Abstract
In order to study the effect of intercropped sweet potato in banana orchard on soil physical and chemical properties, the soil
nutrients, temperature, humidity and enzyme activities of sweet potato intercropped and banana monocultured were compared
by using Guijiao-1 and Pushu-32 as research materials. The soil temperature of sweet potato intercropped in the 5-20cm soil
layer was 0.46-4.55℃ lower than that of banana monocultures in the hot summer, but in the 10 cm and 20 cm soil layers higher
with 0.37-0.97℃ than that of monocultured in October and November. The water content in 5-20cm soil layer of sweet potato
intercropped was 1.42-14.55% higher than that of banana monocultured. From May to September, the activities of soil sucrase,
phosphatase, catalase and urease in sweet potato intercropped were significantly higher than those in banana monocultured. The
contents of soil organic matter, total nitrogen, total potassium, available nitrogen, soil available phosphorus and potassium were
10.64-37.11%, 16.35-32.04%, 4.15-9.55%, 25.39-32.15%, 3.56-8.29%, 31.16-171.04% higher than those in banana monoculture.
Thus, there had positively effects on improving the soil physical and chemical properties and the activity of important metabolic
enzyme in banana field by sweet potato intercropped.
Keywords: Banana; Intercropping pattern; Soil enzyme activity; Soil nutrient content
Li Yan Pei, Feng Dou, Deng Ying Yi. (2022) Effects of banana and sweet potato intercropped on soil physical and chemical properties, Pakistan Journal of Agricultural Sciences, Volume 59, Issue 1.
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