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自１９８４年以来，对国内外３０种不同型号的可控制降解时间的光降解地膜，进行了棉花田间效应研究认为，光解膜在自然曝晒下在一定时间范围内能够自行降解，与普通地膜相比具有相同的土壤环境效应和相近的增产效果。降解产物对土壤的矿质元素含量无明显影响，也未发现有害物质产生。在棉田应用时，诱导期控制在６０天左右，此后，降解过程越短越好，最长不宜超过１２０天。
Since 1984, the study on the field effect of photodegradation of 30 different types of degradable photodegradation film at home and abroad showed that the photolytic film could self-degrade in a certain period of time under natural exposure. Compared with the common film phase Than with the same soil environmental effects and similar stimulation effect. Degradation products had no significant effect on the mineral elements content of the soil, and no harmful substances were found. In the application of cotton, the induction period control in about 60 days, since then, the degradation process is as short as possible, the longest should not exceed 120 days.