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막덮기 재배가 봄재배시 녹색꽃양배추의 생육 및 수량에 미치는 영향
성기철,이정수,이재욱 (사) 한국생물환경조절학회 2002 시설원예‧식물공장 Vol.11 No.4
This study was conducted to examine the effect of row covering materials on the growth and yieldof broccoli for early production in the open field. Materials for plastic tunnel were row-covering (ven-tilating non-woven fabric), perforated film (2.3% pore space) and P.E. film. The types of row coverswere tunnel and covering period was one months after transplanting. The row cover and perforatedfilm increased daily air and soil temperature by 3~4oC and 2~3oC, respectively as compared to no cov-ering. Also, relative humidities in those treatments were higher than those in P.E. and no covering.The row covering and perforated film enhanced plant growth. Broccoli grew best and abnormal headappeared the least with row covering treatment. Days taken for head formation, however, did not dif-fer between treatments but the weight of curd was over 400 g in the treatment of row covering andperforated film covering. Marketable yield doubled under row covering as compared to no covering.The first harvest time was earlier by two weeks in row-covering. The results of this experiment indi-cated that covering row-cover film in spring cultivation was effective for not only yield increase butalso quality evaluation in early production of broccoli.