To explore the effects of different tillage systems on soil respiration and root respiration under rain-fed condition. Based on a short-term experiment, this paper investigated soil respiration in summer @entity4336 growth season under four tillage treatments including subsoiling tillage (ST), no tillage (NT), @entity346 ( @entity346 ) and moldboard plow tillage (CT). The contribution of root respiration using root exclusion method was also discussed. The results showed that soil respiration rate presented a single peak trend under four tillage methods during the summer @entity4336 growing season, and the maximum value was recorded at the heading stage. The trends of soil respiration were as follows: heading stage > flowering stage > grain filling stage > maturity stage > jointing stage > seedling stage. The trends of soil respiration under different tillage systems were as follows: CT > ST > @entity346 > NT. There was a significant correlation between soil respiration rate and soil temperatures (P < 0.05), which could explain 35%-75% variability of soil respiration using exponential function equation. However, there was no significant correlation between soil respiration rate and soil moisture. Root respiration accounted for 45.13%-56.86% of the proportion of soil respiratio n with the mean value 51.72% during the summer @entity4336 growing season under different tillage systems. Therefore, root exclusion method could be used to study the contribution of crop growth to @entity505 emission, to compare effects of different tillage systems on the contribution of root respiration provides the bases for selecting the measures to slow down the decomposition of soil @entity505 .

[Effects of Tillage on Soil Respiration and Root Respiration Under Rain-Fed Summer XXXX Field].

@entity505 :: ('MESH:D002244', 'Chemical') :: ['carbon'] @entity4336 :: ('381124', 'Species') :: ['corn'] @entity346 :: ('MESH:D009759', 'Disease') :: ['RT', 'rotary tillage']
@entity4336 :: (381124,Species) :: ['Corn']
