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元谋是有名的干热地区,而且风多势大,荒山土壤一般都比较贫瘠。这里过去赤桉造林从没有施基肥的习惯,由于水肥供不上树木生长发育的需要,许多赤桉长成了小老头树。一九八三年六月,我们在造林中对300株赤桉作了不同的施肥处理:其中每塘施以马粪5公斤的100株;每塘施普钙100克的100株;每塘施马粪5公斤,同时又施普钙100克的100株。到同年十月底测定林木生长量时发现施不施肥大不一样.施肥多少对林木生长的影响也很大。施
Yuanmou is a famous hot and dry area, and the trend is so great that barren hills and soils are generally poor. Eucalyptus had no habit of pasting here in the past. Because Eucalyptus can not serve the needs of tree growth and development, many eucalyptus trees grow into small old trees. In June 1983, we made different fertilization treatments on 300 Eucalyptus grandiflora in afforestation: 100 plants with 5 kg of horse manure applied per pond; 100 plants with 100 g of spp calcium per pond; Shima 5 kg, at the same time Shi Pu calcium 100 grams. By the end of October the same year to determine the amount of forest growth when applied to fertilizer is not the same. Fertilizer how much on the growth of trees is also great. Shi