Effects of plastic film mulching on soil physicochemical properties and spring maize yield in wind and sand erosion area of northern Shaanxi
The experiment aimed to investigate the impact of plastic film mulching on the soil physicochemical properties and spring maize yield in the wind and sand erosion area of northern Shaanxi.The experiment utilized the locally recommended maize variety ZHONGYU968 and included three treatments:Surface mulching,inter-row mulching,and no mulching.The study analyzed the influence of mulching on the soil moisture content,pH value,organic matter,maize agronomic traits,yield,and grain nutritional quality.The results showed that in the 0～20 cm and 21～40 cm soil layers,the soil moisture content of the inter-row mulching treatment was higher than that of the no mulching treatment(P<0.05).In the 41～60 cm soil layer,both surface and inter-row mulching increased soil moisture content compared to no mulching(P<0.05).With the increase of soil depth,the pH value of all treatments exhibited a decreasing trend,with the pH values ranking as no mulching>inter-row mulching>surface mulching in different soil layers.Specifically,in the 0～20 cm soil layer,the pH value of surface mulching was lower than that of no mulching(P<0.05).In the 0～20 cm soil layer,the organic matter content of both inter-row and surface mulching was higher than that of no mulching(P<0.05),while in the 41～60 cm soil layer,the organic matter content of inter-row mulching was higher than that of surface mulching and no mulching(P<0.05).Maize under the inter-row mulching exhibited greater plant height,fresh ear weight,ear grain number,and yield than other treatments(P<0.05),with stem diameter and hundred-grain weight higher than no mulching(P<0.05).The crude protein and crude fat content of maize grains under inter-row mulching were 8.22%and 4.58%,respectively,both higher than no mulching(P<0.05).The study indicates that the inter-row mulching is more suitable for spring maize cultivation in the wind and sand erosion area of northern Shaanxi and can be further promoted in the region.
wind and sand erosion area of northern Shaanxiplastic film mulchingsoil physicochemical propertiesmaizeyield
万方数据
维普
