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为解决地膜“白色污染”问题,大田条件下,以普通地膜为对照,比较了4种生物降解膜覆盖对花生农艺性状及荚果产量的影响。结果表明,与普通地膜相比,生物降解膜A和B覆盖处理花生出叶速度放缓、侧枝数减少、荚果饱满度下降、产量降低;C1和C2膜覆盖处理,叶龄数、侧枝数干物质累积及荚果产量和普通地膜覆盖处理差异不显著;4种生物膜的降解效果比较,C2膜7月初花生盛花期开始出现裂纹,8月初进入开裂期,而其他降解膜几乎没有降解。由以上可看出,C2膜生物降解性比较好且花生荚果产量比对照不降低,为较适宜的降解膜。
In order to solve the problem of mulching film “white pollution”, the effects of four kinds of biodegradable film mulching on peanut agronomic traits and pod yield were compared under field conditions. The results showed that, compared with the normal film, the biodegradable films A and B covered with peanut leaves slowed down, the number of lateral branches decreased, the pod plumpness decreased, the yield decreased; C1 and C2 film coverage, leaf age, number of stems dry There was no significant difference in material accumulation, pod yield and common plastic film mulching treatments. Compared with the biofilm, the C2 film began to crack in the beginning of flowering in early July, early cracking in early August, and almost no degradation in other degradable films. It can be seen from the above, C2 film biodegradability is better and the peanut pod yield than the control does not reduce, more suitable for the degradation of the membrane.