Effects of Dairy Manure Nutrient Management on Shallow Groundwater Nitrate: A Case Study

2001 ◽  
Author(s):  
Thomas Harter ◽  
Marsha C. Mathews ◽  
Roland D. Meyer
Keyword(s):  
Nutrient Management ◽  
Shallow Groundwater ◽  
Dairy Manure

EFFECTIVENESS OF LIQUID–SOLID SEPARATION FOR TREATMENT OF FLUSHED DAIRY MANURE: A CASE STUDY

2001 ◽  
Vol 17 (3) ◽  
Author(s):  
J. P. Chastain ◽  
M. B. Vanotti ◽  
M. M. Wingfield
Keyword(s):  
Dairy Manure

scholarly journals Sustainable agriculture: The study on farmers’ perception and practices regarding nutrient management and limiting losses

2018 ◽  
Vol 36 (1) ◽  
pp. 67-75 ◽  
Author(s):  
Barbara Kiełbasa ◽  
Stefan Pietrzak ◽  
Barbro Ulén ◽  
Jan-Olof Drangert ◽  
Karin Tonderski
Keyword(s):  
Sustainable Agriculture ◽  
Nutrient Management ◽  
Low Cost ◽  
Agricultural Practices ◽  
Farm Management ◽  
General Idea ◽  
Limiting Nutrient ◽  
Scientific Project ◽  
Sustainable Agricultural Practices

AbstractThe paper presents the results of a scientific project focused on limiting nutrient losses from farms by introducing measures to apply fertilizers in a more sustainable way. It is a case study of selected aspects of farm management, focussing on the issue of sustainable agriculture and their tools. The main aim of the study was to analyse and evaluate farmers’ knowledge of the fertilizing process and its aspects, as well as applying sustainable agricultural activities on farms. The study emphasised the importance of nutrient management, as very important for sustainable farming. Also, the links between farmers’ opinions and their activities were analysed. The important issue concerned measures for sustainable farm management introduced on the farms, as well as measures to limit nutrient leaching into groundwater. Twenty-eight farmers from two regions in Poland were interviewed about their perceptions for the case study. In general, the farmers considered their farm activities to be more sustainable than in the past. They demonstrated an understanding of the general idea of sustainable agriculture. However, many farmers still demonstrated a poor grasp of nutrient flows and nutrient balances on farms. Their knowledge and perception was based on general, rather than specific knowledge gleaned from an academic/vocational course. The farmers demonstrated a realization that there were some new, or low-cost measures that could be introduced to make management more sustainable and pro-environmental, but there was still a need for wider adoption of sustainable agricultural practices.

scholarly journals Shallow groundwater in sub-Saharan Africa: neglected opportunity for sustainable intensification of small-scale agriculture?

2016 ◽  
Author(s):  
John Gowing ◽  
Geoff Parkin ◽  
Nathan Forsythe ◽  
David Walker ◽  
Alemseged Tamiru Haile ◽  
...  
Keyword(s):  
Groundwater Resources ◽  
Climatic Variability ◽  
Shallow Groundwater ◽  
Sustainable Intensification ◽  
Sub Saharan Africa ◽  
Small Scale ◽  
Groundwater Levels ◽  
Sub Saharan ◽  
Small Scale Irrigation

Abstract. There is a need for an evidence-based approach to identify how best to support development of groundwater for small scale irrigation in sub-Saharan Africa (SSA). We argue that it is important to focus this effort on shallow groundwater resources which are most likely to be used by poor rural communities in SSA. However, it is important to consider constraints, since shallow groundwater resources are likely to be vulnerable to over-exploitation and climatic variability. We examine here the opportunities and constraints and draw upon evidence from Ethiopia. We present a methodology for assessing and interpreting available shallow groundwater resources and argue that participatory monitoring of local water resources is desirable and feasible. We consider possib le models for developing distributed small-scale irrigation and assess its technical feasibility. Because of power limits on water lifting and also because of available technology for well construction, groundwater at depths of 50 m or 60 m cannot be regarded as easily accessible for small-scale irrigation. We therefore adopt a working definition of shallow groundwater as < 20 m depth. This detailed case study in the Dangila woreda in Ethiopia explores the feasibility of exploiting shallow groundwater for small-scale irrigation over a range of rainfall conditions. Variability of rainfall over the study period (9 % to 96 % probability of non-exceedance) does not translate into equivalent variability in groundwater levels and river baseflow. Groundwater levels, monitored by local communities, persist into the dry season to at least the end of December in most shallow wells, indicating that groundwater is available for irrigation use after the cessation of the wet season. Arguments historically put forward against the promotion of groundwater use for agriculture in SSA on the basis that aquifers are unproductive and irrigation will have unacceptable impacts on wetlands and other groundwater-dependent ecosystems appear exaggerated. It would be unwise to generalise from this case study to the whole of SSA, but useful insights into the wider issues are revealed by the case study approach. We believe there is a case for arguing that shallow groundwater in sub-Saharan Africa represents a neglected opportunity for sustainable intensification of small-scale agriculture.

Arsenic-rich shallow groundwater in sandy aquifer systems buffered by rising carbonate waters: A geochemical case study from Mannar Island, Sri Lanka

2018 ◽  
Vol 633 ◽  
pp. 1352-1359 ◽  
Author(s):  
U.G.C. Bandara ◽  
Saranga Diyabalanage ◽  
Christian Hanke ◽  
Robert van Geldern ◽  
Johannes A.C. Barth ◽  
...  
Keyword(s):  
Sri Lanka ◽  
Shallow Groundwater ◽  
Aquifer Systems ◽  
Sandy Aquifer

Response of the Illinois Soil Nitrogen Test to liquid and composted dairy manure applications in a corn agroecosystem

2006 ◽  
Vol 86 (4) ◽  
pp. 655-663 ◽  
Author(s):  
J H Klapwyk ◽  
Q M Ketterings ◽  
G S Godwin ◽  
D. Wang
Keyword(s):  
New York ◽  
Soil Nitrogen ◽  
Nutrient Management ◽  
Amino Sugar ◽  
Dairy Manure ◽  
Corn Yield ◽  
Potentially Mineralizable N ◽  
Manure Amendments ◽  
N Management ◽  
Over Time

Dairy manure is important for corn (Zea mays L.) production in New York. Optimizing corn yield while minimizing environmental loss with manure nutrients is often a challenge. A potential tool for improving N management is the Illinois Soil Nitrogen Test (ISNT), which estimates amino sugar N, a pool of potentially mineralizable N for corn uptake. The objectives of this study were to determine (1) the short-term effects of manure applications on ISNT-N, and (2) the longer-term impacts of annual additions of composted and liquid dairy manure on ISNT-N. A 6-wk incubation study showed that NH4-N from manure temporarily (< 2 wk) increased ISNT results. A 4-yr field study was conducted with annual spring applications of two rates of composted dairy manure (45 and 77 Mg ha-1) and two liquid dairy manure rates (63.5 and 180 kL ha-1). Results showed that ISNT-N slightly decreased over time in check plots (no manure or fertilizer additions) and that increases in ISNT-N over time in compost and liquid manure amended plots were consistent with changes in N credits currently given to manures in New York. Our results suggest that the ISNT accounts for N in previously applied compost and manure amendments, but that samples should not be taken within 2-wk following manure addition. Key words: Amino sugar, compost, Illinois Soil Nitrogen Test, nitrogen, manure, nutrient management

Sign in / Sign up

Export Citation Format

Share Document