The Effect of Irrigation and Fertilizer on Silage Corn
1992
Vahedi, Abolghasem | Mehdizadeh, Younes | Jokar, Ladan
Eplit Plot design field trails were carried out at Zargan Research Station from 1363 until 1365 in order to investigate the effect of irrigation depth and interval using different rates of Nand P fertilizers on Silage Corn (Variety 755 ). 5; 8 and 11 day intervals were compared in the main plots and sub-plots which were used for irrigation depth based on 50. 65 and 80 percent of Class A Evaporation pan. Three rates of Nand P20S( 90-60 ; 150-90 and 210-120 ) was applied in the sub-sub plots. The statistical analysis of 3 years average yield data indicates that: 1.Five and eight days irrigation intervals ( T1 and T2 ) had significant differences than T3. 2.80% evaporation from Class A pan ( E3 ) was the best. 3.The highest yield obtained when 210 kg. of N plus 120 kg. P205 per hectare was used. In general T1 E3 F3 was the best among all other treatments yielding 68.930 Tons/Ha., and the rate of water used varied between 7760 to 10280 M3/Ha.
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