农学学报2026，Vol.16Issue(3)：95-100,6.
地膜覆盖的增温效应与早春玉米安全播种期研究
Study on Warming Effect of Plastic Film Mulching and Safe Sowing Period of Early Spring Corn
摘要
Abstract
In order to study the warming effect of different plastic film mulching methods on early spring corn in Wuhan,ensure safe sowing and increase yield per unit,a comparative observation experiment was conducted on three covering methods with'Etianyu No5'as test material in Hannan District of Wuhan,including open field sowing,single-layer plastic film covering,and single-layer plastic film+small arch shed.The results showed that plastic film covering significantly increased the ground temperature by 10 cm,increased the effective accumulated temperature by 9.9%-22.1%compared to open field sowing,shortened the entire growth period by 5-13 days,and increased the seedling emergence rate by 20%-30%.Among them,the warming effect of plastic film+small arch shed treatment is the most significant,and the effect of promoting early market is the best;the open field sowing method is not suitable for promotion due to the high risk of low temperature and cold damage during the sowing period.Under the methods of plastic film covering and plastic film+arch shed,the average earliest suitable sowing period could be 8 days and 19 days earlier than open field sowing,respectively.In terms of selecting a safe sowing period,if continuous low temperature is forecasted,the germination rate could be improved by delaying sowing or adding small arch sheds,thereby reducing the risk of low temperature and cold damage.关键词
早春甜玉米/露地播种/地膜/小拱棚/发育期/地温/安全播种Key words
early spring sweet corn/open field sowing/film/small arch shed/developmental period/ground temperature/safe sowing分类
农业科技引用本文复制引用
高琪清,刘火胜,张胜超,李楚雄..地膜覆盖的增温效应与早春玉米安全播种期研究[J].农学学报,2026,16(3):95-100,6.基金项目
武汉市气象科技联合项目(2024020901030456) （2024020901030456）
武汉市气象局科技项目(WHY202307). （WHY202307）
