and yield components by Berg, W.K, Cunningham, S.M, Brouder, S.M, Joern, B.C, Johnson, K.D, Santini, J, Volenec, J.J

“…Phosphorus and K fertilization increases alfalfa (Medicago sativa L.) yield and stand persistence, but the changes in yield components as affected by P and K…”
Get full text

Gypsum amendment and exchangeable calcium and magnesium effects on plant nutrition under conditions of intensive nutrient extraction by Favaretto, N, Norton, L.D, Brouder, S.M, Joern, B.C

“…In general, increasing the concentration of one cation species in soil solution can decrease levels of other cations in plants. It is not clear whether…”
Get full text

Influence of Phosphorus and Potassium on Alfalfa Yield, Taproot C and N Pools, and Transcript Levels of Key Genes after Defoliation by Berg, W.K, Cunningham, S.M, Brouder, S.M, Joern, B.C, Johnson, K.D, Volenec, J.J

“…Fertilization with K and P impacts alfalfa (Medicago sativa L.) yield, but how these nutrients influence taproot reserves and gene expression is unknown. Our…”
Get full text

Physiological genetics of alfalfa improvement: past failures, future prospects by Volenec, J.J., Cunningham, S.M., Haagenson, D.M., Berg, W.K., Joern, B.C., Wiersma, D.W.

“…The objective of this paper is to assess the effectiveness of alfalfa ( Medicago sativa L.) improvement efforts over the last century, and with the advent of…”
Get full text

Plant-available potassium assessment with a modified sodium tetraphenylboron method by Cox, A.E, Joern, B.C, Brouder, S.M, Gao, D

“…The conventional 1 M NH(4)OAc-exchangeable potassium (K(+)) soil test is inadequate in soils where nonexchangeable K(+) contributes significantly to crop…”
Get full text

Water-soluble phosphorus in fresh broiler litter is dependent upon phosphorus concentration fed but not on fungal phytase supplementation by Applegate, T.L, Joern, B.C, Nussbaum-Wagler, D.L, Angel, R

“…This experiment determined the effects of different phosphorus (P) feeding programs on total and water-soluble P excretion by broilers. Ross 308, male broilers…”
Get full text

Autumn Defoliation Effects on Alfalfa Winter Survival, Root Physiology, and Gene Expression by Haagenson, D. M., Cunningham, S. M., Joern, B. C., Volenec, J. J.

“…Harvesting alfalfa (Medicago sativa L.) after mid‐September in the North‐Central USA often reduces plant winter survival, but the physiological mechanisms…”
Get full text

Release kinetics of nonexchangeable potassium in soils using sodium tetraphenylboron by Cox, A.E. (Purdue University, West Lafayette, IN.), Joern, B.C

Get full text

Nonexchangeable ammonium and potassium determination in soils with a modified sodium tetraphenylboron method by Cox, A. E., Joern, B. C., Roth, C. B.

“…The mechanism of NH4+ and K+ fixation by clay minerals is similar, yet different analytical methods are used to estimate nonexchangeable (fixed) amounts of…”
Get full text

Effects of phosphorus nutrition on carbohydrate and protein metabolism in alfalfa roots by Li, R, Volenec, J.J, Joern, B.C, Cunningham, S.M

“…Alfalfa (Medicago sativus L.) root reserves are thought to provide nutrients to regrowing shoots, enhance stress tolerance, and improve plant persistence…”
Get full text

Seedling development and deposition of starch and storage proteins in alfalfa roots by Kalengamaliro, N.E, Volenec, J.J, Cunningham, S.M, Joern, B.C

“…The physiological basis for defoliation tolerance in alfalfa (Medicago sativa L.) is associated with taproot organic reserves, including soluble sugars,…”
Get full text

Potassium and nitrogen effects on carbohydrate and protein metabolism in alfalfa roots by Li, R. (Purdue University, West Lafayette, IN.), Volenec, J.J, Joern, B.C, Cunningham, S.M

“…An investigation was conducted to determine the effect of potassium (K) nutrition on alfalfa (Medicago sativa L.) growth and metabolism of root total…”
Get full text