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ZINC FERTILITY OF RED DELICIOUS APPLE ORCHARDS AND ITS ASSOCIATION WITH SOIL PROPERTIES IN TEHSIL SANJAVI, BALOCHISTAN
Author(s)
SYED REHAN FAREED Department of Soil Science, Sindh Agriculture University,Tandojam, Sindh,Pakistan
MEHRUNISA MEMON Khairpur College of Agricultural Engineering and Technology,Khairpur,Pakistan
SALEEM MASEEH BHATTI Department of Soil Science, Sindh Agriculture University,Tandojam, Sindh,Pakistan
MUHAMMAD IBRAHIM KEERIO Khairpur College of Agricultural Engineering and Technology,Khairpur,Pakistan
Abstract
Prevailing Zn issue at the country level and some studies of fruit orchards highlighting Zn deficiency gave rise to the evaluation of apple orchards in Sanjavi Tehsil. Soil and leaf tissue samples were collected from twenty-five apple orchards (eight trees from each) covering four union councils (Sanjavi, Mana, Warchm and Poi) of Sanjavi Tehsil. Four cores were dug under each tree to have a representative soil sample. Leaves were collected from the middle of each newly emerged twelve shoots of each tree. According to the critical nutrient level (CNL) approach, there was no deficiency of plant available Zn in soil. All the samples (100%) were above the adequacy limit of 1.5 mg kg-1. Nonetheless, 7 out of 25 orchards had relatively less available Zn (1.8 to 3.0 mg kg-1) over others. In contrast to available Zn, the leaf tissue samples were at the edge of adequacy level. In other words, 100% samples were marginal (25-150 mg kg-1) and if no application is carried out in near future, soil available and leaf tissue Zn, both may further lower down. Positive and significant relationships illustrated that organic matter contributed to soil available and leaf tissue Zn
Publication Details
Page(s) 1049-1054
DOI 10.30848/PJB2022-3(32)
Published Journal: Pakistan Journal of Botany, Volume: 54, Issue: 3, Year: 2022
Keywords
Balochistan organic matter Critical nutrient level CNL altitude ABDTPA Zn
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