Abstract
This study was conducted to compare an econamical efficiency of a recommended rate of fertilizer with the criterion of the sustainable agriculture direct income support system(SADISS). Red pepper was cultivated with different fertilizer application levels of the standard amount of fertilizer for red pepper(SAFR), fertilizer recommended by soil testing for red pepper(FRST) and decrement of 20, 40, 60 and 80 percent of fertilizer recommended by soil testing for red pepper(DFRST 20, 40, 60, 80) and that of farmer's habitual practies fertilization (FHPF). The changes by different levels of applied fertilizer was compared with those of SADISS. The results were summirized as follows: No yield difference was found among the FHPF, SAFR, FRST and DFRST20, but yield decrease in FRST40, 60 and 80. T-N, $P_2O_5$ and $K_2O$ in FHPF were 24, 9 and 53 percent respectively, and it were the lowest ones among the treatments. Fertilizer efficiency of red pepper was decreased with application rate of fertilizer. Fertilization ratio of N and P in DFRST(40, 60, 80 percent) was not sufficiency for red pepper. Economical efficiency of FRST and DFRST20 showed sufficiently in comparison with FHPF. Therefore, it could be possible that FRST and DFRST20 were recommended as methods for SADISS in red pepper cultivation.
밭작물에 대한 친환경농업직접지불제 시행에 따른 적정시비기준 및 경제성을 평가하여 농업인의 참여의사 결정에 참고자료로 활용하고자 시비수준을 농가관행 대비 표준시비, 토양검정시비 그리고 토양검정시비감비(20, 40, 60, 80% 감비)를 두고 고추를 공시작물로 수행한 결과 다음과 같다. 고추수량은 농가관행에 비하여 표준, 토양검정 그리고 토양검정 20%감비 수준에서는 차이가 없었으며, 토양검정 40, 60, 80% 감비수준에서는 수량감소가 인정되었다. 고추에 시용한 비료의 흡수이용율은 농가관행에서 질소, 인산, 칼리 각각 24, 9, 53%로 가장 낮았고, 시비량이 증가할수록 이용율은 낮아지는 경향이었으며, 60 및 80% 감비 수준에서는 질소와 칼리의 시용량이 부족하였다. 고추재배시 토양검정 결과 적합성 여부 및 친환경농업보조금(524천원 $ha^{-1}$)을 감안한 소득을 농가관행과 비교한 결과 토양검정 및 토양검정20% 감비가 가장 적합한 시비방법으로 친환경농업직접지불제 참여농가에 추천할수 있다.
