An experiment was carried out at the Bebedouro Experimental Station in Petrolina, state of Pernambuco, from January 1999 to December 2001, on a sandy Yellow Eutrophic Argisol, with the objective of evaluating the effect of green fertilizers associated with liming and mineral and organic fertilization on the soil chemical attributes and the yield and quality of irrigated melon (Cucumis melo). A randomized complete block design with split-plots and four replications was used. The treatments assigned to the main plots were […]

Organic agriculture is an emerging activity in the upper mid São Francisco River Valley, requiring technologies that are in line with the principles of this agricultural system. A study was carried out at Embrapa Semi-Árido to evaluate the efficacy of natural phosphates applied to three regional soils (dystrophic Grey Argisol – PAGd, eutrophic Yellow Argisol – PAe and Vertisol – V) planted with melon (Cucumis melo) in pots accommodated on wooden benches. The factorial treatments (3 x 4) + 1 […]