Abstract
ABSTRACTEfforts were made to develop soil fertility variogram-based site-specific nutrient management (SSNM) practices in Nagpur mandarin (Citrus reticulata Blanco) grown on smectite clay soil (Typic Ustorthent and Typic Haplustert) of central India. Different SSNM treatments were more responsive on Ustorthent than Haplustert due to difference in type and magnitude of multiple nutrient deficiencies. Best SSNM treatment in terms of response on canopy growth, yield, fruit quality, and soil-plant nutrient buildup were observed to be T9 [nitrogen (N1200) + phosphorus (P600) + potassium (K600) + M1S1] and T6 (N600 + P400 + K300 + M1S1) on shallow soil and deep soil, respectively, within the same orchard. Fertilizer use needs to be tailored per these doses instead of recommended doses of fertilizers (RDF) (T16) as a basis. Effect of K was more pronounced at N600 + P400 (T5–T8) than at N1200 + P600 (T9–T12), irrespective of soil types.
Published Version
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