Composição botânica do consórcio de leguminosas herbáceas com Pennisetum glaucum.

O objetivo deste estudo foi avaliar a massa e proporção de quatro leguminosas em cultivo consorciado com milheto para produção de forrage

Intercrops of grass with legumes as green manure for agroecological systems.

The stud article aimed to assess the accumulation and rates of nutrients in the biomass of the consortium of millet and leguminous plants for green fertilisation. The treatments were consortia of millet with four different leguminous plants: Cajanus cajan, Canavalia ensiformis, Mucuna aterrima, and Dolichos lablab. The treatments were distributed in a completely randomised design with four replications. The species of each consortium were planted in a line, at a distance of one metre apart. The aerial part of the plants was harvested after 90 days to determine the botanical composition, intercropping biomass, and the amount and accumulation of macronutrients in the biomass. The Millet mass did not differ among the consortia. However, among the legumes, M. aterrima has the highest mass (2806.31 kg/ha DM), which is reflected in the lower ratio of leguminous grasses in the millet consortium with M. aterrima (4.61). The consortia affected the rate and accumulation of P, B, and Fe. The biomass of the millet consortium with C. cajan presented the lowest rate. In addition, the accumulation of K, Mg, and Zn was low in this consortium. The biomass of millet intercrops with M. aterrima, D. lablab and C. ensiformis showed higher accumulations of K, Ca, and Mg. The highest accumulation of N was observed in the biomass of the consortium with M. aterrima (50.71 kg/ha). The rates and accumulations of Cu and Zn were higher in the consortium with M. aterrima. The consortium of millet with the leguminous plants is a sustainable alternative for fertilisation. The consortia with M. aterrima and D. lablab are the most promising ones, due to the higher proportion of plants

Growth and Biomass Production of Moringa Cultivated in Semiarid Region as Responses to Row Spacing and Cuts

The management of the moringa to produce biomass, as it is for other vegetal species, must consider some aspects that foster productivity. Among these aspects, cultivation density is a crucial element. This research aimed to assess the effects of spacing and cuts on the growth of the moringa. The treatments consisted of four spacings: 0.5 x 1.0 m; 0.83 x 1.0 m; 1.25 x 1.0 m; and 1.66 x 1.0 m. The experimental design was a randomized-block design with five repetitions. The standardization cut of the plants was performed at a one-meter height from the ground, fifty days after the seedlings transplantation. The assessments were performed every sixty days, totaling six cuts. Spacing impacted the growth and biomass production but did not affect the height of the plants. The stem diameter, branch number, and the plant’s mass increased at increasing the spacing. On the other side, the total mass and the masses of the stem, the leaflet, and the petiole per hectare decreased at increasing the spacing. Spacing did not affect the ratio between leaf/stem and leaflet/petiole. Plant growth and dry matter production were highest after the first two cuts and decreased significantly from the third cut on. The spacing of 0.5 x 1.0 m should be used for planting Moringa oleifera Lam. because this configuration, even reducing the gain per plant, increased the production of dry matter per unit area

Produção de biomassa de leguminosas em cultivo consorciado com milheto no Vale do São Francisco.

O objetivo deste trabalho foi avaliar a produção de biomassa de quatro leguminosas em cultivo consorciado com milheto (Pennisetum glaucum). Este trabalho foi realizado na fazenda Milano, no município de Santa Maria da Boa Vista, PE. A área experimental tem dimensões de 70 m x 100 m, totalizando 0,7 hectares. Os tratamentos foram compostos por milheto (M) e diferiam entre quatro leguminosas: feijão-guandu (Cajanus cajan); feijão-de-porco (Canavalia ensiformis); mucuna-preta (Mucuna aterrima); lab-lab (Dolichos lablab), com 12 repetições. Foram avaliadas a produção de biomassa total, de gramínea e de leguminosa aos 110 dias após o plantio. A combinação do milheto com mucuna-preta apresenta maior potencial para uso como adubação verde, com elevada produção de biomassa total e de leguminosa

Avaliação econômica do uso da adubação verde na recuperação de áreas degradadas.

O presente trabalho teve como objetivo verificar a viabilidade econômica da recuperação de áreas degradadas através da adubação verde

Adubação verde na produção de forragem do capim buffel.

Objetivou-se avaliar o efeito de três espécies de adubos verdes sobre a produção de pastos de capim-buffel (Cenchrus ciliares)

Acúmulo de macronutrientes na biomassa de consórcios de leguminosas e milheto para adubação verde.

O estudo objetivou avaliar os macronutrintes na biomassa de consórcios entre milheto e leguminosas para fins de adubação verde

Características estruturais do dossel e acúmulo de forragem em gramíneas tropicais, sob lotação intermitente e pastejada por ovinos.

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