scholarly journals Effects of Short-Term Soil Tillage Management on Activity and Community Structure of Denitrifiers under Double- Cropping Rice Field

2020 ◽  
Vol 30 (11) ◽  
pp. 1688-1696
Author(s):  
Haiming Tang ◽  
Chao Li ◽  
Kaikai Cheng ◽  
Lihong Shi ◽  
Li Wen ◽  
...  
Keyword(s):  
Community Structure ◽  
Rice Field ◽  
Soil Tillage ◽  
Short Term ◽  
Double Cropping

Effects of Different Soil Tillage Systems on Soil Carbon Management Index Under Double-Cropping Rice Field in Southern China

2019 ◽  
Vol 111 (1) ◽  
pp. 440-447 ◽  
Author(s):  
Haiming Tang ◽  
Xiaoping Xiao ◽  
Chao Li ◽  
Wenguang Tang ◽  
Kaikai Cheng ◽  
...  
Keyword(s):  
Soil Carbon ◽  
Rice Field ◽  
Southern China ◽  
Soil Tillage ◽  
Tillage Systems ◽  
Carbon Management ◽  
Double Cropping ◽  
Carbon Management Index

scholarly journals Short-term effect of soil tillage and NPK fertilization rates on soil carbon sequestration and yield of Colocasia esculenta Schott in two micro-environments in SE, Nigeria

2019 ◽  
pp. 96-101
Keyword(s):  
Soil Quality ◽  
Soil Depth ◽  
Block Design ◽  
Conventional Tillage ◽  
Colocasia Esculenta ◽  
Term Effect ◽  
Soil Tillage ◽  
Short Term ◽  
Short Term Effect ◽  
C Storage

Quantification of soil organic carbon cycling as impacted by soil and crop man- agement practices is required for C storage and soil quality improvement investi- gations. This study assessed the short-term effect of conventional tillage (CT) and No-Tillage (NT) practices on SOC sequestration and yield of cocoyam (Colocasia esculenta). The experiment was conducted simultaneously at two lo- cations (06◦52' N, 07◦15' E and 06◦ 26' N; 07◦16' E) in southeast Nigeria. A Ran- domized Complete Block Design with five replications and four treatments com- prised of CT and NT, respectively, with 150 and 300 Kg ha-1 of NPK 15:15:15, was used. Soil quality attributes were measured at two soil depths (0-20 cm and 20-40 cm) in both locations and analyzed. The results indicated that the quantity of carbon sequestered in the soil at 0-20 cm soil depth for both sites was 46.7- 90.9 and 65.0-117.9 Mg ha-1, respectively, for the two planting seasons in NT plots treated with 300 Kg ha-1 of NPK. This was followed by NT plots treated with 150 Kg ha-1 of NPK, which sequestered 55.5-86.2 and 46.7-91.9 Mg ha-1 SOC. CT plots that received 300 Kg ha-1 NPK with 11.3-47.6 Mg/ha SOC had 44% and 28% lower stored SOC when compared to NT, NPK 150 Kg ha-1 plots for the two-planting season respectively. This indicates that CT practices signifi- cantly limit SOC sequestration. CT with 300 Kg of NPK 15:15:15 gave the high- est corm yield, followed by No-till with 300 Kg ha-1. A better edaphic condition provided by CT was compensated for by higher doses of N fertilizer in NT Plots.

Sign in / Sign up

Export Citation Format

Share Document