bachelorThesis
Ciclaje de nutrientes en áreas cultivadas con arroz en rotación con soya bajo el sistema de siembra directa, en Los Ríos
Autor
Álvarez Rodríguez, Roddy Franklin
Institución
Resumen
The rice crop (Oryza sativa) deserves to be highlighted for being one of the most consumed cereals in the world, it also contributes 20% of calories. It is estimated that by 2030 consumer demand will be approximately 5 billion, the same that has to be satisfied from non-renewable natural resources, such as soil and water. However, soils suitable for rice cultivation are characterized by having low organic matter content and being exposed to degradation. However, soil management techniques are currently being adapted to improve its quality, reduce environmental impact and maximize the productivity of rice cultivation. Given the above, the following bibliographic work aimed to demonstrate the effect of nutrient cycling on the quality of soils dedicated to the production of rice in rotation with soybeans, in a direct sowing system. Thus, it was determined that keeping crop residues on the soil surface contributes to the accumulation of organic carbon in the surface horizon and of nutrients. In addition to improving the physical-chemical attributes of the soil in the medium term. The rice crop (Oryza sativa) deserves to be highlighted for being one of the most consumed cereals in the world, it also contributes 20% of calories. It is estimated that by 2030 consumer demand will be approximately 5 billion, the same that has to be satisfied from non-renewable natural resources, such as soil and water. However, soils suitable for rice cultivation are characterized by having low organic matter content and being exposed to degradation. However, soil management techniques are currently being adapted to improve its quality, reduce environmental impact and maximize the productivity of rice cultivation. Given the above, the following bibliographic work aimed to demonstrate the effect of nutrient cycling on the quality of soils dedicated to the production of rice in rotation with soybeans, in a direct sowing system. Thus, it was determined that keeping crop residues on the soil surface contributes to the accumulation of organic carbon in the surface horizon and of nutrients. In addition to improving the physical-chemical attributes of the soil in the medium term. El cultivo de arroz (Oryza sativa) merece ser destacado por ser uno de los cereales más consumido en el mundo, además contribuye con el 20 % de calorías. Se estima que para el 2030 la demanda de consumidores será aproximadamente 5 billones, la misma que tiene que ser satisfecha a partir de recursos naturales no renovables, como suelo y agua. Sin embargo, los suelos propicios para el cultivo de arroz son caracterizados por tener bajo contenido de materia orgánica y estar expuestos a la degradación. No obstante, en la actualidad se están adaptando técnicas de manejo de suelo que mejoren su calidad, que reduzca el impacto ambiental y que maximicen la productividad del cultivo de arroz. Ante lo expuesto, el siguiente trabajo bibliográfico tuvo como objetivo demostrar el efecto del ciclaje de nutrientes sobre la calidad de los suelos dedicados a la producción de arroz en rotación con soya, en sistema de siembra directa. Así, se determinó que mantener los residuos de cosecha en la superficie del suelo, contribuye en la acumulación carbono orgánico en el horizonte superficial y de nutrientes. Además de mejorar los atributos físico-químico del suelo a mediano plazo.