A Study On Effect Of Dam Land Soil Nutrient And Maize Yield With Film Mulching And Fertilizing

With maize varieties Zhe Dan7for material，using split plotdesign，through the field experiment，studied the effect of dam land soilnutrient and maize yield with film mulching and fertilizing，the resultsshowed that：1．Film mulching hold soil water effective significantly．In0~20cm、20~40cm、40~60cm、60~80cm soil layer，film mulching soilwater content increased by16.45%、22.06%、20.68%and21.27%thanun-film mulching’s，were significant differences；soil water content ofall fertilization treatment changed slowly．2．Film mulching hold insulation significantly．The warming effectof film mulching focused on the early growth of maize，jointing stagethe highest temperature3.9℃，the late warming gradually reduced；soiltemperature of all fertilization treatment changed slowly．3．Film mulching promoted maize growth．Stem length、stemdiameter and leaf area of film mulching maize were higher than un-filmmulching’s，were significant differences；in different fertilizationtreatment，stem length、stem diameter and leaf area of maize increasedwith increasing fertilization，stem length、stem diameter and leaf area of explore fertilization> recommended fertilization> traditionalfertilization between film mulching and un-film mulching．4．Film mulching increased soil enzyme activity．Soil urease andphosphatase activities of film mulching maize increased by19.8%and19.1%than un-film mulching’s，were significant differences；soil ureaseactivities and phosphatase activities of the different fertilizationtreatments are explore fertilization> recommended fertilization>traditional fertilization between film mulching and un-film mulching．5．Film mulching promoted the transformation of soilnutrients．Soil active organic matter、organic matter、available N、available P and available K content of film mulching increased6.32%、3.96%、32.4%、23.6%and21.7%than un-film mulching’s，weresignificant differences；the different fertilization treatments of soilnutrients are explore fertilization> recommended fertilization>traditional fertilization，which explore fertilization and recommendfertilization，traditional fertilization were significant differences betweenthe levels．6．Film mulching improved the quality and yield of maizesignificantly．Yield of film mulching maize than un-film mulching’sincreased16.67%~25.27%，film mulching can improve the quality ofmaize，grain starch、amylase starch and volume weight of maize，anincrease5.0%、3.9%and4.4%，were significant differences；it effected less to content of protein、fat and lysine content；protein and fatincreased with the increase of fertilization；fertilization effected less onstarch、lysine、amylase starch and volume weight．7．The results of comprehensive analysis on all index showed theoptimum treatment was FTS treatment．...