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| Registros recuperados: 28 | |
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| Dasbak,Madang A; Echezona,Bonaventure C; Asiegbu,Jerry E. |
| The widespread adoption of cropping systems that are sustainable and environmentally friendly is vital for the macroeconomic survival of civilization. Intercropping could ensure stability of insect populations in a system. A 3-yr (2005-2007) field trial was therefore carried out in Nigeria under regular and ratoon crops to evaluate five recently developed pigeon pea (Cajanus cajan [L.] Huth) genotypes (ICPL 87, ICPL 161, ICPL 85063, ICP 7120, and ICPL 87119) from the International Crops Research Institute for Semi-Arid Tropics (ICRISAT) and one local variety for their relative performance and susceptibility to insect pests. The pigeon pea genotypes were in a mixture with two maize genotypes (Zea mays L., open-pollinated and hybrid) in regular crops for 2... |
| Tipo: Journal article |
Palavras-chave: Cropping system; Ratoon crops; Regular crop. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000100008 |
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| Nyangweso, P.M.; Odmori, Paul Okelo; Mapelu, M.Z.; Odhiambo, Mark O.. |
| Simulation models have been used successfully to forecast productivity of cropping systems under various weather, management and policy scenarios. These models have helped farmers make efficient resource allocation decisions. However, in Kenya simulation models have not been used extensively and more specifically in modeling large scale cropping systems. The study aimed at forecasting productivity and profitability of wheat cropping systems in Uasin Gishu district, Kenya. Both primary and secondary data were used. Both time series and cross-sectional data for variables of interest were collected and complemented by a survey of 20 wheat farmers who were systematically selected to verify information obtained from secondary sources. Cropping Systems... |
| Tipo: Journal Article |
Palavras-chave: Wheat; Cropping system; Simulation; Forecasting; Productivity; Profits; Crop Production/Industries. |
| Ano: 2010 |
URL: http://purl.umn.edu/95960 |
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| Robledo-Buriticá,Jacobo; Aristizábal-Loaiza,Juan Carlos; Ceballos-Aguirre,Nelson; Cabra-Cendales,Teresa. |
| Abstract This study shows the effect of three plant growth-promoting rhizobacteria (PGPR) strains of the genus Bacillus on blackberry (Rubus glaucus Benth.) development under semi cover and field conditions (cropping systems). Endogenous strain Bacillus subtilis GIBI-200, B. pumilus GIBI-206, its mixture (B. subtilis GIBI-200 + B. pumilus GIBI-206), and commercial strain B. subtilis QST-713 were compared to conventional mineral fertilization (Control) in each cropping system. Field condition system presented higher values (P<0.001) than semi cover in: total number of branches (7.32), number of productive branches (7.0), flowers per raceme (26.2), and the lowest percentage of unproductive branches (6.1%). Significant differences (P<0.05) were obtained... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biofertilizers; Cropping system; Fruitculture; Plastic film covers; Soil microorganisms; Symbiosis. |
| Ano: 2018 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122018000200258 |
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| Sommer, Rolf; Djanibekov, Nodir; Salaev, Omonbek. |
| Land use and crop production in the Khorezm region in western Uzbekistan, exemplarily for the irrigated low-lands of Central Asia, is adversely affected by the excessive, non-sustainable use of irrigation water on one hand, repeated droughts on the other hand, and by soil degradation by secondary salinization. One of the research objectives of the German-Uzbek Khorezm project, funded by the German Ministry for Education and Research (BMBF) and led by ZEF, is to better understand options for land use and choice of technology at the farm level in order to evaluate and propose technological alternatives and policy options for sustainable land use in Khorezm. To address the latter, the integrated so-called Farm-Level Economic-Ecological Optimization Model... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Sustainability of agro-ecosystems; Integrated biophysical-economic modeling; Cropping system; Land use planning; Policy assessment; Agribusiness; Agricultural and Food Policy; Q12; O13; O21; Q18. |
| Ano: 2010 |
URL: http://purl.umn.edu/92546 |
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| Wamser,Anderson Fernando; Valmorbida,Janice; Suzuki,Atsuo; Hahn,Leandro; Mueller,Siegfried; Becker,Walter F; Feltrim,Anderson Luiz; Ender,Marcos M. |
| ABSTRACT We aimed to determine an adequate planting density and arrangement for the mechanized spraying of vertically staked tomatoes. Two experiments were carried out in the 2013/14 and 2014/15 harvests in the city of Calmon, state of Santa Catarina, Brazil, both in randomized block design. In 2013/14, treatments were arranged in a 4x2 factorial, corresponding to four planting densities (10,753, 12,903, 16,129 and 21,505 plants/ha) and two planting arrangements (single and double rows). In 2014/15, treatments were arranged in a 5x2 factorial, corresponding to five plant densities (the same planting densities of the previous harvest beyond 32,258 plants/ha) and the same planting arrangements. Total, marketable (considering extra AA and extra A fruits as... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Solanum lycopersicon; Cropping system; Mechanization; Disease severity; Economic analysis. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362017000400519 |
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| Rech,Tássio Dresch; Zanette,Flávio; Zanatta,João Claudio; Nuernberg,Névio João; Brandes,Dieter. |
| The species Salix x rubens is being grown on the Southern Plateau of Santa Catarina since the 1940s, but so far the soil fertility requirements of the crop have not been assessed. This study is the first to evaluate the production profile of willow plantations in this region, based on the modified method of Summer & Farina (1986), for the recommendation of fertility levels for willow. By this method, based on the law of Minimum and of Maximum for willow production for the conditions on the Southern Plateau of Santa Catarina, the following ranges could be recommended: pH: 5.0-6.5; P: 12-89 mg dm-3; Mg: 3.2-7.5 mg; Zn: 5.0-8.3 mg dm-3; Cu: 0.8-4.6 mg dm-3; and Mn; 20-164 mg dm-3. The Ca/Mg ratio should be between 1.2 and 2.9. For K and Ca only the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Salix x rubens; Nutritional diagnosis; Cropping system. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832012000300018 |
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| Registros recuperados: 28 | |
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