422 2016년도 시험연구보고서 This study was conducted for 2 years from 2015 to develop appropriate seeding time and fertilization management techniques for stable cultivation of Spergularia marina at the Hwaong reclaimed land in Gyeonggi province. The days of the first harvest from sowing date required 64 days for sowing in August 25, 52 days in sowing on September 10, and 60 days in sowing on September 25. Sowing on September 10 was the shortest to the first havest and shower the largest yield of 6.5ton 10a -1 , the proper seeding time to be around on September 10 in Gyeonggi province. In the experiment determining the proper fertilization rate for Spergularia marina cultivation the yield appeared the highest showing at 6.5ton 10a -1 in recommened fertilization of N, P, K fertilizers by soil test rice straw 500kg 10a -1 application among the treatments such as recommened fertilization of N, P, K fertilizers by soil test, recommened N fertilization of oil cake by soil test, recommened fertilization of N, P, K fertilizers by soil test rice straw 500kg 10a -1 , recommened N fertilization of oil cake by soil test rice straw 500kg 10a -1 applications. Key words : Spergularia marina, Reclaimed land, Halophyte
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422 2016년도 시험연구보고서
과제구분 기본연구 수행시기 전반기
연구과제 및 세부과제 연구분야 수행기간 연구실 책임자
경기도신간척지작물안정생산기술개발 농업환경 ‘15~‘16농업기술원환경농업연구과
노안성
신간척지염생식물세발나물재배기술개발 농업환경 ‘15~‘16농업기술원환경농업연구과
노안성
색인용어 세발나물, 간척지, 염생식물
ABSTRACT
This study was conducted for 2 years from 2015 to develop appropriate seeding time and fertilization management techniques for stable cultivation of Spergularia marina at the Hwaong reclaimed land in Gyeonggi province. The days of the first harvest from sowing date required 64 days for sowing in August 25, 52 days in sowing on September 10, and 60 days in sowing on September 25. Sowing on September 10 was the shortest to the first havest and shower the largest yield of 6.5ton 10a-1, the proper seeding time to be around on September 10 in Gyeonggi province. In the experiment determining the proper fertilization rate for Spergularia marina cultivation the yield appeared the highest showing at 6.5ton 10a-1 in recommened fertilization of N, P, K fertilizers by soil test+rice straw 500kg 10a-1 application among the treatments such as recommened fertilization of N, P, K fertilizers by soil test, recommened N fertilization of oil cake by soil test, recommened fertilization of N, P, K fertilizers by soil test+rice straw 500kg 10a-1, recommened N fertilization of oil cake by soil test+rice straw 500kg 10a-1 applications.
Key words : Spergularia marina, Reclaimed land, Halophyte
Ⅲ. 환경농업연구 423
1. 연구목표염생식물(Halophyte)이란 갯벌이나 간척지의 염분이 함유된 토양 즉 바다와 접해
있는 염습지에서 자라는 일년생 또는 다년생 식물을 말한다(Flowers 등, 1986). 우리
세발나물 재배기간 중 하우스의 일평균 온도와 토양온도를 조사한 결과는 그림 1과 같다. 최저온도 기간(1월 19일∼1월 25일)의 노지 평균온도는 –8.8℃를 나타냈으나 하우스내 평균온도는 2.4℃, 토양 평균온도는 7.7℃를 나타내어 영상의 온도를 유지하였다. 따라서 중부서해 화옹지구 신간척지에서 무가온 이중하우스 재배시 세발
Ⅲ. 환경농업연구 425
나물 월동재배가 가능할 것으로 판단되었다. 세발나물의 파종시기별 토양화학성을파종 후 150일까지 30일 간격으로 조사한 결과는 표 2와 같다. 재배기간에 pH, 유효인산, 치환성양이온, 토양염소, 황산염은 시험전과 큰 차이가 없었으나 파종 후 150일토양염농도는 7.1∼12.5dS m-1 수준으로 다소 감소하였다.