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Registros recuperados: 33
Primeira ... 12 ... Última
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Adaptação da quinoa (Chenopodium quinoa Willd.) para incrementar a diversidade agrícola e alimentação no Brasil. Repositório Alice
SPEHAR, C.R..
O cultivo da quinoa (Chenopodium quinoa Willd.), uma espécie da família Chenopodiaceae de introdução recente no Brasil, tem despertado interesse por causa de grandes esforços em pesquisa, experimentação e desenvolvimento, durante os últimos 15 anos. Por tratar-se de planta nova na agricultura brasileira, ainda que apresente grandes perspectivas por suas múltiplas aplicações, o estabelecimento da cadeia produtiva encontra-se no seu limiar e depende do elo entre a demanda e o produtor. Entretanto, com o aumento dos problemas fitossanitários, decorrentes de monocultivo, especialmente da soja no Cerrado, intensifica-se a pressão por diversificar. Culturas alternativas, como a quinoa, que possibilitam interromper o ciclo de pragas e doenças, são boas opções....
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Chenopodiaceae; Cultivar; Agronomia; Utilização; Vantagem econômica; Ambiente; Agronomy; Utilisation; Economical advantage; Environment.
Ano: 2006 URL: http://www.alice.cnptia.embrapa.br/handle/doc/125099
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Agri-environmental evaluation of traditional and alternative corn production systems in Chiapas, Mexico JARTS
Aguilar-Jiménez, Carlos Ernesto; Tolón-Becerra, Alfredo; Lastra-Bravo, Xavier Bolívar.
This study evaluates the effects of environmental variables on traditional and alternative agroecosystems in three Ejidos (communal lands) in the Chiapas rainforest in Mexico. The tests occurred within two seasonal agricultural cycles. In spring-summer, experiments were performed with the traditional slash, fell and burn (S-F-B) system, no-burn systems and rotating systems with Mucuna deeringiana Bort., and in the autumn-winter agricultural cycle, three no-burn systems were compared to evaluate the effect of alternative sowing with corn (no-burn and topological modification of sowing). The results show a high floristic diversity in the study area (SS = 4 - 23%), with no significant differences among the systems evaluated. In the first cycle, the analysis...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agroecology; Agronomy; Environmental science Traditional land use; Slash-and-fell-and-burn; Environmental indicators; Maize; Indigenous; Chiapas.
Ano: 2012 URL: http://www.jarts.info/index.php/jarts/article/view/2012011640325
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Agronomy and soil science discipline discussion Thai Agricultural
Cunard, A.C.; Smeltzer, Dale G..
Palavras-chave: Corn; Maize; Agronomy; Soil science; Fertilizers; Varieties; ข้าวโพด; เขตกรรม; การวิจัยดิน.
Ano: 1972 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3912
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Assessing Adoption Potential of New Groundnut Varieties in Malawi Open Agri
H.A..
Palavras-chave: Gene banks; Variety trials; Groundnuts; On-farm research; Economic indicators; Diffusion; Research methods; Sowing rates; Early maturation; Agronomy.
Ano: 2002 URL: http://agropedia.iitk.ac.in/openaccess/?q=node/3746
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Beans cultivation and water regime on soil physical attributes CIGR Journal
Domingues, Rafael; Pereira, André Belmont; Pires, Luiz Fernando; Schiebelbein, Luis Miguel; Barbosa, Eduardo Augusto Agnellos; Auler, André Carlos.
Beans crop is an agricultural staple largely consumed in Brazil because it is part of the basic food of the population. Such a crop is usually grown by small growers and turns out to be of a great social and economical importance. The aim of the current manuscript was to scrutinize the effect of soil water status on its physical attributes, such as bulk density, total porosity, macroporosity, microporosity, hydraulic conductivity under protected environment conditions on beans crop (Phaseolus vulgaris L.). The effect of the soil physical attributes on the biological response of the plants was also investigated. The experiment was installed in March of 2016 in a greenhouse. The experimental design was completely randomized in a factorial scheme with four...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agronomy; Agrometeorology; Soil Physics; Irrigation Science Phaseolus vulgaris L; Hydraulic conductivity; Soil moisture; Macroporosity; Microporosity; Bulk density.
Ano: 2018 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4585
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Biodiversité, mutations agricoles et dynamique des paysages méditerranéens sous influence urbaine National Institute of Agronomic Research
Dumas, Estelle; Napoléone, Claude; Géniaux, Ghislain; Vaissière, Bernard; Tatoni, Thierry.
Tipo: Working Paper Palavras-chave: Biodiversity; Ecology; Dynamic population; Agronomy; Mutation; Biodiversité; Ecology; Dynamique des populations; Agronomie; Mutation.
Ano: 2008 URL: http://hdl.handle.net/2174/183
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Bud development, flowering and fruit set of Moringa oleifera Lam. (Horseradish Tree) as affected by various irrigation levels JARTS
Muhl, Quintin Ernst; du Toit, Elsa S.; Steyn, Joachim Martin; Apostolides, Zeno.
Moringa oleifera is becoming increasingly popular as an industrial crop due to its multitude of useful attributes as water purifier, nutritional supplement and biofuel feedstock. Given its tolerance to sub-optimal growing conditions, most of the current and anticipated cultivation areas are in medium to low rainfall areas. This study aimed to assess the effect of various irrigation levels on floral initiation, flowering and fruit set. Three treatments namely, a 900 mm (900IT), 600 mm (600IT) and 300 mm (300IT) per annum irrigation treatment were administered through drip irrigation, simulating three total annual rainfall amounts. Individual inflorescences from each treatment were tagged during floral initiation and monitored throughout until fruit set....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Horticulture; Agronomy; Plant Science floral initiation; Pollen viability; Pollen tube growth; Biofuel; Miracle tree; Moringa oleifera.
Ano: 2014 URL: http://www.jarts.info/index.php/jarts/article/view/2013081343310
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Can canola be produced in tropical areas? Repositório Alice
TOMM, G. O.; SMIDERLE, O. J.; RAPOSO, R.; DALMAGO, G. A.; SOARES, A.; FIGER, E.; LUFT, A.; BATISTELLA, E.; SCARANTTI, V.; BENIN, F..
2011
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Brazil; Adaptation; Agronomy; Altitude; Latitude; Photoperiod; Savanna; Yield.
Ano: 2011 URL: http://www.alice.cnptia.embrapa.br/handle/doc/895037
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Can canola be produced in tropical areas? Repositório Alice
TOMM, G. O.; SMIDERLE, O. J.; RAPOSO, R.; DALMAGO, G. A.; SOARES, A.; FIGER, E.; LUFT, A.; BATISTELLA, E.; SCARANTTI, V.; BENIN, F..
2011
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Brazil; Adaptation; Agronomy; Altitude; Latitude; Savana; Yield.
Ano: 2011 URL: http://www.alice.cnptia.embrapa.br/handle/doc/895028
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DIRECTORY OF SORGHUM AND MILLETS RESEARCH WORKERS Open Agri
Palavras-chave: Breeds (animals); Intercropping; Agronomy; Sorghum; Soil sciences; Millets; Land resources; Agroclimatology; Genetics; Physiology.
Ano: 1982 URL: http://agropedia.iitk.ac.in/openaccess/?q=node/3998
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Effect of diammonium phosphate and mussoorie rock phosphate on productivity and economics of potato (Solanum tuberosum) Eprints@IARI
Shivay, Yashbir Singh.
The field experiments conducted during 2001–04 at New Delhi to study the effect of crop residue incorporation on the relative efficiency of diammonium phosphate and mussoorie rock phosphate at varying rate of application on growth, yield and economics of potato (Solanum tuberosum L.). Results showed phosphorus application significantly increased growth and yield parameters, yield (mean tuber yield 28.6, 27.5 and 26.6 tonnes/ha during 2001–02, 2002–03 and 2003– 04 respectively) and gross and net returns (mean Rs/ha 42 278; 39 379 and 37 158 during 2001–02, 2002–03 and 2003–04, respectively) of potato. Mussoorie rock phosphate as 80 kg P 2 O 5 /ha was at par with 40 kg P 2 O 5 /ha as diammonium phosphate in terms of yield and gross and net returns of potato....
Tipo: Article Palavras-chave: Agronomy.
Ano: 2010 URL: http://eprints.iari.res.in/110/1/Yasbhir_80_4_2010.pdf
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Effect of different water regimes and nitrogen application on growth, yield, water use and nitrogen uptake by pearl millet (Pennisetum glaucum) Eprints@IARI
Singh, R K; Chakraborty, Debashis; Garg, R N; Sharma, P K; Sharma, U C.
A study was conducted during rainy (kharif) season of 2004 and 2005 in a sandy loam soil of the semi-arid region of Delhi to study the effect of different doses of nitrogen (30, 60 and 120 kg/ha) under rainfed and irrigated condition on ‘HHB 67’ pearl millet [Pennisetum glaucum (L.) R.Br. emend. stuntz.]. Growth rate varied between different seasonal weather condition, but the relative growth rate and the partitioning of dry matter was similar. Yields were more influenced by water application than the nitrogen doses. Maximum yield (3.19 and 3.10 tonnes/ha in 2004 and 2005, respectively) was recorded with 120 kg N/ha application under irrigated condition, while optimum yield (2.30 and 2.40 tonnes/ha in 2004 and 2005, respectively) and water-use efficiency...
Tipo: Article Palavras-chave: Agricultural Sciences and Technology; Agricultural Physics; Crop Physiology; Agronomy.
Ano: 2010 URL: http://eprints.iari.res.in/105/1/singh_et_al_80_3.pdf
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Effect of land configuration and irrigation on sole and linseed (Linum usitatissimum) intercropped chickpea (Cicer arietinum) Eprints@IARI
Ahlawat, I P S; Gangaiah, B.
The 2-year field investigation carried out in a sandy loam soil at New Delhi indicates that furrow irrigated raised bed (FIRB) planting of chickpea + linseed intercropping in 2: 1 row ratio receiving irrigation at 0.4 IW/CPE ratio may be recommended for higher productivity and profitability.
Tipo: Article Palavras-chave: Agronomy.
Ano: 2010 URL: http://eprints.iari.res.in/107/1/ahlawat_gangaiah_80_3_2010.pdf
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Effect of tillage and residue management on soil physical properties and crop productivity in maize (Zea mays)–Indian mustard (Brassica juncea) system Eprints@IARI
Saha, S; Chakraborty, Debashis; Sharma, A R; Tomoar, R K; Bhadraray, S; Sen, U; Behera, U K; Purakayastha, T J; Garg, R N; Kalra, N.
Field experiments were carried out on a sandy loam (Typic Haplustept) soil in semi-arid climate of New Delhi to evaluate the effect of tillage (conventional and zero) and residue management (incorporation, retention and removal) on soil physical properties vis-à-vis plant growth after 3 years of continuous maize (Zea mays L.)–Indian mustard [Brassica juncea (L.) Czern. & Coss.] sequence. Maize (July–October) and mustard (October–November) were grown with conventional (disc plowing, followed by 2 cultivators) and zero tillage (no plowing) and crop residues were applied at sowing @ 3 tonnes/ha for maize and 2 tonnes/ha for mustard. Residue incorporation significantly (P<0.05) lowered the bulk density of surface (0–0.15 m) soil layer. Zero tillage with...
Tipo: Article Palavras-chave: Agricultural Physics; Soil Science and Agricultural Chemistry; Agronomy.
Ano: 2010 URL: http://eprints.iari.res.in/229/1/262-551-1-SM.pdf
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Farmers’ knowledge and perceptions of potato pests and their management in Uganda JARTS
Okonya, Joshua Sikhu; Kroschel, Jürgen.
As we initiate entomological research on potato (Solanum tuberosum L.) in Uganda, there is need to understand farmers’ knowledge of existing insect pest problems and their management practices. Such information is important for designing a suitable intervention and successful integrated pest management (IPM) strategy. A farm household survey using a structured questionnaire was conducted among 204 potato farmers in six districts of Uganda (i.e., Kabale, Kisoro, Mbale, Kapchorwa, Mubende, and Kyegegwa) during August and September 2013. Diseases, insect pests, price fluctuations, and low market prices were the four highest ranked constraints in potato production, in order of decreasing importance. Cutworms (Agrotis spp.), aphids (Myzus persicae (Sulzer)),...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Entomology; Agronomy; Solanum tuberosum ethnoentomology integrated pest management participatory technology development local knowledge.
Ano: 2016 URL: http://www.jarts.info/index.php/jarts/article/view/2016012549800
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Farmers’ perspectives with regard to arable crop production and deagrarianisation: an analysis of Nkonkobe Municipality, South Africa JARTS
Manyevere, Alen; Muchaonyerwa, Pardon; Laker, Micheal; Mnkeni, Pearson Nyari Stefano.
This exploratory study evaluated biophysical, cultural and socio-economic factors affecting crop production and land utilisation in the Nkonkobe Municipality, South Africa. The study sought to establish what farmers in the area perceive as serious threats to crop production, drivers for land abandonment, and how best current agricultural production could be intensified. The farmers’ perspectives were assessed through interviews using semi-structured and open-ended questionnaires. The results of the study revealed declining crop productivity and increase in land abandonment in the Municipality. The biophysical drivers of land abandonment were low and erratic rainfall and land degradation while the socio-economic drivers were labour shortages due to old age...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agronomy; Soil Science crop production; Degradation; Erratic rainfall; Food security; Land abandonment.
Ano: 2014 URL: http://www.jarts.info/index.php/jarts/article/view/2014020344887
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Growth, development and content of flavonoids in calendula (Calendula officinalis L.) Agronomy
Honório, Isabela Cristina Gomes; Bonfim, Filipe Pereira Giardini; Montoya, Sebastián Giraldo; Casali, Vicente Vagner Dias; Leite, João Paulo Viana; Cecon, Paulo Roberto.
Flavonoids, the pharmaco-active compounds studied in this work, in general, are located in the shoots as natural pigments that protect the plants from damage by oxidizing agents. The experiment was conducted in the greenhouse of the Fitotecnia Department, Federal University of Viçosa, Minas Gerais Staty. The experimental design was completely randomized with five treatments and five replications. The treatments were the time of harvest: zero, three, six, nine, and twelve days after anthesis (DAA). The height of the plant (mm), stem diameter (mm), number of leaves and total flavonoid content (%, w w-1) were determined. We developed growth curves for calendula with growth behavior assessed through time for height, stem diameter and number of leaves. The time...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agronomy; Fitotecny secondary metabolism; Phenolic compounds; Harvest season; Plant performance Medicinal Plants.
Ano: 2016 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/25976
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Impact of continuous fertilizer use on fractions of manganese in soil and their contribution to availability and its uptake by maize (Zea mays)–wheat (Triticum aestivum) cropping system Eprints@IARI
Behera, Sanjib Kumar; Singh, Dhyan.
From the investigation it is concluded that DTPA- extractable Mn content in soil did not differ significantly under different treatments. Distribution of various fractions of Mn in soil profile was highly erratic. Residual form was dominant portion of total Mn in all the 4 layers of soil. These fractions kept on changing during the 1-year cropping period. DTPA extractable Mn, both in pre-maize and post-wheat soil, was directly influenced by water-soluble fraction, though contribution of other fractions was also visualized. Uptake of Mn by the component crops was directly influenced by the fractions bound to carbonates and organic matter.
Tipo: Article Palavras-chave: Soil Science and Agricultural Chemistry; Agronomy.
Ano: 2010 URL: http://eprints.iari.res.in/109/1/behera_singh_80_4_2010.pdf
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Influence of continuous application of inorganic nutrients to a Maize–Wheat rotation on soil enzyme activity and grain quality in a rainfed Indian soil Eprints@IARI
Saha, Supradip; gopinath, K.A.; Mina, Banshi L; Gupta, H S.
To explore long-term impact of organic and inorganic fertilizers on soil health and grain quality, we monitored the enzyme activities and chemical properties of soil; and chemical composition of grain from eight treatments at an experimental field site established in 1996. There were eight treatments applied to both wheat and maize seasons: a control; four inorganic fertilizers, that is, nitrogen and phosphorus (NP), nitrogen and potassium (NK), phosphorous and potassium (PK) and nitrogen, phosphorus and potassium (NPK); farm yard manure alone (FYM) and addition of FYM at two different doses (100 and 50% of recommendation) to NPK that is, NPK þ FYM and 1⁄2 NPK þ FYM. After 11 years of the experiment the NPK þ FYM and 1⁄2 NPK þ FYM treatments had the...
Tipo: Article Palavras-chave: Agricultural Chemicals; Agronomy.
Ano: 2008 URL: http://eprints.iari.res.in/303/1/EJSOB_longterm_MW.pdf
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Influence of continuous application of inorganic nutrients to a Maize–Wheat rotation on soil enzyme activity and grain quality in a rainfed Indian soil Eprints@IARI
Saha, Supradip; gopinath, K.A.; Mina, Banshi L; Gupta, H S.
To explore long-term impact of organic and inorganic fertilizers on soil health and grain quality, we monitored the enzyme activities and chemical properties of soil; and chemical composition of grain from eight treatments at an experimental field site established in 1996. There were eight treatments applied to both wheat and maize seasons: a control; four inorganic fertilizers, that is, nitrogen and phosphorus (NP), nitrogen and potassium (NK), phosphorous and potassium (PK) and nitrogen, phosphorus and potassium (NPK); farm yard manure alone (FYM) and addition of FYM at two different doses (100 and 50% of recommendation) to NPK that is, NPK þ FYM and 1⁄2 NPK þ FYM. After 11 years of the experiment the NPK þ FYM and 1⁄2 NPK þ FYM treatments had the...
Tipo: Article Palavras-chave: Agricultural Chemicals; Agronomy; Soil Science.
Ano: 2008 URL: http://eprints.iari.res.in/293/1/EJSOB_longterm_MW.pdf
Registros recuperados: 33
Primeira ... 12 ... Última
 

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