كليدواژه :
گندم , كيفيت , كميت , كود دامي و كود شيميايي , كود شيميايي , كود دامي
چكيده لاتين :
Cereals in particular wheat, have the highest level of consumption in the world, and provide about 40 percent of the nutritional energy worldwide, especially in the developing countries. This research has been determining the individual and combined effects of chemical and animal manure on the quantitative and qualitative performance of the bread wheat, improved type Mahdavi (M-70-12). In this long term experiment, 3 rates of animal manure (Eo=0, Ej=15, E2=30) tons per hectare and four chemical fertilizer compounds (Fo=N0PoK0 , Fi=Ni2oP45K5o , F2=N18oP9oK75 , F3= N240P135K100) were applied in a factorial arrangement of complete randomized blocks (R.C.B.D), consisting of 12 treatments, with 3 replications, the result of the first year indicated that the highest yield (3 ton/ha) belonged to E1F2 treatment and the result of second year showed that the highest yield (3.27 ton/ha) belonged to E2F3 treatment compared with E0F3 treatment about 600 kg increased. The results of the third year of this project indicated that the highest yield (4.65 ton/ha) belonged to E2F2 treatment in which 30 tons of animal manure combined with 180 kg nitrogen, 90 kg phosphorus and 75 kg of potassium. When compared to a treatment in which the chemical fertilizer was used without any animal manure, an increase of 1520 kg was achieved. The maximum grain protein concentration (14.3%) pertained to a treatment in which 15 tons of animal manure, along with N180P90K75, was used, but in general protein concentration differences were small. The results generally show the importance of simultaneous use of chemical fertilizers and animal manure.
