低投入 持續性 環境保全形 農法에서 草生栽培를 응용한 淸淨 綠茶 栽培 技術 體系化

Systemization of Pure-Clean Green Tea Cultural Practice Utilizing Low Input Sustainable Agriculture System by Sod Culture

본 연구는 저투입 지속성 환경보전형 농법을 한국의 차 재배에 적용함으로서 친환경성 시배방법의 체계화 연구에 이어서 초생재배에 의한 차 재배에서 친환경성 잡초방제효과 및 토양환경 개선법을 규명하기 위해 실시하였다. 초생재배용 초종과 파종량의 차이에 의한 초생 재배시 차 재배 잡초방초방제 효과는 귀리와 호밀이 가장 높았으며, 그 작물의 파종량은 2, 4, 6 kg/10 a 모두 비슷하게 높은 효과를 나타내었다. 차나무 재배시기별, 초생재배에 의한 잡초 방제효과를 알아보기 위해 차재배시 잡초의 문제가 차나무 생육, 수량, 품질에 크게 영향을 미치는 7-9月의 초생재배용 초종의 종류와 단 혼파방법에 따른 잡초방제 효과를 알아본 결과, 6월에는 오차드 그라스-톨 페스큐-레드클로버-화이트 클로버 호파구가, 7월 기준 귀리단파구가, 8월에는 6월과 같은 결과를 보였고, 9월에도 6월과 같은 결과로 보이는 등 각 시기별 효과 있는 초종과 단 혼파 방법간의 차이를 보였다. 초생재배 전후의 토양환경의 변화에는 3년간 시점으로 토양조건의 변화를 기대하기 어려웠으나 향후 지속적인 장기연구로 차재배지 토양환경 개선 방법으로 초생재배의 효과를 알아 볼 필요가 있다고 판단된다.

This study was carried out to systemize pure-clean green tea(Camellia sinenesis (L.) O’ kuntze) cultivation utilizing low input sustainable agriculture (LISA) by sod culture. The research was done in a environmentally stabled tea field above 100 years old after establishing in Mudung Mt. in Kwangju city Korea. Experimental materials are as follows; rye, oat orchard grass, kentucky blue grass, hard fescue, alkali grass, bent grass, alfalfa, red clover, white clover and tall fescue as sod culture crop. The result of new fresh leaves yield after sod culture and effect of weed control according to the quantity of sowed seed on each crops are as follows. The plots as 2 kg, 4 kg, 6 kg/10 a of oat and rye single seeding showed high weed control effect compared with other conditions as crops and sowed seed quantities (p> 0.05). o at-6 kg/10 a, rye-6 kg/10 a plot have highest fresh leaves yield (p> 0.05). Rye single seeding plot> orchard grass-tall fescue-red clover-white clover mixing seeding plot> orchard grass-red clover mixing seeding plot> oat single seeding plot are high weed control effect in the order named. In June, orchard grass-tall fescue-red clover-white clover mixing seeding > rye single seeding > orchard grass-red clover > oat single plot are high weed control effect of the period in the order named. In July, oat single seeding> rye single seeding> orchard grass-tall fescue-red clover-white clover mixing seeding>orchard grass-red clover mixing seeding plot > orchard single seeding > alkal : grass single are high weed control effect of the period in the order named. In August, orchard grass-tall fescue-red clover-white clover mixing seeding > orchard grass-red clover mixing seeding> oat single seeding > bent grass single seeding>orchard grass single plot are high weed control effect of the period in the order named. In September, orchard grass-tall fescue-red clover-white clover mixing seeding > orchard grass-red clover mixing seeding> kentucky blue grass single seeding > bent grass single plot are high weed control effect of the period in the order named.