22 23 Prediction of breakthrough curves for continuous sorption characterization is generally 24 performed by means of simple and simplified equations. These expressions hardly have 25 any physical meaning and, besides, do not allow extrapolation. A novel and simple 26 approach, based on unsteady state mass balances, is presented herein for the simulation 27 of the adsorption of Cr(III) ions fr...

The importance of organic fertilizers for sustainable agricultural production is an undeniable fact. aim this study to determine the effects different on growth and quality properties maize plants. Three types fertilizers; cattle manure, vermicompost leonardite, their doses 2.500, 5.000, 7.500 10.000 kgha-1 were used in experiment. In addition, conventional non-fertilized as control application...

Abstract Excess nitrogen (N) after animal slurry application is a persistent problem of intensive agriculture, with consequences such as environmental pollution by ammonia (NH 3 ) and nitrous oxide (N 2 O) emissions nitrate (NO − leaching. High-carbon organic soil amendments (HCAs) large C:N ratio have shown the potential mitigating unintended N losses from soil. To reduce gaseous leaching slur...

Increasing plant production by protecting the environment is one of main goals today's agriculture. On other hand, use both inorganic and organic fertilizers becoming increasingly extensive. This study was carried out in field conditions to determine effects fertilization on yield quality characteristics industrial tomato (Solanum lycopersicum L., cv. Heinz 1015 F1). For this purpose, contents ...

Role of humic acids (HA) in plant tissue culture as plant growth regulators has been reviewed. Humic acid is a principal component of humic substances, which are the most important organic constituents of the soil (humus). Humus is defined as the organic matter in soil, a mixture of partially and totally humified substances. Leonardite is the best source for humic acid and it is extracted by us...