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엄미정 ( Mi-jeong Uhm ),김우찬 ( Woo-chan Kim ),정소현 ( So-hyeon Jeong ),김효진 ( Hyo-jin Kim ),박나영 ( Na-young Park ),김용준 ( Yong-jun Kim ),윤순강 ( Sun-kang Yoon ),김주희 ( Ju-hee Kim ) 한국환경농학회 2023 한국환경농학회 학술대회집 Vol.2023 No.0
Livestock manure contains all the major nutrients and various trace elements needed by crops, so it is of great value as a fertilizer although there are some differences. The livestock manure compost made from these will have different application effects depending on the raw materials, form, soil conditions, and crop type. The purpose of this study was to investigate the effect of livestock manure granular compost (LMGC) and livestock manure powder compost (LMPC) as basic fertilizers instead of chemical fertilizers (CF). The experiment was carried out for 2 years with potatoes (Solanum tuberosum L.) and sweet potatoes (Ipomoea batatas L.) as cultivated crops in the open fields of Gimje and Jeongeup province, respectively. Fifty percent of the recommended nitrogen requirement for soil was sprayed with livestock manure and the insufficient amount of NPK ingredients was supplemented with CF. The fertility components of potato growing soil, which were insufficient before the test, increased close to the appropriate level after the test, and soil carbon storage increased by 2%. The available P2O5 content of the sweet potato cultivated soil, which was higher than the optimal value before the test, did not increase in the LMGC plot after the test, and there was no significant difference with the CF plot. The yield of potato in LMGC and LMPC plots were 98% and 111%, respectively, compared to the CF plot. And, the yield of sweet potatoes in these polts increased by 10% and 14%, respectively. These results suggest that livestock compost is sufficiently effective for nutrient supply if it is used appropriately considering the amount of ingredients, usage form, and cultivated crops according to the soil test results.