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近年来,我省柑桔出现着酸高、糖低的情况,这是提高我省柑桔品质在生产上亟待解决的一个问题。为此,我们于一九七四—一九八一年在富含钾,有机质含量在百分之一左右的紫色土上进行了增施磷肥对提高柑桔品质的试验。试验设置:①磷肥各半(二分之一过磷酸钙+二分之一磷矿粉);②过磷酸钙;③脱氟磷肥;④对照。每年在大面积管理基础上每株增施三斤磷肥,对照施猪粪水二百斤。分单株采集果样十个,测定全糖量、总酸度、固形物、维生素丙等项目。从试验结果看出,柑桔品质受外界环境因素影响大,而土壤、气候等因子又大于肥料的作用,要在年限
In recent years, the citrus in our province appears the situation of high acid and low sugar, which is a problem to be solved urgently in the production of citrus in our province. To this end, we conducted an experiment in 1987 to 1981 on the improvement of citrus quality by applying phosphate fertilizers on potatoes rich in potassium and one percent in organic matter. Test set: ① half of phosphate fertilizer (one half of superphosphate + half of phosphate rock); ② superphosphate; ③ defluorinating phosphate; ④ control. Each year in large-scale management based on the application of three kilograms of phosphate per plant, control pig pig manure two hundred pounds. Divided into single fruit samples collected ten, determination of total sugar, total acidity, solids, vitamin C and other projects. From the experimental results, it can be seen that the quality of citrus is greatly affected by environmental factors, while the factors such as soil and climate are greater than the effect of fertilizer.