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| Registros recuperados: 124 | |
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| SANZONOWICZ, C.; TOLEDO, P. M. dos R.; SAMPAIO, J. B. R.; GUERRA, A. F.; SILVA, D. T. M. da. |
| RESUMO: O nitrogênio (N) é um dos macronutrientes mais exigidos pelo cafeeiro. Sua utilização é necessaria para o cultivo nos solos de cerrado, pois estes não fornecem o nutriente em quantidades suficientes. Foi realizado um ensaio com o objetivo de estudar o efeito de fontes e doses de N no café decotado a 1,5 m de altura em 1997. O experimento foi instalado num Latossolo Vermelho na área experimental da Embrapa Cerrados, em Planaltina -DF. Os tratamentos foram constituídos de 0, 200, e 600 kg ha-¹ de N na forma de uréia parcelados em frações de 1/4, 1/2 e 3/4 no primeiro ano e em 3/4, 1/2 e 1/4 fornecidos no segundo ano e repetidos respectivamente, no terceiro e quarto anos. Foram também acrescidos dois tratamentos, 100 kg N ha-¹ na forma de uréia... |
| Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) |
Palavras-chave: Coffee; Production.; Adubação; Coffea Arábica; Café; Cerrado; Fertilizante Nitrogenado; Nitrogênio; Produção; Solo.; Fertilizer application; Nitrogen fertilizers; Nitrogen; Soil.. |
| Ano: 2003 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/568136 |
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| Mussei, Ahaz; Mwanga, Judicate; Mwangi, Wilfred; Verkuijl, Hugo; Mongi, Rose; Elanga, Anthony. |
| This study was conducted to gain an understanding of how small-scale farmers in Mbeya District have adopted improved wheat technologies promoted by the wheat research program at MARTI-Uyole. The specific objectives were to assess farmers’ wheat management practices, determine the technical and socioeconomic factors affecting the adoption of improved wheat technologies, and draw implications for research, extension, and policy. A purposive multistage sampling procedure was used to select 202 farmers, 160 from Tembela Division and 42 from Isangati Division, which are two important wheat-growing areas in Mbeya District. Primary data were collected using structured questionnaires and supplemented by secondary information obtained from MARTI-Uyole. Juhudi was... |
| Tipo: Report |
Palavras-chave: Tanzania; Wheats; Varieties; Innovation adoption; Technology transfer; Economic indicators; Socioeconomic environment; Plant breeding methods; Research programs; Crop management; Fertilizer application; Food production; Small farms; Highlands; Crop Production/Industries; E14; E30. |
| Ano: 2001 |
URL: http://purl.umn.edu/56190 |
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| Liu, Yu; Zhang, Jun-biao; Du, Jiang. |
| Non-point source pollution arises from fertilizer application in China. This paper empirical test the major factors which affect fertilizer application amount using econometric models and micro-level data from Jianghan plain in Hubei province by year 2006. The results demonstrate that housemaster’s education level, family’s management scale, land fragmentation are major factors affecting farmer’s decision-making process. When farmers have consciousness of scientific fertilization, higher agricultural labor proportion, farther land distance, longer production period could decrease fertilizer application amount. In the field of agricultural public policy, training for technical generalization is helpful in reducing fertilizer consumption. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Non-point source pollution; Farmer; Fertilizer application; Influence factors; Environmental Economics and Policy. |
| Ano: 2009 |
URL: http://purl.umn.edu/50355 |
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| Registros recuperados: 124 | |
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