Use of bovine liquid acidulated manure for production of sweet pepper

Summary

In this experiment we tested the performance of liquid extract of bovine manure (ELEB), acidulated with organic and inorganic acids,on the nutrition of sweet pepper under a hydroponics system with recirculation of nutrient solution. Results indicated that liquidmanure contains all essential nutrients for plant development; however, calcium, nitrate, sulfate, iron, and phosphorus were presentin insufficient amounts. When the liquid manure was acidulated with organic acids, there was a chelation of nutrients with calcium,ammonium, and iron, decreasing their content by 33, 90, and 23 %, respectively, in the ELEB solution. Plant height, fruit number andyield were favored when ELEB was acidulated with nitric acid