Journal of the Indian Society of Soil Science
SCOPUS
  • Year: 1996
  • Volume: 44
  • Issue: 1

Effect of Aggregating Agents on Synthesis of Microaggregate and Physical Properties of an Alfisol

  • Author:
  • P.K. Sarma, M. Das
  • Total Page Count: 4
  • Page Number: 12 to 15

Department of Soil Science, College of Agriculture, Assam Agricultural University, Jorhat, Assam, 785013.

* Present address: Regional Agricultural Research Station, Assam Agricultural University, Shillongani, Nagaon, Assam, 782001.

Abstract

In a pot experiment, aggregating agents, viz. organic matter, CaCO3, and Fe(OH)3 improved aggregation over the size ranges, i.e. 2–20, 20–50, 50–250 microns. But all the three aggregating agents in combination recorded highest overall increase in the size ranges under consideration. Increase in 2–20 micron was more pronounced as a result of aggregating agent addition. Highest increase in this size was recorded where organic matter and Fe(OH)3 were applied in combination. Aggregating agents, in general, improved bulk density and hydraulic conductivity of the soils.

Keywords

Microaggregate, aggregating agents, hydraulic conductivity, bulk density