Experiments were carried out to study the effects of potassium(K) nutrition on Yanguang nectarine fruit quality by applying four levels potassium fertilization to four-year-old trees.The results showed that K fertilization could not only improve the fruit inner qualities significantly due to raising the contents of soluble solid content,soluble sugar,ratio of sugar to acid,vitamin C and mineral K,but also improve the fruit appearance through increasing single fruit weight and pigmentation index and the valu...
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