Loading…

Growth and production of different cassava varieties in an agroeological system/Producao de diferentes variedades de mandioca em sistema agroecologico

This study was conducted in the Morro Alto community, municipal district of Acaua (PI), located in Serra da Parreira, 620 m altitude. The objective was to evaluate the growth and production of the cassava in the intercropping with guandu, sorgo, caupi, cotton and sunflower in an agroecological produ...

Full description

Saved in:
Bibliographic Details
Published in:Revista brasileira de engenharia agrĂ­cola e ambiental 2009-01, Vol.13 (1), p.33
Main Authors: Silva, Alineaurea F, de Santana, Luiz M, Franca, Carla R.R.S, de S. Magalhaes, Clesio A, de Araujo, Candido R, de Azevedo, Sergio G
Format: Article
Language:English
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This study was conducted in the Morro Alto community, municipal district of Acaua (PI), located in Serra da Parreira, 620 m altitude. The objective was to evaluate the growth and production of the cassava in the intercropping with guandu, sorgo, caupi, cotton and sunflower in an agroecological production system. The height, foliar retention and survival of the cassava plants did not present significant differences considering the consortium types. A difference was only observed among varieties in relation to the survival of the plants, the variety "Do Ceu" (BGM 537) showing the greatest survival percentage. The species intercropping maintained different soil humidity contents, guandu standing out as the crop that maintained the largest soil humidity content (10%), even so the consortium type did not modify the productivity of roots. It was observed that the production of roots varied from 13 to 26 t [ha.sup.-1], depending on the variety used. This productivity, considered above average for the region (12 t [ha.sup.-1]), shows that intercropping, mainly with legumes such as the bean caupi and guandu, can improve not only farmer's revenue but also soil characteristics in rainfed areas. Keywords: rainfed agriculture, liming of soil, consortium, shoot forage Neste trabalho, conduzido na comunidade de Morro Alto, municipio de Acaua, PI, localizada na Serra da Parreira, situada a 620 m de altitude, objetivou-se avaliar o crescimento e a producao da mandioca em cultivo consorciado com guandu, sorgo, caupi, algodao e girassol, em sistema agroecologico de producao. A altura, retencao foliar e sobrevivencia das plantas de mandioca, nao apresentaram diferencas significativas, considerando-se os tipos de consorcio. Observouse diferenca apenas entre variedades na sobrevivencia das plantas, sendo que a variedade Do Ceu (BGM 537) apresentou a maior porcentagem de sobrevivencia. As especies consorciadas mantiveram diferentes teores de umidade do solo destacando-se o guandu como a cultura onde se encontrou maior teor de umidade do solo. Por outro lado, a producao por hectare variou de 13 a 26 t, dependendo da variedade utilizada. Esta produtividade, considerada acima da media da regiao (12 t ha-1), mostra que o cultivo consorciado, principalmente com leguminosas como o feijao caupi e guandu, pode melhorar nao so o rendimento da cultura mas tambem as caracteristicas do solo, em areas dependentes de chuva. Palavras-chave: agricultura de sequeiro, calagem, consorcio, forragem
ISSN:1415-4366