Studies on application of slow acting nitrogen-compound fertilizer on the grassland.
1988
Park G.J. | Lee P.S. | Shin J.S. | Lim Y.C.
To search out the effects of magnesium and boron enriched slow acting nitrogen-compound fertilizer on the nutrient contents and energy productivity of the pasture mixtures, a field experiment was arranged with six different treatments as a randomized block design and lasted from August, 1985 to the end of growing season in 1987. Crude protein and ash content of grasses applied slow acting nitrogen-compound fertilizer application were the highest, on the other hand, crude fiber content was the lowest in all treatments. Productions of crude protein with compound fertilizer (1,667.2 kg/ha) and with slow acting nitrogen-compound fertilizer (1,739.2 kg/ha) were much more increased by 7 and 12% than that of single fertilizer application (1,559.1 kg/ha) under conventional dressing level, respectively. In case of energy production among application of different fertilizers, yields of TDN (6,975.5 kg/ha), StE (5,770.5 KStE/ha) and NEL (61,780.7 MJ/ha) at the plot with slow acting nitrogen-compound fertilizer were more increased approximately 6% than those of single fertilizer under conventional dressing level. Mineral contents of grasses did not show significant difference among the treatments. But considering nutrient balance of animals, application of compound or slow acting nitrogen-compound fertilizer was profitable comparing with single dressing.
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