Evaluation of zinc (Zn) status in the rice growing area of Taluka Usta Mohammad, Balochistan
Paper Details
Evaluation of zinc (Zn) status in the rice growing area of Taluka Usta Mohammad, Balochistan
Abstract
Soil fertility evaluation is the key to balanced fertilization and sustainable crop production. Regular monitoring of soil fertility status provides sound footings for the precious soil resource management. This study was conducted to evaluate the zinc (Zn) content of the major rice growing areas of taluka Usta Mohammad, Balochistan. A total of 50 soil samples were collected from major rice growing tract of 10 Union councils of taluka Usta Mohammad, from 0-20 cm depth. 66% soils were heavy in texture while 24% were medium textured loams. Electrical conductivity ranged from 0.9-10.4 (dS m-1). About 40% of samples were moderately saline (EC: 4-8), 32% soils were very slightly saline (EC: 2-4), 20% soils were non-saline (EC: <2.0) while 8% samples were strongly saline (EC: 8-16). Soil pH ranged from 7.7-9.0. Lime content ranged from 10.5-16.0%. Organic matter ranged from 0.1-1.5%. Majority (66%) of soils were deficient in organic matter (OM: <0.86%), 32% soil samples were medium in organic matter (OM: 0.86-1.29%) while 2% soils were high in organic matter (OM: >1.29%). The ABDTPA-Zn ranged from 0.1-3.0(mg kg-1). Most of the soil samples (46%) were medium (Zn: 0.9-1.5) while 34% soils were low (Zn: <0.9). Nonetheless, 20% of soil samples were adequate in Zn content (Zn: >1.5). The study concluded that the soils of rice growing areas of taluka Usta Muhammad, Balochistan are deficient in organic matter and zinc content which may adversely affect sustainable rice production.
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Aurang Zaib Jamali, Zia-ul-hassan Shah, Muhammed Ali Sial, Zafar Ullah, Zairan Parveen Tunio, Sad ud din, Muhammad Nasir Khan, 2018. Evaluation of zinc (Zn) status in the rice growing area of Taluka Usta Mohammad, Balochistan. J. Biodiv. Environ. Sci., 12(6), 283-290.
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