THE EFFECTS OF SLUDGE COMPOST APPLICATION ON SOIL PHYSICOCHEMICAL PROPERTIES AND YIELD IN KARAKILÇIK WHEAT (Triticum durum sp.) CULTIVATION
Project no. 23424 · Status: Kapanmış (Yayın bekleniyor) · 2021
Summary
<p>It was planned to support the Karakılçık wheat used in this trial with the application of treated domestic waste sludge, in addition to the traditional inorganic fertilization method. Thus, it was aimed to observe the effect on the physical properties of a light-textured soil (sandy) and to reduce the level of agricultural input as well as adding organic matter to the soil. The experiment was conducted according to the randomized block trial design and with 4 different applications. In the experiment, the parcel dimensions will be 3mx4m and 1 m space between the parcels will be left empty. The trial was conducted on a total of 12 parcels and an area of approximately 300 m2. The experiment were: 1) Farmer condition parcel (NPK applied control parcel) (T1); 2) Sewage sludge compost (2 tons/da based on dry matter) (T2); 3) Sewage sludge compost (2 tons/da on dry matter) + NPK (T3); 4) Sewage sludge compost (2 tons/da based on dry matter) + ½ NPK (T4). When the effects of the applied treated waste sludge and commercial fertilizer combinations on the physical and chemical properties of the soil were examined, it was determined that effect of the applications was insignificant on the particle density, bulk density and porosity values of the soil. In particular, the effects of organic materials such as sewage sludge on bulk density and porosity values do not appear immediately. More significant results can be obtained if the applied doses are increased. In the parcels where sewage sludge and fertilizer were applied, the water retention values of the soil increased partially and were found to be statistically significant. Especially the soil aggregation percentage and structure stability index showed significant increases. Statistically significant and positive relationships were also detected in the chemical properties of soils and plant nutrient contents. The benefits of adding sewage sludge, which was applied only for one year in this trial, at the recommended doses every year, especially to sandy soils, will definitely emerge in the following years. This material, which is much cheaper than other alternative organic matter sources, is recommended to be used as a source of organic matter in plant production, except for edible vegetables. Sewage sludge applications are important in terms of both providing organic matter to the soil and preventing such waste materials from turning into environmental problems.</p><p> </p>