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- W2354180938 abstract "The influence of degradation products of agricultural film in soil on the emergence of rape seeds and seedling growth was studied.Degradable mulching film powder was simulated with linear low density polyethylene(LLDPE) and decomposed low molecular compounds was simulated with 5 000 molecular weight polyethylene.Polyethylene application content in soil was 0,1,10,100,and 500 g/kg dry soil.The emergence percentage of Brassica napus L.and Brassica juncea L.on the 7th day and the 13th day after sowing were counted,and bud length and root length of the seedling on the 13th day after sowing were measured.The results showed that different rape varieties,different types and different contents of polyethylene had significant or very significant influences on the emergence percentage of the rape on the 13th day after sowing.The emergence percentage of B.napus was 4.40%~8.40% more than CK when LLDPE content was 1～100 g/kg.The emergence percentage of B.juncea was 19.69%~36.09% more than CK when LLDPE content was 100～500 g/kg.Also different rape varieties,different types and different contents of polyethylene had significant or very significant influences on shoot length on the 13th day after sowing.Different contents of polyethylene influenced the length of rape root significantly.The shoot length of two rape rarieties increased and the root length of B.napus was inhibited when LLDPE was 1～100 g/kg dry soil.Degradable mulching film powder and decomposed low molecular compound had different influences on the emergence percentage and seedling growth of different rape varieties.To B.napus,which has an absolutely advantage in production area of rape,LLDPE of 1～100 g/kg dry soil promoted its seed emergence(13 d) and shoot growth,but inhibited root growth.5 000 molecular weight polyethylene of 1～10 g/kg dry soil had a slightly inhibition effect on the seed emergence and root growth of B.napus on the 13th after sowing,but had a promotion effect on shoot growth." @default.
- W2354180938 created "2016-06-24" @default.
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- W2354180938 date "2011-01-01" @default.
- W2354180938 modified "2023-09-27" @default.
- W2354180938 title "Influence of Soil Polyethylene Content on Rape's Emergence and Seedling Growth" @default.
- W2354180938 hasPublicationYear "2011" @default.
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