Издательство Taylor&Francis по журналам "Acta Agriculturae Scandinavica, Section B – Soil & Plant Science"
Отображаемые элементы 1-20 из 205
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A Comparison of the Leachable Inorganic Nitrogen Content in Organic and Conventional Farming Systems(Taylor & Francis Group, 1994-03-01)Soil samples collected from 26 organic and 550 conventional farms during autumn 1990 through the national Grid Net Survey (GNS) and a simultaneous supplementary survey on 8 organic farms have been analyzed in order to ...
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(Taylor & Francis Group, 1995-03-01)An Agrobacterium tumefaciens -mediated transformation procedure was developed for the non tuber-bearing, diploid wild potato species Solanum brevidens, and the tetraploid S. tuberosum cv. Pito. Cointegrative transformation ...
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(Taylor & Francis Group, 1992-12-01)A method for the determination of hordenine, gramine, 5-methoxy-N,N-dimethyltryptamine and N-methyltryptamine in reed canarygrass is described. The material is chopped into pieces, 0.5–1 cm, and extracted overnight in 20% ...
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(Taylor & Francis Group, 1996-06-01)The persulphate oxidation (TPN) and the Kjeldahl methods (TKN) were compared for measurement of total N in soils and soil extracts. The TPN method was adapted for optimum recovery and precision in the determination of total ...
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(Taylor & Francis Group, 1994-03-01)A new micrometeorological method for measuring ammonia emission and/or deposition has been developed. The method is based on the stirred dynamic chamber technique in combination with passive diffusion samplers. Measurements ...
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(Taylor & Francis Group, 1996-06-01)Experimental results indicate the existence of an inducible system that can temporarily help cereal plants to defend themselves against cereal aphids. The induction is released by volatiles emitted when aphids attack a ...
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(Taylor & Francis Group, 1992-09-01)A preliminary comparative phosphate sorption and mobility study of two almost identical Danish spodosols, a fertilized soil having received ≈ 1030 kg P/ha over 45 years and a non-fertilized soil, showed no indication of ...
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(Taylor & Francis Group, 1994-03-01)
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(Taylor & Francis Group, 1996-06-01)The botanical composition of grass fields in Iceland was investigated during the years 1990-1993. The investigation included 1294 grass fields on 191 farms. More than 50 species were recorded. The most common species were ...
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(Taylor & Francis Group, 1992-12-01)A survey of recent progress in various biotechnological areas, on various Brassica crops, is presented. Wide hybridization and subsequent culture of embryos, ovaries and ovules can facilitate sexual gene transfer between ...
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(Taylor & Francis Group, 1993-06-01)Agronomic and quality data from three winter wheat (Triticum aestivum L.) lines, selected from polymorphic breeding population An b7780 grown at Helsinki University (Viikki) were analyzed to determine the effect of nitrate ...
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(Taylor & Francis Group, 1996-12-01)Concentrations of cadmium in agricultural soils in the province of Skåne, southern Sweden, were shown to vary with geological substratum. The highest levels were found in areas dominated by Cambrian bedrock. Significant ...
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(Taylor & Francis Group, 1995-03-01)Effects of repeated applications of different P fertilizers on Cd availability to plants were studied. A sandy and a loam soil were treated with lime to achieve three pH levels. Oat (Avena sativa L.), ryegrass (Lolium ...
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(Taylor & Francis Group, 1996-12-01)The guideline level for Cd contents in cereals of 100 μg kg−1 proposed by the Codex Committee on Cereals, Pulses and Legumes has increased concern regarding Cd levels in Swedish winter wheat. In this study, Cd levels in ...
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(Taylor & Francis Group, 1995-09-01)Four rates of straw (0, 4, 8 and 12 t ha−1 yr−1) were incorporated in a field experiment with continuous spring barley. The experiment was conducted on a sandy soil (5.5% clay) and a sandy loam soil (11.2% clay). After ...
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(Taylor & Francis Group, 1993-09-01)A field experiment with leek was conducted in 1990 and 1991. Plant weight and the contents of nitrate and dry matter of the leek were measured on ten successive harvest dates each year. The yield of dry matter per square ...
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(Taylor & Francis Group, 1994-09-01)It has been shown that increased grain yield of modern cereal cultivars is associated with impaired phenotypic stability. This study, consisting of 19 Finnish and Nordic oat (Avena saTiva L.) genotypes, confirmed this and, ...
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(Taylor & Francis Group, 1992-06-01)Alum shale and till soils overlying alum shale bedrock were analysed for aqua regia and NH4OAc/EDTA extractable Pb, Cu, Zn, Ni, Mn and Cd. The means of these determinations were compared with those of Norwegian, Finnish ...
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(Taylor & Francis Group, 1992-12-01)Ten blackcurrant cultivars were evaluated for some quality components. On average, the sugar content was 9.0%, of which fructose made up 45%, glucose 40% and sucrose 15%. Soluble solids were 15.4% as an average for the ten ...
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(Taylor & Francis Group, 1995-09-01)The study aims at determining the importance of various soil components on cobalt retention by Spodosols. Therefore, Co sorptions and extractions were carried out on samples from the B horizon in six Danish Spodosols. The ...
Отображаемые элементы 1-20 из 205