| Using one sugarpod garden pea cultivar “Hehuan” as experimental material, effect of different mulching methods on soil temperature, moisture and yield of garden pea were studied. The results showed that whole field surface with plastic-film mulching (FM) and half field surface with pla
stic-film mulching (HM) increased average soil temperature by 3.9℃ and 2.3℃ in 0～25 cm soil profile at early growth stage of edible-podded pea, as compared with the CK. Meanwhile, FM and HM increased soil water content in 0～30 cm soil layer than CK, and soil water content in FM was the highest. Under favourable soil temperature and moisture condition, FM and HM put the seedling stage ahead by 3～4 d and 2 d, increased germination by 25.7%～26.4% and 19.5%～20.9%, and set harvest day back by 3～4 d and 1～3 d, as compared with the CK. It is suggest that FM can improve soil temperature and moisture, promote emergence and early growth, optimize yield components, and significantly increase yield of garden pea. |