DESENVOLVIMENTO DE AMENDOIM SUBMETIDO A ADUBAÇÃO FOSFATADA E POTÁSSICA E DIFERENTES ESPAÇAMENTO ENTRE PLANTAS

Abstract

The objective of this study was to evaluate the cultivation of peanuts as a function of sowing fertilization and plant spacing, in a complementary irrigation system and upland in the Cariri-CE. A randomized block design was used in a split-plot scheme with four replications. The plots were constituted by the doses of sowing fertilization (0, 50, 100 and 150% of the recommended dose) and the subplots by two spacings between plants (10 and 20 cm). The variables evaluated were initial population, final population, plant height, grain mass per plant, number of pods per plant, pod mass per plant, grain mass per pods, mass de1000 grains and mass of 100 pods, yield of pods, Grain yield and percentage of non-commercial grains. The results showed that the upland irrigation system influenced the peanut production and the fertilization in the number of pods and the mass of pods per plant were significant, obtaining the maximum point in the doses of 82.58 and 80.37%, respectively. The spacing of 20 cm increased the grain yield per plant and the mass of 1000 grains in 10.77% and 14.8% respectively