Efecto de trichoderma sobre la incidencia de enfermedades en el cultivo de arroz en el sector perimetral Daule

Abstract:

The present investigation was carried out in the dry season of 2019, in the Daule Perimeter Sector, Daule canton, Guayas province, on the grounds of Mr. Douglas Francisco Barzola Peña, located between coordinates 1 ° 52´ 00´´ S and 79 ° 59´ 00´´ W. The objectives were: 1) To determine the best time of application of Trichoderma, and 2) To prepare the economic analysis of the partial budget of the CIMMYT. Six treatments (Trichoderma to the seedbed, with Trichoderma to the seedbed 20 - 30 days, with Trichoderma to the seedbed 30 - 40 days, without Trichoderma to the seedbed 20 - 30 days, without Trichoderma to the seedbed 30 - 40 days and Without Trichoderma), were studied He used the completely randomized block design with group arrangement. The incidence of diseases present in the rice crop was evaluated, among them Rhizoctonia, Gaeumannomyces, White Leaf, Grain Spotting, in addition, in each treatment the percentage of empty grains, filled with and without spots, was determined; The agronomic variables were plant height, number of spikes, weight of 1000 seeds and yield. According to the results, it was concluded that the application of Trichoderma to the seedbed + 20 and 30 days after the transplant presented the lowest percentage of Rhizoctonia and Gaeumanomyces with 4.2 and 2.3% respectively and the highest percentage of healthy grains with 88.00%. The highest plant height with 113 cm, the greatest weight of 1000 seeds with 29 grams, also occurred in the treatment of Trichoderma at the seedbed + 20 and 30 days after transplantation and the treatment with Trichoderma at the seedbed + 30 and 40 days later of the transplant reached the highest yield with 7049 kg / ha. The most profitable treatment was the use of Trichoderma to the seedbed plus two applications at 30 and 40 days after the transplant with a yield of 1.03%.

Año de publicación:

2019

Keywords:

• TRICHODERMA
• GAEUMANNOMYCES
• Rhizoctonia
• RENTABILIDAD

Fuente:

rraae