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一、试验概况试验田设在思茅县三家村茶厂,茶树种植于海拔1305～1360米处,年平均温度17.7℃,年雨量1514.6毫米,1966～1967年定植,而积622亩。土壤为紫红岩发育的赤红壤,试验设四个处理,四次重复,小区面积7.5平方米,树冠面积6平方米。处理是:
First, the experimental profile Experimental field located in Simao County Sanjiaocun tea plantation, planting tea at an altitude of 1305 ~ 1360 meters, the annual average temperature of 17.7 ℃, the annual rainfall of 1514.6 mm, 1966 ~ 1967 colonization, and plot 622 mus. The soil is red-colored soil developed by mafic rocks. Four treatments were set up in the trial, with four replications. The plot area was 7.5 square meters and the canopy area was 6 square meters. Processing is: