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DERIVATION OFPREUMINARY ORIS NORMS FOR PEACH (PRUNUS PERSICA L. BATSCH)

Sunil Outt Sharma, Sanjeev Kumar·

Affiliations

¹Department of Pomology. ·Department of Soil Science and Water Management, Dr. Y.S. Parmar University of Horticulture and Forestry, Nauni, Solan - 173230, India

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Cite article:- Sharma Outt Sunil, Kumar· Sanjeev (2025). DERIVATION OFPREUMINARY ORIS NORMS FOR PEACH (PRUNUS PERSICA L. BATSCH). Agricultural Science Digest. 24(2): 103 - 105. doi: .

ABSTRACT

A nutrient survey of important peach growing areas of Himachal Pradesh was conducted to established data bankof 400 observations of leaf macro nutrient composition and yield. Ten nutrient expressions which have significant variance ratios namely: NIP, NIK, N/Ca, N/Mg, P/Mg, KIP, IV Mg, Ca/P, CalMg and Kx Ca in the high yielding sub-population were selected as DRIS nonns. ORIS diagnosed leaf K as the main limiting nutrient followed by N and Ca. Mg was diagnosed as major relative excess nutrient by ORIS.

KEYWORDS

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