The Effect of time Application and Sources of Nitrogen on Yield and Quality of Corn
2006
Shariatmadari, Mahmoud
The application of N-fertilizers in Iran were low and by the Effect of time Application and Sources of Nitrogen on Yield and Quality of Corn, this experiment was carried out on 12 fertilizers treatments in Two Factor Randomized Complete Block Design with three replication. The sources of nitrogen were S1= CO(NH2)2, S2= (NH4)2SO4, S3= NH4NO3 and time application of nitrogen were included in below table. The time application of N-fertilizers Flag 100-120 cm 40-50 cm Plant Treatments 1/4 1/4 1/4 1/4 T1 1/4 1/4 1/2 ---- T2 1/4 1/2 1/4 ---- T3 1/2 1/4 1/4 ---- T4 The corn variety K.S.C. (MO 17XB73) was sown at a number of plant 7000 ha-1 . The experiment results showed that application (NH4)2SO4 on grain with 13790 kg.ha-1 was one group and CO(NH2)2 with 12450 kg.ha-1 was two group. So application (NH4)2SO4 on T.K.W. with 307.8 gr was best treatment. In this experiment without effect on protein, application (NH4)2SO4 were highest effect on other project.
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