Sowing time affecting the development of common bean cultivars in Lichinga, Province of Niassa, Mozambique.

A manifestação do potencial produtivo das culturas depende de fatores genéticos e de condições favoráveis de ambiente e de manejo. A época de semeadura pode afetar significativamente a produtividade de grãos do feijão comum. O objetivo do trabalho foi de estudar o comportamento de cultivares brasileiras e épocas de semeadura nos componentes de produção e produtividade de grãos do feijão comum cultivado nas condições ambientais de Lichinga, Província de Niassa, Moçambique. O experimento de campo foi conduzido em duas safras agrícolas, utilizando-se o delineamento experimental de blocos casualisados em esquema fatorial 5x3x2, com quatro repetições. Os tratamentos constaram da combinação de cinco cultivares de feijão comum (BRS Pontal, BRS Agreste, BRS Perola e BRS Requinte, desenvolvidas pela Embrapa e uma variedade local, Encarnada) com três épocas de semeadura (início do período chuvoso, 15 e 30 dias após) e duas safras agrícolas. A cultivar brasileira de feijão comum BRS Pontal foi a mais produtiva em todas as épocas de semeadura, seguidas da BRS Agreste, que não foi a mais produtiva, somente na segunda época de semeadura da safra 2013/2014. A cultivar Encarnada de Moçambique foi a cultivar menos produtiva em todas as épocas de semeadura e em todas as estações de crescimento. A melhor época de semeadura para as cultivares de feijoeiro-comum é no início do período chuvoso. O uso de tecnologias como o uso de sementes de novas cultivares, época de semeadura adequada, adubação e controle de plantas daninhas permitem aumentar significativamente a produção de grãos do feijoeiro-comum em Lichinga, Moçambique

Response of wheat to soil liming in Lichinga, Niassa, Mozambique.

Nome que consta na publicação: João Leonardo Pire

Wheat response to nitrogen in the province of Niassa, Mozambique.

Na publicação consta: JOÃO LEONARDO PIRE

Performance of six common beans cultivars in three different planting dates in Lichinga, Niassa, Mozambique.

A field experiment was conducted in the area of the Centro Zonal Norte do Instituto de Investigação Agrária de Moçambique (IIAM), em Lichinga, Niassa, Moçambique, with the objective of checking out the performance of common beans cultivars in response to local environmental conditions. A complete 6x3 factorial experimental design was used, encompassing six cultivars of common beans (BRS Pontal, BRS Agreste, BRS Perola, and BRS Requinte, developed by Embrapa, Brazil; and two locals, Manteiga and Encarnada), and three planting dates (12/12/2012, 29/12/2012, e 13/01/2013). There was soil cover fertilization at planting (500 kg/ha of the mixed NPK 2-24-12) and after 20 days of plants emergency (130 kg de N/ha). Each treatment was replicated four times in the field, in randomized blocks (18 m2 each, with five liner of six lineal meters each, spaced 0,45 cm, with nine seeds seeded per meter). At harvest (area of 3 m within the central lines), it was evaluated the plant final stand, degree of lodging, number of pods per plant, number of grains per pod, weight of 100 grains, and productivity. The Brazilian cultivars showed higher productivity than the local ones within the studied conditions, especially BRS Agreste, with an average production of 2,387 kg of grains/ha. The best planting date was at the end of December

Performance of six common beans cultivars in three different planting dates in Lichinga, Niassa, Mozambique.

A field experiment was conducted in the area of the Centro Zonal Norte do Instituto de Investigação Agrária de Moçambique (IIAM), em Lichinga, Niassa, Moçambique, with the objective of checking out the performance of common beans cultivars in response to local environmental conditions. A complete 6x3 factorial experimental design was used, encompassing six cultivars of common beans (BRS Pontal, BRS Agreste, BRS Perola, and BRS Requinte, developed by Embrapa, Brazil; and two locals, Manteiga and Encarnada), and three planting dates (12/12/2012, 29/12/2012, e 13/01/2013). There was soil cover fertilization at planting (500 kg/ha of the mixed NPK 2-24-12) and after 20 days of plants emergency (130 kg de N/ha). Each treatment was replicated four times in the field, in randomized blocks (18 m2 each, with five liner of six lineal meters each, spaced 0,45 cm, with nine seeds seeded per meter). At harvest (area of 3 m within the central lines), it was evaluated the plant final stand, degree of lodging, number of pods per plant, number of grains per pod, weight of 100 grains, and productivity. The Brazilian cultivars showed higher productivity than the local ones within the studied conditions, especially BRS Agreste, with an average production of 2,387 kg of grains/ha. The best planting date was at the end of December

Adoção de práticas de manejo da agrobiodiversidade e estratégias de diversificação dos meios de vida das comunidades rurais em Pirenópolis - Goiás.

O manejo da agrobiodiversidade sob princípios agroecológicos tem sido visto como uma das ferramentas estratégicas para a sustentabilidade de agroecossistemas, quer na recuperação das condições socioeconômicas e ambientais, quer proporcionando segurança e soberania alimentar. O presente artigo procura analisar a adoção das principais práticas recomendadas no manejo da agrobiodiversidade tendo em conta as estratégias de meios de vida em que os produtores rurais se encontram envolvidos. Os resultados mostram haver uma correlação positiva entre o número de práticas de manejo sob princípios agroecológicos adotados e o número de alternativas de fontes de renda dos produtores

Phosphorus and potassium fertilization increase common bean grain yield in Mozambique.

There is little information about common bean fertilization in African Savannas. The objectives of this study were as follows: i) to evaluate the common bean yield potential in the environmental conditions of Lichinga, Niassa, Mozambique, and ii) to determine the common bean response to phosphorus and potassium fertilization applied together in order to verify whether the interpretation of soil analysis for the Brazilian Cerrado could be adopted for Savanna soils in Mozambique. The experimental design was a randomized block design in a 5 x 4 x 2 factorial arrangement. Treatments consisted of a combination of phosphorus doses (0, 35, 70, 140 and 280 kg ha-1 of P2O5), potassium doses (0, 50 100 and 200 kg ha-1 of K2O), and different growing seasons (2012/2013 and 2013/2014). The field rainfed experiments were conducted in Lichinga city, province of Niassa. Common bean crops presented high productivity potential in rainfed systems in the environmental conditions of Lichinga, Niassa, Mozambique, reaching grain yields of up to 3,600 kg ha-1 depending on the rates of fertilization with phosphorus and potassium. Common beans responded to phosphorus and potassium fertilization despite high contents of these nutrients in the soil, according to the interpretation of soil analysis for the Brazilian Cerrado. Maximum grain yield in the average of two growing seasons was estimated to occur for 239 kg ha-1 of P2O5 and 141 kg ha-1 of K2O, indicating that further calibration studies for P and K are required for this specific region of Mozambique.Made available in DSpace on 2018-03-29T00:35:16Z (GMT). No. of bitstreams: 1 CNPAF2018agriambi.pdf: 800986 bytes, checksum: 171e8108b32a519ae30ae7469a7240a8 (MD5) Previous issue date: 2018-03-28bitstream/item/174659/1/CNPAF-2018-agriambi.pd