Effect of Soil CaCO₃ Correlation Study on Soil Attributes, Yield and Quality Parameters of Nagpur Mandarin
2014
Bhargavaramireddy, CH | Balakrishnan, N.
This article examines the correlation study of macronutrient status, yield and quality of 11–14 years old of five Nagpur mandarin orchards in the village of Bhendala in Saoner region, Nagpur district as influenced by soil calcium carbonate. Calcareous soils (pH 7.41 to 8.38) with high free CaCO₃ content (3.13 to 15.48%) content test showed the nutrient context of these mandarin soils are, showed negative relationship with the available nitrogen (r= -0.405), available phosphorus (r= -0.567) and potassium(r=-0.470). Nagpur mandarin orchards in Vidarbha region reported that the presence of excessive CaCO₃ reduce the availability N, P and K. The Leaves that are 4 to 6 months old from non-fruiting terminals contain optimum leaf macronutrient concentration (%) as nitrogen (r = -0.755) phosphorus (r = -0.765) and potassium (r = -0.308) showed negative relationship with the calcium carbonate. The calcium carbonate showed negative relationship with yield, weight of fruit, juice content and TSS. Where as positive relationship with acidity (r= 0.854). Overall, this study suggested that low amount of macronutrients in leaves and reduced yield. In addition the poor quality oranges observed was influenced by increased content of CaCO₃.
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