Abraão Cícero da Silva

Application of dairy residue in peanut (Arachis hypogaea L.) cultivated in Northeastern Brazil

Peanut (Arachis hypogaea L.) is one of the widely cultivated legume in tropical and subtropical regions. The aim of this study was to evaluate the agronomic characteristics of peanut (BR1) under different doses of dairy residue. The experiment was conducted as a randomized block design with three replicates. The treatments consisted of doses of milk residue: 0, 2.5, 5, 7.5, 10 m 3 ha -1 and an additional control containing phosphors and potassium (PK) at dose of 15 and 50 kg ha -1 . The following characteristics were determined in plants: leaf area, number of stems, shoot and root system length, dry weight of shoot and root system, number of pods and grain yield. The dose of 5 m 3 ha -1 provided the highest agronomic characteristics. The grain yield was greater for the dose of 10 m 3 ha -1 . The dairy residue can be used as a source of fertilizer on peanut crop by meeting their nutritional requirements.

Peanut seed yield under influence of fertilizer and biostimulant

Nowadays, the search for increase in the crop productivity with high organoleptic, physical and physiological quality of seeds remains one of the main objectives. Considering the importance of peanuts (Arachis hypogaea L.) for Brazilian agriculture and for the production of seeds, it is indispensable to use technological innovations aiming at the advancement of productivity and profitability for the seed producer. This study aimed to evaluate the yield and the components of peanut seed production of cultivar BR1, subjected to the foliar and seed application of Ca + B, Mo + P and Stimulate®. The design was randomized blocks with the use of three products (Ca + B, Mo + P, Stimulate ® ), two types of applications (via foliar and seed), the PK culture, and the absolute control, following a factorial scheme of [(3 × 2) + 2]. The doses of 2.0 mL/kg (Ca + B), 1.6 mL/kg (Mo + P), and 15 mL/kg (Stimulate ® ) via seeds were indicated the best for the development of the peanut crop due to its profitability and efficiency. The application of Ca + B, Mo + P, and Stimulate ® via seeds is beneficial for the initial counting, emergence, emergence speed index, biological productivity, pod production, seed production and leaf area.