straw for half straw at 3.5-year decomposition. But single and double
straw significantly increased TN after different decomposition
durations. On average, three treatment combinations increased TN
above the straw layer by 7.65%, 12.94% and 11.18%, respectively. TN
below the straw layers was reduced on average by 7.31%, 16.67%
and 20.33% under the straw layer with half, single and double straw.