EVALUATION OF NUTRITIONAL BALANCE THROUGH DRIS METHOD IN PEACH ORCHARDS OF GOLESTAN PROVINCE

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EMAMI P.; DORDIPOUR E.; DARYASHENAS A.M.

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Journal: Journal of Water and Soil Conservation Year:2013 | Volume:20 | Issue:2 Page(s): 161-177

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Information Journal Paper

Title

EVALUATION OF NUTRITIONAL BALANCE THROUGH DRIS METHOD IN PEACH ORCHARDS OF GOLESTAN PROVINCE

Author(s)

EMAMI P. | DORDIPOUR E. | DARYASHENAS A.M. | Issue Writer Certificate

Keywords

DRISQ3

NUTRITIONAL BALANCEQ2

PEACHQ3

Abstract

The sufficient amounts of essential nutrients should be supplied for plants normal growth if the soil cannot provide them. For this purpose, it is necessary to find appropriate measurement method for determining the rate of nutrient deficiency. DRIS is an efficient method due to problems of nutrients concentration critical level and sufficiency limit methods, variations of these limits in different plant cultivars and climatic conditions, and dependence of results to sampling time. Thus, an experiment has been conducted in 61 PEACH orchards of Golestan province for two years (1388-1390). The orchards were divided into high and low yielding populations according to DRIS method (on the yield basis of 30 kg/tree); then, all expression forms, their variances in the two populations and variance ratios of the low (SB) to high (SA) yielding populations were determined. DRIS-derived sufficiency ranges originated from high yielding populations and taking into account variance ratios (SB/SA), which were 2.46, 0.24, 2.29, 2.03 and 0.56% for N, P, K, Ca and Mg and 132.7, 32.5, 14.5 and 42.9 mg/kg for Fe, Mn, Cu and Zn, respectively. The DRIS indices for the 9 nutrients were calculated in the low yielding populations using DRIS calibration formulas and Nutrient Balance Index (NBI) was determined for each of these orchards. Results indicated that the average order of nutrients requirement in the low yielding orchards is as following: Ca>P>Mg=Mn>K>Fe>Cu=Zn>N.

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APA: Copy

EMAMI, P., DORDIPOUR, E., & DARYASHENAS, A.M.. (2013). EVALUATION OF NUTRITIONAL BALANCE THROUGH DRIS METHOD IN PEACH ORCHARDS OF GOLESTAN PROVINCE. JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES), 20(2), 161-177. SID. https://sid.ir/paper/156557/en

Vancouver: Copy

EMAMI P., DORDIPOUR E., DARYASHENAS A.M.. EVALUATION OF NUTRITIONAL BALANCE THROUGH DRIS METHOD IN PEACH ORCHARDS OF GOLESTAN PROVINCE. JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES)[Internet]. 2013;20(2):161-177. Available from: https://sid.ir/paper/156557/en

IEEE: Copy

P. EMAMI, E. DORDIPOUR, and A.M. DARYASHENAS, “EVALUATION OF NUTRITIONAL BALANCE THROUGH DRIS METHOD IN PEACH ORCHARDS OF GOLESTAN PROVINCE,” JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES), vol. 20, no. 2, pp. 161–177, 2013, [Online]. Available: https://sid.ir/paper/156557/en

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