Effects of municipal waste compost and chemical on quantitative and qualitative parameters of wheat

This experiment was carried out to investigate the effects of municipal solid waste compost (MSWC) and chemical fertilizers on yield and quality of wheat and P and OM in the soil at Varamin Agriculture Research Center. The experimental design was randomized complete block with 6 treatments and 4 replications. Treatments were included: T0= control، T1= N، P and K chemical fertilizers based on soil test، T2، T3، T4= orderly of 10، 20، and 30 ton ha-1 MSWC، and T5= combination of T1 / 2 + T3. Grain yield، straw yield، grain protein percentage، iron (Fe) and zinc (Zn) content of grain، and P and OM in the soil increased with increasing MSWC rate. The greatest grain yield، straw yield، and P accumulation in the soil occurred when both chemical fertilizers and MSWC were present (T5). No significant differences were observed among treatments for Fe and Zn content of grain. Soil OM was significantly higher in the MSWC treatments than the control or T1. The grain protein percentage increased in T1 and T5 by use of N fertilizer.