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黄岩县目前柑桔产量的70％以上来自分布在平原水稻土和江边浅海沉积土上的桔园。由于同一地上世代连续种桔,加之长期清耕栽培造成的土肥流失和近期施化肥过多,致使这些桔园土壤肥力逐年递减,物理性状变劣,柑桔根系不能正常生长,树势变弱,严重影响桔果产量的提高和品质的改进。故对这些桔园土壤的改良,已经刻不容缓。 本试验通过施用松木屑,测定其改土的效果,为今后桔园土壤的改良和合理施肥提供理论方面的依据。
At present, more than 70% of the output of citrus in Huangyan County comes from the orange orchards distributed on the plain paddy soil and the shallow sea sediment on the waterfront. Due to the continuous planting of the same generation from the past generations and the loss of soil fertilizers caused by long-term cultivation and the excessive application of fertilizers in the near future, soil fertility of these orchards declines year by year with the deterioration of physical properties, citrus roots can not grow normally, Seriously affect the production of orange fruit to improve and improve quality. Therefore, the improvement of these orange orchard soil, it is imperative. In this experiment, the effect of soil improvement was determined by applying pine sawdust to provide the theoretical basis for the improvement and rational fertilization of orange orchard soil in the future.