Effect of long-term fertilizer application on C-sequestration and sustainable yields of finger millet and groundnut grown under rotation in semi-arid Alfisols

2018 ◽  
Vol 49 (16) ◽  
pp. 2074-2090
Author(s):  
A. Sathish ◽  
G.R. Maruthi Sankar ◽  
B.K. Ramachandrappa ◽  
H.K. Ashoka
Keyword(s):  
Finger Millet ◽  
C Sequestration ◽  
Fertilizer Application ◽  
Semi Arid

The residual effectiveness of phosphorus for stylosanthes pastures on red and yellow earths in the semi-arid tropics

Soil Research ◽  
1985 ◽  
Vol 23 (2) ◽  
pp. 211 ◽  
Author(s):  
ME Probert ◽  
J Williams
Keyword(s):  
Soil Phosphorus ◽  
Fertilizer Application ◽  
Yield Data ◽  
Stylosanthes Hamata ◽  
Phosphorus Requirements ◽  
Term Maintenance ◽  
Semi Arid ◽  
Residual Effectiveness ◽  
Extractable Soil

A mathematical description is presented of the effects through time of phosphorus fertilizer application on the growth of Stylosanthes hamata cv. Verano and on changes in extractable soil phosphorus on a red and a yellow earth in the semi-arid tropics. For the five years of observations, the models used provided reasonable descriptions of both aspects. It was not possible, however, to clearly demonstrate which of two functions tested better described the decreasing effectiveness of phosphorus with time. The simpler exponential function provided as good a fit to the yield data as did the function proposed by Barrow, whilst for the extractable phosphorus data the latter did explain a significantly higher proportion of the variance, but its coefficients could not be estimated with great precision. The results show that the phosphorus requirements of such pastures on these soils are modest. Extractable soil phosporus levels of approximately 12 �g g-1 in either 0.005 M H2SO4 or 0.5 M NaHCO3 are indicated as being adequate to ensure near-maximum yields of the legume. Long-term maintenance fertilizer needs as predicted by the models are discussed.

scholarly journals Effect of Long-Term Double Rice Cultivation with Different Management Practices on C Sequestration and Economics under Hot Semi-Arid Climate in India

2017 ◽  
Vol 6 (7) ◽  
pp. 1989-1996
Author(s):  
A. Krishna Chaitanya ◽  
Shyam Prasad Majumder ◽  
Dhaneshwar Padhan ◽  
Shrikant Badole ◽  
Ashim Datta ◽  
...  
Keyword(s):  
Management Practices ◽  
C Sequestration ◽  
Rice Cultivation ◽  
Arid Climate ◽  
Double Rice ◽  
Semi Arid

scholarly journals Is yearly rainfall amount a good predictor for agriculture viability in drylands? Modelling traditional cultivation practices of drought-resistant crops: an ethnographic approach for the study of long-term resilience and sustainability

2020 ◽  
Author(s):  
Abel Ruiz-Giralt ◽  
Stefano Biagetti ◽  
Marco Madella ◽  
Carla Lancelotti
Keyword(s):  
Finger Millet ◽  
Agricultural Land ◽  
Agricultural Practices ◽  
Cross Cultural ◽  
Global Perspective ◽  
Annual Rainfall ◽  
Ethnographic Approach ◽  
Test Models ◽  
Semi Arid

FAO guidelines on water requirements for plant growth in the absence of irrigation, stipulate that cultivation is not viable in areas with less than 450mm of annual rainfall. Indeed, in all maps of agricultural land use, most hyper-arid, arid, and semi-arid drylands are considered unproductive. Yet, modern societies in arid and semi-arid drylands still practice rainfed cultivation under regimes of much lower annual rainfall. This paper presents the results of ethnographic and cross-cultural investigations in the cultivation of Pearl millet, Finger millet and Sorghum, with a global perspective. We use published ethnographic material and novel data collected on the field to build and test models that display the interaction of ecological and geographic variables in explaining agricultural practices. The aim of this research is to show how rainfed agriculture is practised much more often, and in much more suitable areas, than normally reported. This holds the potential for the understanding of how these practices can play a pivotal role for long-term resilience and future sustainability of agricultural systems in drylands.

Effects of long-term biochar and biochar-based fertilizer application on brown earth soil bacterial communities

2021 ◽  
Vol 309 ◽  
pp. 107285
Author(s):  
Mengyu Gao ◽  
Jinfeng Yang ◽  
Chunmei Liu ◽  
Bowen Gu ◽  
Meng Han ◽  
...  
Keyword(s):  
Bacterial Communities ◽  
Fertilizer Application ◽  
Soil Bacterial Communities ◽  
Soil Bacterial

scholarly journals Soil Organic Carbon Dynamics in Semi-Arid Irrigated Cropping Systems

Agronomy ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 484
Author(s):  
Andrew M. Bierer ◽  
April B. Leytem ◽  
Robert S. Dungan ◽  
Amber D. Moore ◽  
David L. Bjorneberg
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Empirical Data ◽  
Cropping Systems ◽  
C Sequestration ◽  
Conventional Tillage ◽  
Dndc Model ◽  
Application Timing ◽  
Winter Triticale ◽  
Semi Arid

Insufficient characterization of soil organic carbon (SOC) dynamics in semi-arid climates contributes uncertainty to SOC sequestration estimates. This study estimated changes in SOC (0–30 cm depth) due to variations in manure management, tillage regime, winter cover crop, and crop rotation in southern Idaho (USA). Empirical data were used to drive the Denitrification Decomposition (DNDC) model in a “default” and calibrated capacity and forecast SOC levels until 2050. Empirical data indicates: (i) no effect (p = 0.51) of winter triticale on SOC after 3 years; (ii) SOC accumulation (0.6 ± 0.5 Mg ha–1 year–1) under a rotation of corn-barley-alfalfax3 and no change (p = 0.905) in a rotation of wheat-potato-barley-sugarbeet; (iii) manure applied annually at rate 1X is not significantly different (p = 0.75) from biennial application at rate 2X; and (iv) no significant effect of manure application timing (p = 0.41, fall vs. spring). The DNDC model simulated empirical SOC and biomass C measurements adequately in a default capacity, yet specific issues were encountered. By 2050, model forecasting suggested: (i) triticale cover resulted in SOC accrual (0.05–0.27 Mg ha–1 year–1); (ii) when manure is applied, conventional tillage regimes are favored; and (iii) manure applied treatments accrue SOC suggesting a quadratic relationship (all R2 > 0.85 and all p < 0.0001), yet saturation behavior was not realized when extending the simulation to 2100. It is possible that under very large C inputs that C sequestration is favored by DNDC which may influence “NetZero” C initiatives.

Long-term impacts of infrequent biosolids applications on chemical and microbial properties of a semi-arid rangeland soil

2005 ◽  
Vol 42 (3) ◽  
pp. 258-266 ◽  
Author(s):  
Tarah S. Sullivan ◽  
Mary E. Stromberger ◽  
Mark W. Paschke ◽  
James A. Ippolito
Keyword(s):  
Microbial Properties ◽  
Semi Arid ◽  
Arid Rangeland
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