平衡施肥技术对大棚秋冬莴苣的影响

Effect of Balanced Fertilization Technology on Autumn and Winter Lettuce in Greenhouses

为探讨平衡施肥技术在设施蔬菜连作障碍方面的应用效果,本文以莴苣为试验材料,设置7个不同施肥处理,以常规施肥为对照1、淋水消毒+不施基肥为对照2,研究不同肥料处理对莴苣植物学性状以及产量的影响。结果表明,增施土壤改良培肥基质和菌剂能够使莴苣株高、茎粗、单株质量增加,莴苣产量比对照1、2显著提高,分别增加了25.81%、46.02%。综合考虑,每667 m2施用配方肥32 kg+复合微肥10 kg+土壤改良培肥基质200 kg+菌剂5 kg对莴苣植物学性状及产量效果最佳,可为大棚莴苣的科学生产提供参考。

In order to explore the application effect of balanced fertilization technology on the continuous crop barrier of facility vegetables,this paper took lettuce as the experimental material,set up 7 different fertilization treatments,took conventional fertilization as control 1,drenching disinfection+no basal fertilizer as control 2,and researched the influence of different fertilizer treatments on the botanical characters and the yield of lettuce.The results showed that increased application of soil improved fertilizer substrate and bactericide could promote the increase of plant height,stem thickness and plant mass,and the yield of lettuce,was significantly higher than that of control 1 and control 2,with increases of 25.81% and 46.02%,respectively.Taken together,the effect of applying of 32 kg formulated fertilizer,10 kg compound mic-fertilizer,200 kg soil improved fertilizer substrate,5 kg bactericide had the best effect on the botanical characters and the yield of lettuce,it provided reference for the scientific production of lettuce ingreenhouses.