Desempenho vegetativo da soja cultivada com hidrogel

Abstract

Water availability is one of the climatic events that most affect the development and productivity of soybeans, with this, cultivation techniques have been increasingly adopted, especially in crops of great economic importance such as soybeans, to reduce the adverse climatic effects on crop and field production. One of the techniques to reduce the causes of water deficit is the use of hydrogel, which has been used to improve the availability of water for plants, increasing the water retention properties in the soil and in cultivation media, improving the efficiency of use. of water, fertilizers, and the physical properties of the soil. Aimed with this work was to make use of the hydrogel in the planting of soybean seeds in pots in a greenhouse, maintaining the soil capacity with irrigation to evaluate the retention of soil moisture, and the effect on biometric characteristics. of the plants. The study was carried out at the IF Goiano – Campus Rio Verde, in the city of Rio Verde in the southwest of the State of Goiás. The experiment was in a randomized block design (DBC) with a 2x3 factorial scheme. Where evaluated levels of Soil Water Levels (NA): 40%, 70% and Hydrogel Dose (DH): 0, 1 and 2 grams, respectively. The biometric effect of the plants was evaluated using the (Proc glimmix) with the aid of the SAS statistical software. There was a significant difference (p<0.05) for the variables number of trifoliate 2 and dry mass of plant 2 in the NA treatment with 70% and for the hydrogel doses. In view of the above, it was possible to conclude that the use of hydrogel in areas with irrigation of up to 70% of the soil capacity, shows effective results in the productive characteristics of the soybean plant.