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灌溉方法与果园地面覆盖对’Mihowase’温州蜜柑果实品质、产量、果实大小分布与冠幕光水平有一定的影响。试验在南非西开普地区连续进行了两个季节（1994／1995和1995／1996），设微喷、滴灌及滴灌配合TyvekTM（一种白色防渗纤维纸）地面覆盖等3个处理。结果表明：处理间果实颜色、可溶性固形物含量与果汁百分率均无明显差别。然而，滴灌及滴灌结合地面覆盖处理降低果实含酸量，因而趋于提高果实固酸比。处理不显著影响果实选择性采收百分率、产量与果实大小分布。TyvekTM地面覆盖显著（P＜0．05）提高进入冠幕下部的地面反射光水平。
Irrigation methods and orchard ground cover have some influence on fruit quality, yield, fruit size distribution and crown light level of ’Mihowase’ mandarin orange. The experiment was carried out for two consecutive seasons (1994/1995 and 1995/1996) in the Western Cape area of South Africa with three treatments of micro-spray, drip irrigation and drip irrigation with TyvekTM (a kind of white anti-seepage fiber paper). The results showed that there was no significant difference between the fruit color, soluble solids content and fruit juice percentage. However, drip irrigation and drip irrigation combined with ground cover treatments reduced fruit acidity and thus tended to increase fruit acid-to-acid ratio. Treatment did not significantly affect fruit selective recovery percentage, yield and fruit size distribution. TyvekTM ground cover significantly (P <0.05) increased the level of ground reflection light entering the lower part of the crown curtain.