In order to optimize alternative substrates to whole rice grain of good quality for the production of Trichoderma harzianum conidia, mixtures of agricultural residues (rice husks whole, rice husks crushed and peanut husks) were carried out with crushed rice Known as Ñelen and nutrient sources such as water, urea and calcium carbonate (CaC03 ) to select the best substrate in which to obtain the largest number of viable conidia under a completely random design, with 14 treatments and three replicates. The production was carried out in two phases; production of inoculum by liquid fermentation and massive production of conidia by solid fermentation. The number of conidia per gram of substrate, percentage of germination and purity was evaluated. The production of conidia of T. harzianum was superior to 1x1010 conidia. g-1 substrate in the agricultural resid...

In order to optimize alternative substrates to whole rice grain of good quality for the production of Trichoderma harzianum conidia, mixtures of agricultural residues (rice husks whole, rice husks crushed and peanut husks) were carried out with crushed rice Known as Ñelen and nutrient sources such as water, urea and calcium carbonate (CaC03 ) to select the best substrate in which to obtain the largest number of viable conidia under a completely random design, with 14 treatments and three replicates. The production was carried out in two phases; production of inoculum by liquid fermentation and massive production of conidia by solid fermentation. The number of conidia per gram of substrate, percentage of germination and purity was evaluated. The production of conidia of T. harzianum was superior to 1x1010 conidia. g-1 substrate in the agricultural resid...

In order to optimize alternative substrates to whole rice grain of good quality for the production of Trichoderma harzianum conidia, mixtures of agricultural residues (rice husks whole, rice husks crushed and peanut husks) were carried out with crushed rice Known as Ñelen and nutrient sources such as water, urea and calcium carbonate (CaC03 ) to select the best substrate in which to obtain the largest number of viable conidia under a completely random design, with 14 treatments and three replicates. The production was carried out in two phases; production of inoculum by liquid fermentation and massive production of conidia by solid fermentation. The number of conidia per gram of substrate, percentage of germination and purity was evaluated. The production of conidia of T. harzianum was superior to 1x1010 conidia. g-1 substrate in the agricultural resid...

In order to optimize alternative substrates to whole rice grain of good quality for the production of Trichoderma harzianum conidia, mixtures of agricultural residues (rice husks whole, rice husks crushed and peanut husks) were carried out with crushed rice Known as Ñelen and nutrient sources such as water, urea and calcium carbonate (CaC03 ) to select the best substrate in which to obtain the largest number of viable conidia under a completely random design, with 14 treatments and three replicates. The production was carried out in two phases; production of inoculum by liquid fermentation and massive production of conidia by solid fermentation. The number of conidia per gram of substrate, percentage of germination and purity was evaluated. The production of conidia of T. harzianum was superior to 1x1010 conidia. g-1 substrate in the agricultural resid...

Con la finalidad de evaluar el establecimiento de cinco cultivos de cobertura y determinar su aporte potencial a la fertilidad del suelo en función a la extracción total de nutrientes, se instaló un experimento en la Estación Experimental “El Choclino” del Instituto de Cultivos Tropicales, ubicado en la región de San Martín, Perú. Cinco cultivos de cobertura fueron sembrados: Arachis pintoi Krapov. & W.C. Greg, Calopogonium mucunoides (L.), Callisia repens (Jacq.) L., Canavalia ensiformis (L.) y Centrosema macrocarpum Benth. El porcentaje de cobertura alcanzado por Canavalia, fue significativamente superior a los demás cultivos, logrando el cubrimiento total del suelo a los 90 días después de la siembra. La mayor producción de biomasa foliar y radicular sobre la base de materia seca, se consiguió con Centrosema (9.61 t ha-1 y 2.76 t ha-1, respectivamente). La...