Avila, João Eduardo ; Assad, Maria Leonor Lopes and Lima, Abdeel Silva (2012) Avaliação de biomassa vegetal em sistema de produção em transição agroecológica. [Evaluation of plant biomass production system in agroecological transition.] Revista Brasileira de Agroecologia, 7 (3), pp. 72-84.
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Document available online at: http://www.aba-agroecologia.org.br/ojs2/index.php/rbagroecologia/article/view/12858
Summary in the original language of the document
Utilizar biomassa vegetal é uma alternativa para adubar solos na transição agroecológica. O objetivo deste trabalho foi avaliar a biomassa vegetal produzida em três áreas – pomar de bananeiras (Musa paradisíaca), feijão-guandu (Cajanus cajan) e pasto de braquiária (Brachiaria decumbens) – de uma unidade de produção e vida familiar (UPVF), de Iperó (SP), e propor alternativas de manejo para diminuir a dependência de fertilizantes industriais. Foram determinadas as massas secas de produtos (exportados da UPVF) e de coprodutos (que permanecem na UPVF) e foram estimados os teores de macronutrientes de coprodutos disponíveis para as culturas. A biomassa vegetal produzida na UPVF não atendeu à demanda nutricional do pomar de bananeiras, principal produto comercial da UPVF. Concluiu-se que o feijão-guandu, com maior produção de matéria seca e maior acúmulo de nitrogênio e de potássio, pode ser usado para aumentar a fertilidade do agroecossistema, desde que seja ampliada sua área de produção.
Summary translation
Using plant biomass is an alternative to fertilize soils in agro-ecological transition. The objective of this study was to evaluate the plant biomass produced in three areas – banana orchard (Musa paradisiaca), pigeon pea (Cajanus cajan) and pasture (Brachiaria decumbens) – of a production and family life unity (UPVF) of Iperó (SP) and propose management alternatives to reduce reliance on industrial fertilizers. It were determined the dry weight of products (exported from UPVF) and the dry weight of coproducts (which remain in UPVF) and the macronutrient of co-products available for crops were estimated. It was found that the biomass produced in UPVF did not attend the nutritional demand of the banana orchard, the main commercial product of UPVF. It was concluded that the pigeon pea, with the highest dry matter production and the highest accumulation of nitrogen and potassium, can be used to increase the fertility of agroecosystem since its production area is enlarged.
| EPrint Type: | Journal paper |
|---|---|
| Keywords: | Cajanus cajan, Massa seca de produtos, Massa seca de coprodutos, Agroecossistema. Cajanus cajan, Dry mass of products, Dry mass of co-products, Agro-ecosystem. |
| Agrovoc keywords: | Language Value URI English Cajanus cajan http://aims.fao.org/aos/agrovoc/c_1185 English Dry matter http://aims.fao.org/aos/agrovoc/c_331318 English Agroecosystems http://aims.fao.org/aos/agrovoc/c_36669 English agroecology http://aims.fao.org/aos/agrovoc/c_92381 |
| Subjects: | Farming Systems Crop husbandry Soil |
| Research affiliation: | Brazil > Other organizations Brazil |
| ISSN: | 1980-9735 |
| Related Links: | http://www.aba-agroecologia.org.br/ojs2/index.php/rbagroecologia |
| Deposited By: | Pinto, Gabriela Franco |
| ID Code: | 22779 |
| Deposited On: | 22 Aug 2013 19:11 |
| Last Modified: | 22 Aug 2013 19:11 |
| Document Language: | Portuguese/Portugues |
| Status: | Published |
| Refereed: | Peer-reviewed and accepted |
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