International Journal of Chemical Studies
Vol. 5, Issue 5 (2017)
Influence of tillage practices on soil physical chemical and biological properties under cotton maize cropping sequence
Author(s): K Sathiya Bama, E Somasundaram and S Thiageshwari
Abstract: To study the soil quality changes in the important cropping sequence cotton maize under different tillage and land configuration methods, field experiments were conducted in Tamil Nadu Agricultural University during the year 2012-15. Tillage practices are minimum, conventional and zero tillage combined with land configuration methods viz., furrow irrigated raised bed (FIRB) and flat bed with permanently for both crops and for individual crops were the treatments. After three years of experimentation, analytical report of post harvest soil samples reveals, tillage practices do not have influence on soil physico chemical properties. But favorable physical environment of maximum porosity of 47.2 % was recorded in the minimum tillage (MT)-furrow irrigated raised bed (FIRB) which was on par with zero tillage (46.1%) and minimum tillage (MT)-flat bed (45.7%). Higher population of bacteria, fungi and actinomycetes of 74 cfu x 10-6 g/soil, 35 cfu x 10-4 g/soil and 21 cfu x 10-3 g/soil recorded respectively in the zero tillage. The zero tillage also recorded high dehydrogenase activity of 101 mg TPF/kg/24hours. The soil carbon pool reveals that minimum tillage with FIRB treatment recorded higher water soluble carbon (WSC). But zero tillage recorded higher potassium permanganate oxidisable organic carbon (PMOC) (797mg/kg) and WBC (6920 mg/kg). Among the treatments, zero tillage recorded higher carbon stock value of 13.12 Mg/ha These results indicated that zero tillage can be recommended for maintaining soil fertility as well as store more carbon to protect our environment.
Pages: 480-485 | 600 Views 15 Downloads
How to cite this article:
K Sathiya Bama, E Somasundaram, S Thiageshwari. Influence of tillage practices on soil physical chemical and biological properties under cotton maize cropping sequence. Int J Chem Stud 2017;5(5):480-485.