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http://dx.doi.org/10.12791/KSBEC.2020.29.1.89

Improvement of Nutrient Balance using Feed Crops for Regional Nutrient Management  

Yang, Heon-yong (Jeonbuk National University, Department of Rural Construction Engineering)
Kim, Jung-Gyun (Jeonbuk National University, Department of Rural Construction Engineering)
Oh, Byung Wook (Jeonbuk National University, Department of Rural Construction Engineering)
Seo, Il-hwan (Jeonbuk National University, Department of Rural Construction Engineering)
Publication Information
Journal of Bio-Environment Control / v.29, no.1, 2020 , pp. 89-95 More about this Journal
Abstract
Livestock facilities in Korea are on their way of enlargement resulting in increment of livestock manure. When the livestock manure treated inappropriate way during application to the agricultural area, environmental damage can be occurred such as bad smell, water and air pollution. Therefore it is important to make a good management plan for livestock manure treatment. In order to effectively apply organic fertilizer made by livestock manure in terms of quantity and quality, the current status of nutrient in agricultural land should be calculated quantitatively by scientific way. The OECD suggest member countries to calculate the nutrient balance as an agricultural environment indicator which represents the difference between nutrient inputs and outputs of the amount of nutrients in various ways. In this paper, we calculated the nutrient balances according to three cities which have different characteristics such as urban or rural areas. To reduce the nutrient balance, we considered how to reduce the amount of chemical fertilizer by using organic fertilizer made by livestock manure. And public treatment facilities for livestock manure can be a good solution except civil complaints for location selection. Among the options, manure fertilizer application to the agricultural area for cultivation of forage crops was mainly considered to reduce the nutrient balance by decreasing input of chemical fertilizers and increasing output of crop production. Using the field monitoring data, it can be calculated that the daily nitrogen reductions by 116.5 kg/ha and the daily phosphorus increments by 2.7 kg/ha.
Keywords
forage; integrated crop-livestock circulation; manure fertilizer; nutrient balance;
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