National Academy of Agricultural Sciences (NAAS)
|
PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
The long term field experiment has been in progress since 1986 at GKVK, Bengaluru with finger millet – hybrid maize cropping sequence. Eleven treatments were replicated four times in RCBD. The archived soil samples (1986 – 2016) from this experiment were collected at five years interval and studied for different fractions of sulphur. The fractions of sulphur were in the order of organic>residual>inorganic>water soluble> available forms. All fractions of S showed an increasing trend over 30 years of cropping cycles in all the treatments. However, the treatments which did not receive any source of sulphur decreased initially (1991) in all S fractions and then increased gradually over the years and maintained slightly higher over the initial. All forms of S were maintained significantly higher over other treatments and found on par with each other in the treatments receiving 100 % NPK + FYM + lime, 100 % NPK + FYM and in 150 % NPK. They found lower in the treatments receiving sulphur free fertilizers (DAP as P source) and imbalanced supply of nutrients. Hence, application of recommended doses of fertilizers (SSP as P source) in combination with FYM is essential in maintaining available sulphur nutrient status and soil health.
Citations |
 |
 |
 |
 |
