Growth and production of different cassava varieties in an agroeological system

Revista Brasileira de Engenharia Agrícola e Ambiental

Araújo, Cândido R. de¹  Azevedo, Sérgio G. de¹  Silva, Alineaurea F.¹  Magalhães, Clésio A. de S.¹  França, Carla R. R. S.²  Santana, Luiz M. de³ 

[1] Embrapa Semi-Árido, Petrolina;MSc Irrigação e Drenagem, Lavras;UFLA, Lavras

关键词: rainfed agriculture;    liming of soil;    consortium;    shoot forage    INTRODUÇÃO A mandioca (Manihot esculenta Cranz) é uma das principais fontes de carboidratos em diversos países no mundo;    cuja área plantada é uma das mais representativas dentre as culturas amiláceas;   

DOI  :  10.1590/S1415-43662009000100005

学科分类：农业科学（综合）

来源: Universidade Federal de Campina Grande * Centro de Ciencias e Tecnologia

【 摘 要 】

This study was conducted in the Morro Alto community, municipal district of Acauã (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 Céu" (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-1, depending on the variety used. This productivity, considered above average for the region (12 t ha-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.

【 授权许可】

CC BY-NC