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You searched for: Journal Acta agriculturæ Scandinavica Remove constraint Journal: Acta agriculturæ Scandinavica Publication Year 2013 Remove constraint Publication Year: 2013 Source 2013 v.63 no.6 Remove constraint Source: 2013 v.63 no.6
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1. Availability of phosphorus in greenhouse cropping systems with tomatoes – influence of soil and citric acid

Author:
Båth, Birgitta; Otabbong, Erasmus
Source:
Acta agriculturæ Scandinavica 2013 v.63 no.6 pp. 483-488
ISSN:
1651-1913
Subject:
aluminum; blood meal; citric acid; cropping systems; crops; dissolved organic carbon; fertilizers; greenhouses; growers; iron; irrigation water; leaves; nitrogen content; pH; phosphorus; sap; silage; soil; soil analysis; soil organic carbon; tomatoes; vinasse; zinc
Abstract:
... Analyses of plant sap from organic greenhouse tomato crops show that the levels of phosphorus (P) are frequently low, despite the fact that soil analyses indicate P status in the soil to be good. In the present study, two soils (A and B) with a pH of just over 6 and a high total content of N and P were investigated with respect to release of P and uptake in a tomato crop. The fertilisers primarily ...
DOI:
10.1080/09064710.2013.804115

2. A wide view of no-tillage practices and soil organic carbon sequestration

Author:
Yang, Xueming; Drury, Craig F.; Wander, Michelle M.
Source:
Acta agriculturæ Scandinavica 2013 v.63 no.6 pp. 523-530
ISSN:
1651-1913
Subject:
carbon dioxide; agricultural soils; greenhouse gases; mineralization; no-tillage; soil organic carbon; conventional tillage; water conservation; crop residues; production technology; carbon sinks; carbon sequestration; crop yield; global warming; soil erosion; soil sampling; soil water
Abstract:
... Many believe that conservation tillage practices could increase the sequestration of atmospheric carbon dioxide into agricultural soils and this sequestered carbon may partially offset the greenhouse gas effect and thus reduce the impact of global warming. Recent advances in soil carbon (C) and greenhouse gas analysis have made it possible to evaluate the impacts of conservation tillage on C seque ...
DOI:
10.1080/09064710.2013.816363

3. Colonization of Clonostachys rosea on soybean root grown in media inoculated with Fusarium graminearum

Author:
Pan, F.; Xue, Allen G.; McLaughlin, Neil B.; Li, S.; Xu, Y.; Zhao, D.; Qu, H.
Source:
Acta agriculturæ Scandinavica 2013 v.63 no.6 pp. 564-569
ISSN:
1651-1913
Subject:
Clonostachys rosea; Fusarium graminearum; biological control agents; crops; fungi; growing media; plant pathogens; planting; root rot; roots; soybeans; tap roots; Canada
Abstract:
... Soybean root rot, caused by Fusarium graminearum , is an important disease in Canada. Clonostachys rosea has been reported to provide protection against plant pathogens in different crops. The objectives of this study were to determine if a strain of C. rosea , ACM 941, can colonize soybean root that were grown in media inoculated with F. graminearum , and to determine if the distribution of C. ro ...
DOI:
10.1080/09064710.2013.816768

4. Conventional tillage increases soil microbial biomass and activity in the Loess Plateau, China

Author:
Guo, Ding; Li, Xudong; Li, Xiaodong; Wang, Jing; Fu, Hua
Source:
Acta agriculturæ Scandinavica 2013 v.63 no.6 pp. 489-496
ISSN:
1651-1913
Subject:
land use change; nitrogen content; soil organic carbon; cropland; conventional tillage; millets; nitrogen; grazing; soil quality; microbial biomass; soil; grasslands; China
Abstract:
... Land-use change can affect the quantity and quality of soil organic matter (SOM) as well as soil microbial biomass and activity. Land use in the Loess Plateau has undergone great changes in the past five decades. To understand the effects of these changes on soil chemical and biological properties in the Loess Plateau, we determined soil organic carbon (SOC), total nitrogen (TN), soil microbial bi ...
DOI:
10.1080/09064710.2013.807356

5. Effects of seedbed properties on crop emergence. 6. Requirements of crops with small seeds

Author:
Håkansson, Inge; Arvidsson, Johan; Etana, Ararso; Rydberg, Tomas; Keller, Thomas
Source:
Acta agriculturæ Scandinavica 2013 v.63 no.6 pp. 554-563
ISSN:
1651-1913
Subject:
Beta vulgaris; Brassica napus; Brassica rapa; Phleum pratense; Sinapis alba subsp. alba; Trifolium pratense; clay; clay loam soils; crops; fine-textured soils; plant available water; risk; seedbeds; seeds; sowing; sugar beet; weather; wilting point
Abstract:
... The effects of seedbed properties on emergence of various crops were studied in a series of experiments. Results for crops with seeds weighing <7 mg are reported here. The experiments were carried out in shallow plastic boxes placed directly on the ground in the field. Small seeds require shallow sowing, which is a great disadvantage in the event of dry weather after sowing, particularly on clay a ...
DOI:
10.1080/09064710.2013.822540

6. Estimation of carbon carrying capacity in the Yanhe River catchment of China's Loess Plateau

Author:
Shi, Haijing; Wen, Zhongming; Paull, David
Source:
Acta agriculturæ Scandinavica 2013 v.63 no.6 pp. 543-553
ISSN:
1651-1913
Subject:
accounting; carbon; carbon sequestration; carbon sinks; carrying capacity; ecosystems; issues and policy; landscapes; loess; models; planning; prediction; rivers; watersheds; China
Abstract:
... Estimation of carbon carrying capacity (CCC) can provide a reliable reference for the prediction of carbon sequestration potential by comparing it with the existent carbon stock, which is critical to the development of mitigation strategies and effective policies. The objectives of the present study were to approximate the CCC in a loess hilly region in China's Loess Plateau, analyse its change wi ...
DOI:
10.1080/09064710.2013.820786

7. Factors affecting development and overwintering of second generation Colorado Potato Beetle (Coleoptera: Chrysomelidae) in Estonia in 2010

Author:
Hiiesaar, Külli; Jõgar, Katrin; Williams, Ingrid H.; Kruus, Eha; Metspalu, Luule; Luik, Anne; Ploomi, Angela; Eremeev, Viacheslav; Karise, Reet; Mänd, Marika
Source:
Acta agriculturæ Scandinavica 2013 v.63 no.6 pp. 506-515
ISSN:
1651-1913
Subject:
Leptinotarsa decemlineata; adults; cultivars; diapause; heat sums; overwintering; oviposition; photoperiod; potatoes; prediction; summer; temperature; univoltine habit; Estonia
Abstract:
... We have established for the first time that Colorado potato beetle (CPB) (Leptinotarsa decemlineata Say) (Coleoptera: Chrysomelidae) produced a distinct second generation in 2010 in Estonia. This species has a history, in Estonia, of less than 50 years. Due to their great ability to adapt to variable environmental conditions, the beetles spread very quickly throughout the country and established a ...
DOI:
10.1080/09064710.2013.811536

8. Large differences in soil phosphorus solubility after the application of compost and biosolids at high rates

Author:
Bøen, Anne; Haraldsen, Trond Knapp; Krogstad, Tore
Source:
Acta agriculturæ Scandinavica 2013 v.63 no.6 pp. 473-482
ISSN:
1651-1913
Subject:
Lolium perenne; acid soils; aluminum; application rate; biosolids; composts; iron; pH; phosphorus; sewage sludge; sewage treatment; solubility; sorption
Abstract:
... Phosphorus (P) solubility was studied in a sandy loam after the application of high and increasing application rates (40, 80 and 120 tonnes DM ha ⁻¹) of two composts and two biosolids (treated sewage sludge). In 7.5-L pots, the products were mixed into the soil (pH 6.2) and perennial ryegrass was sown. After two years, the soil was analysed for P AL, water-extractable P (P w), pH and oxalate-extra ...
DOI:
10.1080/09064710.2013.801508

9. Morphology, dry matter yield and phenological characters at different maturity stages of ×Festulolium compared with other grass species

Author:
Østrem, Liv; Volden, Birger; Larsen, Arild
Source:
Acta agriculturæ Scandinavica 2013 v.63 no.6 pp. 531-542
ISSN:
1651-1913
Subject:
harvest date; cultivars; grasses; winter hardiness; diploidy; Lolium perenne; breeding; Phleum pratense; Festuca pratensis; dry matter accumulation; digestibility; Festulolium; heading; vegetative growth; Norway
Abstract:
... The potential of× Festulolium as a forage species for Nordic conditions was investigated by comparing Norwegian candivars (LpFp-T, LmFp-T, Lp Fᵖ-D-N, Lp Fᵖ-D-UK) differing in parental origin and ploidy level with commercial cultivars of× Festulolium (Hykor, Felopa), the parental species perennial ryegrass (Lolium perenne L.) and meadow fescue (Festuca pratensis L.), and timothy (Phleum pratense L. ...
DOI:
10.1080/09064710.2013.819440

10. Screening tomato genotypes for adaptation to high temperature in West Africa

Author:
Kugblenu, Yvonne O.; Oppong Danso, Eric; Ofori, Kwadjo; Andersen, Mathias N.; Abenney-Mickson, Stephen; Sabi, Edward B.; Plauborg, Finn; Abekoe, Mark K.; Ofosu-Anim, John; Ortiz, Rodomiro; Jørgensen, Søren T.
Source:
Acta agriculturæ Scandinavica 2013 v.63 no.6 pp. 516-522
ISSN:
1651-1913
Subject:
cultivars; farmers; flowering; flowers; fruit growing; fruit yield; fruits; genotype; greenhouse experimentation; heat; heat stress; heat tolerance; night temperature; nutritive value; open pollination; physiological response; screening; tomatoes; tropics; Ghana
Abstract:
... Tomato is an important vegetable widely grown in the tropics due to its nutritional value and financial benefits for farmers. In Ghana, there is an undersupply caused by production ceasing entirely from October to May due to high temperatures. Heat stress has been reported to cause excessive flower drop leading to drastic reduction in yield; however, genotypic differences in heat tolerance exist i ...
DOI:
10.1080/09064710.2013.813062

11. Switchgrass root exudates have allelopathic potential on lettuce germination and seedling growth

Author:
An, Yu; Ma, Yongqing; Shui, Junfeng
Source:
Acta agriculturæ Scandinavica 2013 v.63 no.6 pp. 497-505
ISSN:
1651-1913
Subject:
Lactuca sativa; Panicum virgatum; allelochemicals; biofuels; cluster analysis; cultivars; ecotypes; forage; germination; grasses; indigenous species; lettuce; root exudates; seedling growth; seeds; China; Illinois
Abstract:
... Non-native plant species may inhibit the growth of native vegetation either by competing for resources or by secreting allelochemicals. Switchgrass (Panicum virgatum L.), a perennial grass that is adaptable to a wide range of environments, has recently been introduced to China's Loess Plateau as a forage and as a biofuel source. In this study, we assayed the allelopathic potential of root exudates ...
DOI:
10.1080/09064710.2013.810770