渭北旱地叶面施钙对红富士苹果产量和品质的影响

Effects of Calcium Fertilizer Application by Spraying on Yield and Quality of Fuji Apple in Weibei Dryland

通过喷施5种不同含钙肥料研究了叶面喷钙对旱地红富士苹果产量和品质的影响。结果表明,喷施钙肥能有效的提高产量和品质,但对果实的毒素含量无影响。单喷硝酸钙比对照增产22.42%,氯化钙增产12.07%,2种钙肥加萘乙酸后优于单喷,增产61.78%～70.91%。果实内钙含量以喷施硝酸钙最高,比对照高13.55mg/kg,Cl-1、NO3-1含量和总酸度以对照为最高,糖酸比以单喷硝酸钙最大,达101.1。

Effects of calcium fertilizer application on yield and quality Fuji apple in Weibei dryland were studied by spraying five calcium fertilizer. According to the results of experiment, calcium fertilizer could efficiently increase the yield and quality of Fuji apple, but had noeffects on the content of toxin of the fruit. The increase rates of Ca(NO3)2 and CaCl2 was 22.42% and 12.07% respectively.The patterns of Ca(NO3)2(or CaCl2) +NAA were better than Ca(NO3)2 or CaCl2,which increase rate was 61.78%～(70.91%).In the calcium content of fruit Ca(NO3)2 was the hightest, 13.55 mg/kg higher than CK .Contrary results could be found in the Cl^- and NO3^- contents and general acidity. The sugar/acid could be as light as 101.1 if Ca(NO3)2 was sprayed.