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Bladzijde 1 van 117 resultaten
The effects of urea-treated potato pulp (PP) ensiled with beet pulp or wheat bran pellets to reduce moisture of PP and flake density of corn grain supplemented with the PP silage on digestibility and ruminal fermentation in beef steers.
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The effects of adding beet pulp or wheat bran to urea-treated potato pulp (PP) in order to reduce moisture of PP silage and flake density of corn grain on digestibility and ruminal fermentation in beef steers were studied in a split-plot design experiment. The whole-plot treatments were PP silage
Nitrate leaching and nitrogen recovery following application of polyolefin-coated urea to potato.
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High N fertilizer and irrigation amounts applied to potato (Solanum tuberosum L.) on coarse-textured soils often result in nitrate (NO3) leaching and low recovery of applied fertilizer N. This 3-yr study compared the effects of two rates (140 and 280 kg N ha(-1)) of a single polyolefin-coated urea
Solubilization of UDP-glucose-specific starch synthetase in sweet-potato (Ipomoea batatas) starch granules by the urea/pullulanase method.
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The ADP-glucose- or UDP-glucose-specific starch synthetase bound to sweet-potato (Ipomoea batatas) starch granules is localized in the granules, and the UDP-glucose-specific enzyme was solubulized by urea/pullulanase treatment of the starch granules.
Effects of polymer-coated urea on nitrate leaching and nitrogen uptake by potato.
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Increasing groundwater nitrate concentrations in potato (Solanum tuberosum L.) production regions have prompted the need to identify alternative nitrogen management practices. A new type of polymer-coated urea (PCU) called Environmentally Smart Nitrogen (Agrium, Inc., Calgary, AB) is significantly
Responses of root physiological characteristics and yield of sweet potato to humic acid urea fertilizer.
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Humic acid (HA), not only promote the growth of crop roots, they can be combined with nitrogen (N) to increase fertilizer use efficiency and yield. However, the effects of HA urea fertilizer (HA-N) on root growth and yield of sweet potato has not been widely investigated. Xushu 28 was used as the
Leaf urea metabolism in potato. Urease activity profile and patterns of recovery and distribution of (15)N after foliar urea application in wild-type and urease-antisense transgenics.
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The influence of urease activity on N distribution and losses after foliar urea application was investigated using wild-type and transgenic potato (Solanum tuberosum cv Désirée) plants in which urease activity was down-regulated. A good correlation between urease activity and (15)N urea metabolism
The effects of inclusion levels of urea-treated potato pulp silage in concentrate and roughage sources on finishing performance and carcass quality in cull beef cows.
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ABSTRACT An experiment was conducted to determine the effects of inclusion levels of potato pulp silage in concentrate (0, 15, 30 or 45%; on a dry matter basis) and roughage sources (rice straw or wheat straw) on finishing performance and carcass quality of cull beef cows. Sixteen Japanese Black
Inhibition of O2 evolution by NADP in isolated potato tuber chloroplast and its identity with 3-(3,4-dichlorophenyl)-1,1-dimethyl urea inhibition site.
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Adsorption of methylene blue by potato starch. Effect of methanol, dioxane, sucrose, and urea in aqueous systems.
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Separation and infectivity of circular and linear forms of potato spindle tuber viroid.
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Potato spindle tuber viroid can be separated into two fractions by polyacrylamide gelelectrophoresis in the presence of formamide and urea. One fraction contains predominantly circular molecules; the second fraction contains almost exclusively linear molecules. The purity of the fractions was
Evidence for a single infectious species of potato spindle tuber viroid.
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Potato spindle tuber viroid (PSTV) has been separated into two electrophoretic species on polyacrylamide gels containing 8 M urea at 60 degrees. Only the slower-migrating electrophoretic form was infectious and is presumably the circular form of the molecule. Both forms had similar base compositions
Potato tubers contamination with nitrate under the influence of nitrogen fertilizers and spray with molybdenum and salicylic acid.
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A field trial was conducted through 2015 and 2016 growing seasons to study the effect of nitrogen fertilizer sources and foliar spray with molybdenum (Mo), salicylic acid (SA) and their combination on tubers yield, some chemical constituents, nutrients uptake, nitrate accumulation and nitrate
Recombinant Cry3Aa has insecticidal activity against the Andean potato weevil, Premnotrypes vorax.
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The Andean potato weevil, Premnotrypes vorax, an insect of the order Coleoptera, is a major cause of damage to potato crops in the Andean regions of South America. The insecticidal Cry proteins from Bacillus thuringiensis are useful biological pesticides, and some are toxic to Coleopteran insects.
Reduced viability of Colorado potato beetle, Leptinotarsa decemlineata, eggs exposed to novaluron.
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BACKGROUND
Novaluron is a benzoylphenyl urea chitin synthesis inhibitor that combines good activity against larval stages of the Colorado potato beetle, Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae), with low mammalian toxicity. Previous studies suggest that it has deleterious
Amino acid sequence around the pyridoxal 5'-phosphate binding site in potato phosphorylase.
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The amino acid sequence around the pyridoxal 5'-phosphate binding site in potato phosphorylase was determined in order to compare it with those in phosphorylases from other sources having different regulatory properties. The potato enzyme was reduced by NaBH4 in the presence of urea,
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