LONG Qian, DONG Shigang, ZHU Changwei, et al. Effects of Different Tillage Modes on Soil Nutrient and Crop Yield Under Wheat-Maize Rotation System in the Fluvo-aquic Soil[J]. 2019, 33(4): 167-174.
DOI:
LONG Qian, DONG Shigang, ZHU Changwei, et al. Effects of Different Tillage Modes on Soil Nutrient and Crop Yield Under Wheat-Maize Rotation System in the Fluvo-aquic Soil[J]. 2019, 33(4): 167-174. DOI: 10.13870/j.cnki.stbcxb.2019.04.024.
Effects of Different Tillage Modes on Soil Nutrient and Crop Yield Under Wheat-Maize Rotation System in the Fluvo-aquic Soil
The objective of this study was to select the optimum tillage pattern though studying the effect of the different tillage patterns on the soil nutrient and crop yield. The field experiment was conducted with split plot design with six treatments:two main treatments with rotary tillage and deep tillage in wheat season
combined with three subsidiary treatments with no-tillage sowing
subsoiling between the row and subsoiling in the row in maize season
including (1) rotary tillage + no-tillage sowing (RT-NT); (2) rotary tillage +subsoiling between the row (RT-SBR); (3) rotary tillage + subsoiling in the row (RT-SIR); (4) deep tillage + no-tillage sowing (DT-NT); (5) deep tillage + subsoiling between the row (DT-SBR); (6) deep tillage +subsoiling in the row (DT-SIR). The results showed that
all the soil nutrient contents decreased with soil depths in both wheat and maize seasons. In wheat season
the total nitrogen (TN)
alkali-hydrolyzable nitrogen (AN)
available phosphorus (AP) and nitrate nitrogen (NO3--N) contents under rotary tillage treatments were significantly higher than those under deep tillage treatments; while
the soil organic matter (SOM)
TN
AN
AP
NO3--N
and ammonium nitrogen (NH4+-N) contents in 30-40 cm was increased under deep tillage treatments. In maize season
the SOM content in 0-30 cm under DT-NT treatment was increased by 40.1%~64.3% compared with RT-NT treatment. The TN content in 0-30 cm was increased under RT-SBR and RT-SIR treatment
with the highest value of 1.4 g/kg in 0-10 cm under RT-SBR treatment. The AN content was increased by 15.0%~25.3% in 0-20 cm under RT-SIR treatment compared with RT-NT treatment. In 0-40 cm
the highest AP content was observed under DT-SBR treatment
and the highest available potassium (AK) content was under RT-SBR treatment. The NO3--N (8.5~30.4 mg/kg) and NH4+-N (2.6~8.9 mg/kg) contents in 20-50 cm under DT-SIR treatment were significantly higher than the others. Compared with the wheat season
the SOM in 10-20 cm
AN
AP and AK in 0-50 cm
NO3--N and NH4+-N in 40-50 cm were increased in maize season. In maize season
the ear length
100-grain weight
harvest index and yield under DT-SBR and DT-SIR were significantly higher than the others
and the yield was increased by 6.4%~10.8% under DT-SBR and DT-SIR compared with RT-NT treatment. The fertilizer partial productivity and economic benefit was highest under DT-SIR treatment in maize season. In sum
the soil nutrient contents and crop yield were improved under the DT-SIR treatment
which was suggested as the optimum practice in this study.
López-Fando C, Pardo M T. Soil carbon storage and stratification under different tillage systems in a semi-arid region[J].Soil and Tillage Research,2011,111:224-230.
Schneider F, Don A, Hennings I, et al. The effect of deep tillage on crop yield:What do we really know?[J]. Soil and Tillage Research,2017,174:193-204.
Vogeler I, Rogasik J, Funder U, et al. Effect of tillage systems and P-fertilization on soil physical and chemical properties, crop yield and nutrient uptake[J].Soil and Tillage Research,2009,103(1):137-143.
Martin-Rueda I, Muñoz-Guerra L M, Yunta F, et al. Tillage and crop rotation effects on barley yield and soil nutrients on a Calciortidic Haploxeralf[J].Soil and Tillage Research,2007,92(1/2):1-9.
Guan D H, Mahdi M, Al-Kaisi, et al. Tillage practices affect biomass and grain yield through regulating root growth, root-bleeding sap and nutrients uptake in summer maize[J].Field Crops Research,2014,157:89-97.
Chu P F, Zhang Y L, Yu Z W, et al. Winter wheat grain yield, water use, biomass accumulation and remobilisation under tillage in the North China Plain[J].Field Crops Research,2016,193:43-53.
Shao Y H, Xie Y X, Wang C Y, et al. Effects of different soil conservation tillage approaches on soil nutrients, water use and wheat-maize yield in rainfed dry-land regions of North China[J].European Journal of Agronomy,2016,81:37-45.
Pierce F J, Fortin M C, Staton M J. Immediate and residual effects of zone-tillage on soil physical properties and corn performance[J].Soil and Tillage Research,1992,24:149-165.
Li H W, Gao H W, Wu H D, et al. Effects of 15 years of conservation tillage on soil structure and productivity of wheat cultivation in northern China[J].Australian Journal,2007,45(5):344-350.