Rainwater Catchment Systems in Agriculture
| Maintenance of Productive
Soil Capacity Through "in situ" Rainwater Catchment Systems Roberto Coelho Lopes, José Barbosa dos
Anjos, Aderaldo de Souza Silva, Everaldo Rocha Porto, Maria Sonia
Lopes da Silva, Gilberto Gomes Cordeiro
Abstract The effect of organic and chemical fertilizers applied at time were evaluated together with „in situ" rainwater catchment in zea crop. Two rainwater catchment techniques were used, one known as W and other as Guimarães Duque. Five treatments were used as follows: 1.Control (without fertilizers); 2. rainwater catchment plus manure; 3. rainwater catchment plus phosphorus; 4. rainwater catchment plus organic composite, and 5. rainwater catchment plus manure plus phosphorus. The same trend was observed in all treatments in both rainwater catchment systems. Treatment 5 showed the highest corn yield, followed decreasing by treatment 4, 3, 2 and the control. All the treatments showed higher yield in the rainwater W catchment technique than in the Guimarães Duque technique, indicating a better efficiency of the first for water storage in the soil. |
