(1) Foliar spraying and rooting of biogas slurry can promote the improvement of mulch potato traits and yield with corn intercropping. In the three key topdressing stages of the potato (in the bud stage, the initial stage of expansion and the stage of expansion), the pure film of the mulch potato was treated with pure biogas slurry and leaf spray, the number of potatoes, the number of commodities, the rate of commercial potato, the weight of single potato, Commercial potato weight, aboveground yield, and biological yield increased significantly compared with the control. The general trend is: pure biogas spray + pure biogas irrigation > clean water spray + pure biogas irrigation > pure biogas spray + clear water irrigation > water sprinkler irrigation The resistance to late blight is that the effect of leaf spray resistance is better than that of root irrigation, and the effect of pure biogas slurry spray + root irrigation is best. (2) Foliar spraying and rooting of biogas slurry can increase the yield of filmed potato with corn intercropping. In the three key topdressing stages of potato, the comparison of pure biogas slurry rooting and leaf spraying on the film potato showed that the best yield performance was pure biogas slurry + pure biogas slurry treatment, which increased yield compared with the control water spray irrigation. 8190kg, the yield was 28.6%, the yield of commercial potato was also the highest, which increased by 6870kg compared with the control hectare, and the yield increased by 24.7%. There was also a significant difference between the yield of single root irrigation and leaf spray. The yield of single root irrigation was slightly better than that of leaf spray. It can be seen that the spraying and rooting of the biogas slurry can improve the resistance of the potato, improve the economic traits, and have a significant yield-increasing effect. The pure biogas slurry root + leaf spray effect is the best, and the rooting amount should be 54000kg per hectare. Left and right, the leaf spray should be sprayed evenly; although the effect of using alone is less effective, it is not recommended; during the growth of the potato, the pure biogas spray can also play a good role in preventing pests and diseases. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone
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