Temperature and sweet corn production at different planting dates under polyethylene tunnel and mulch
1986
Lee, S.S. | Kim, T.J. (Yongnam Univ., Kyongsan (Korea R.))
An experiment was conducted to know the effects of planting dates (March 5, 15, and 25 and April 4) and transparent polyethylene (P.E.) film treatments (tunnel, tunnel slit, and mulch) on air and soil temperatures and growth and yield of a sweet corn variety, Great Bell. Maximum air and soil temperatures and minimum air and soil temperatures were greater at tunnel tunnel slit mulch in that order. Differences in maximum air and soil temperatures among the P.E. film treatments were much greater than those in minimum air and soil temperatures. However, when film was opened due to high air temperature over 40 deg C in the tunnel, air temperature was similar but soil temperature was lower compared to mulch. High temperature stress could be avoided in tunnel slit without opening film by increasing the number of slits
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