Data/hora: 11/06/2024 18:27:47

Biblioteca(s): | Embrapa Semiárido; Embrapa Unidades Centrais.
Data corrente: | 17/10/2008
Data da última atualização: | 06/09/2018
Autoria: | LIU, W. T. H.; GARAGORRY, F. L.; LIU, B. W. H.
Afiliação: | William T. H. Liu, Concultor CPATSA; FERNANDO L. GARAGORRY, Concultor CPATSA; Berverly W. H. Liu, Concultor CPATSA.
Título: | Analysis of agricultural risk based on the information of climate, soil and crop conditions.
Ano de publicação: | 1978
Fonte/Imprenta: | Petrolina: EMBRAPA-CPATSA, 1978.
Páginas: | 12 p.

Idioma:

Inglês
Português

Notas: | Contribution from the National Research Center for the Semi-Arid (EMBRAPA-CPATSA), Petrolina-PE.
Conteúdo: | The prediction of erop success based on the analysis of long term climate data was attempted by asing a computer simuiation approach. The 5 day-rainfali amounts at different probability leveis were analyzed by using an incomplete gamma distribution statistical pac}cage. A simple water balance model was progranuued to estimate the field water balance through the year. The combinations of different soil water storage capacities with different erop water requirements allow one to predict the probabilities of crop success under different sou environments for different crops. The fittinq of the available soí1 water with Ihe crop water use throtxqhout the year provide the information of sowing time, harvest time and possible dry spells. It helps the farmers to have a better crop planting. With knowing the local soU water storage capacity and the crops intended for pianting, one can easily tell the sowing time and the crop success probability from the output of this model. Furthermore, the model analysis provides the simple antena for crop zoning while the water requirement of dËsired crop and soil water storage capacity are obtained. The zoning of important crops may also provide a better arop rotation system based on the appropriate soil and water managements.
Palavras-Chave: | Agricultura de risco; Agricultural risk; Cultura; Information climate; Manejo de solo e água; Probabilidade.
Thesagro: | Análise de Risco; Clima; Estatística; Seca; Solo.

Categoria do assunto:

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P Recursos Naturais, Ciências Ambientais e da Terra

URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/182517/1/FL-00800.pdf
Registro original: | Embrapa Semiárido (CPATSA)

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