Abstract
This study aimed to evaluate the effects of fertirrigation using a drip irrigation system with untreated urban wastewater (UW), without application of chemical fertilizers; confronted with irrigation with fresh water (FW) with chemical fertilizers on the formation of flower-buds of coffee plants. The study was carried out at the Experimental Unit of Wastewater Treatment and Irrigated Agriculture, at UFV. The fertirrigated treatments (MR’s) consisted of five depths of UW (T2, T3, T4, T5 and T6). FW with fertilization (MC) was used in another treatment. The number of flower-buds (NF); NF that turned into harvested grains (NG); and the ratio NG/NF (R) were evaluated. The results showed that: the NF was not different for the treatments MC, T6 and T3, and for MC it was higher than T4, T5 and T2; the NG was higher for MC than for all MR’s treatments; and the R was not different for the treatments T2, MC, T5 and T4, and it was higher for T2 and MC than for the other treatments, by Duncan Test with 5% of probability.
Key words:
reuse; nutrients; irrigated coffee crop
