Produção porta-enxertos de Cajueiro sob doses de adubação orgânica.

Abstract

The northeastern region of Brazil is a large cashew producer and it is necessary to develop techniques and knowledge about the great genetic diversity of rootstocks and the influence of organic matter on the production of seedlings in these regions. The objective of this research was to evaluate the growth of different cashew rootstocks associated to fertilization with doses of bovine manure in an experiment at the Federal University of Campina Grande, at the Agro-Food Science and Technology Center in the city of Pombal - PB under protected environment conditions. A randomized complete block design was used in a 3 x 4 factorial scheme, with three replications and two plants per plot. The treatments resulted from the combination of three genetic cashew (Cajueiro precoce CCP 06 and Embrapa 51) and organic matter (4%; 8%; 12% and 16% on the basis of soil volume), corresponding to 50; 100; 150 and 200 g per bags, respectively. The cashew tree rootstock had growth and phytomass production higher than the precocious dwarf cashew clones. Increasing doses of organic matter did not provide gains in the growth of cashew rootstocks. There was no interaction between cashew genetic materials and organic matter doses on the evaluated variables.