The Effects of Different Specifications of Plastic Film Covering on the Growth of Fresh Corn in the Middle and Later Stages

LIU Zongchen; WANG Feng

doi:10.19590/j.cnki.1008-1038.2025.02.009

Abstract：Corn is one of the most important feed and food crops in the world.Improving cultivation techniques is an indispensable method to increase corn yield and enhance corn quality.In this experiment,different specifications of plastic film covering were used to test the growth of fresh corn in the middle and later stages.The differences in weed growth,leaf length,plant height,growth period,yield,etc.were measured to explore the effect of plastic film covering on the growth of fresh corn.It was found that black film inhibited weed growth,while white film promoted weed growth.Before the big horn stage,white plastic film had a better effect on increasing leaf length than black plastic film.After entering the big horn stage,black plastic film had a better effect than white plastic film.Film mulching entered the jointing stage,tasseling stage,and silk emergence stage earlier than bare land.White film mulching had a better promotion effect than black film mulching,and black film mulching entered the new growth stage at least earlier than bare land.It could be inferred from the differences in leaf color between different specifications of plastic film mulching cultivation that black plastic film could effectively increase the number of chloroplasts or chlorophyll content,better promote photosynthesis,and promote growth.When using black plastic film,there was a significant increase in plant height,and black thick film had the best effect on plant height growth.Using white plastic film would affect the increase in plant height.The use of black plastic film could effectively increase the number of spikes,spike length,gross weight of ten spikes,and net weight of ten spikes,and the black thickened film has the best effect.Film mulching cultivation also had a positive effect on the number of rows per ear,with black film having a more significant positive effect than white film.