Dose Effects of Barnyard Manure as Organic Fertilization in the Reduction of The Exclusive Mineral Fertilization of N, P, K and S in The Coffee Culture: An Additional Inorganic Chemistry for B. Pharm First Year Students in India

The technical feasibility of reducing the levels of nitrogen (N), phosphorus (P), potassium (K) and sulfur (S) recommended in the mineral nutrition of arabica coffee through the use of manure as organic fertilization, in increasing doses of 5,0; 10.0; 20.0; 40.0 and 80.0 t.ha-1, added to the mineral fertilization reducing proportionally to the amounts of nutrients contained without manure. After three harvests all treatments were higher than the control, from 75 to 133% in productivity, indicating the importance of nutrients N, P, K and S without coffee cultivation without soil under study. The treatment that used 20.0 t.ha-1 was significantly superior to the others with a 23% increase in production in relation to the exclusively mineral treatment. The other treatments with manure were similar to each other and mineral mineral, except for 80.0 t.ha-1, which was lower, due to physical objects of foot falls. Ca2+, Mg2+, K+, P, Zn, Mn and B, without pH and V% were observed in the treatments with 20.0 t.ha-1 or higher, reduction of alcohol in CTC alone. In the higher doses of mineral fertilization found reduction of pH and V%, by the probable acidic effect of Urea, Ammonium Sulphate and MAP. The leaf contents of N, P, K and S are only deficient in the control. Of the doses of N, P, K and S, without experience, they can reduce to 6 to 88% of N, 16 to 93% of P, 7 to 86% of K and 9 to 87% of S.