Effects of cultivation, fertilizing, and varietal characters in the productivity of peanuts (Arachis hypogaea L.)

Abstract

A trial was carried out in Jaboticabal, São Paulo State, to verify the effect of cultivation, fertilizing, and varietal characters in the productivity of peanut plants. Heaping and fertilizing 9:30:16 of N-P-K, 250 kg/ha were tested comparatively with the check treatments between cultivars "Tatu - 53" and "Tatu - Lusitânia" under field conditions. The production of peanut shelled or not shelled were not significantly affected when fertilization and cultivation (heaping) were done or when fertilization and cultivation were associated. There was, yet, a significant difference between the productivity of shelled and not shelled peanuts of the cultivars "Tatu - 53" and "Tatu - Lusitânia". It was noted however, that the fertilizing practices gaves an increase in the number of peanut shells per hectare when compared with the production of not fertilized or cultivated plants. There was a great difference between the plant dry weigth of the cultivars "Tatu - 53" and "Tatu - Lusitânia". The latter was twice as productive. Both cultivars developed similarly, though "Tatu - Lusitânia" showed more vigorous stems and leaves.