نتایج جستجو برای: physico chemical properties of soil

تعداد نتایج: 21233244  

Journal: :Asian-Australasian Journal of Bioscience and Biotechnology 2020

Journal: :Journal of environmental biology 2011
Soumya Nayak C S K Mishra B C Guru Monalisa Rath

Phosphogypsum (PG) is produced as a solid waste from phosphatic fertilizer plants. The waste slurry is disposed off in settling ponds or in heaps. This solid waste is now increasingly being used as a calcium supplement in agriculture. This study reports the effectof PG amendmenton soil physico chemical properties, bacterial and fungal count and activities of soil enzymes such as invertase, cell...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده علوم 1393

in this thesis, structural, electronical, and optical properties of inverse pervskite(ca3pbo) in cubic phase have been investigated.the calculation have been done based on density functional theory and according to generalized gradiant approximate (gga) as correlating potential. in order to calculate the configurations, implementing in the wien2k code have been used from 2013 version. first of ...

Journal: :International Journal of Environment, Agriculture and Biotechnology 2022

Soil organic carbon (SOC) plays an important role in soil fertility and is of paramount importance for its contributions to mitigation adaptation climate change. The present study was undertaken estimate the SOC stock properties plantations Southern zone Tamil Nadu. Four different species were selected viz, Eucalyptus, Casuarina, Melia Teak. In all estimation biomass, composite samples collecte...

ژورنال: علوم آب و خاک 2021

The present study was intended to improve the chemical properties of a saline-sodic soil using the individual application of alfalfa residue and two biochars produced from sugarcane bagasse and walnut shell, at the weighting ratio of 5%; their concomitant application with gypsum, aluminum sulfate and the mixture of these two chemical amendments was considered. The experiment was conducted in th...

Metals are ubiquitous within the earth crust. However, the exceptional high-level concentration of heavy metals in the soil due to natural or anthropogenic activities and the chemical forms in which they exist determine the level of risk they portend to the environment. This work was aimed at determining the background level of the presence of seven priority toxic metals (Cr, Ni, Pb, As, Cd, Cu...

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