Among-site variability in environmental and management characteristics: Effect on nutrient loss in agricultural tile drainage

2020 ◽  
Vol 46 (3) ◽  
pp. 486-499
Author(s):  
Brittany R. Hanrahan ◽  
Kevin W. King ◽  
Merrin L. Macrae ◽  
Mark R. Williams ◽  
Jedediah H. Stinner
Keyword(s):  
Tile Drainage ◽  
Nutrient Loss ◽  
Site Variability

NUTRIENT LOSSES THROUGH TILE DRAINS UNDER THREE CROPPING SYSTEMS AND TWO FERTILITY LEVELS ON A BROOKSTON CLAY SOIL

1970 ◽  
Vol 50 (3) ◽  
pp. 275-279 ◽  
Author(s):  
E. F. BOLTON ◽  
J. W. AYLESWORTH ◽  
F. R. HORE
Keyword(s):  
Nutrient Concentration ◽  
Clay Soil ◽  
Cropping Systems ◽  
Cropping System ◽  
Tile Drainage ◽  
Nutrient Loss ◽  
Plant Nutrient ◽  
Nutrient Losses ◽  
Tile Drains ◽  
Predominant Factor

Plant nutrient losses were measured in tile drainage effluent from three cropping systems on a Brookston clay soil over a 7-year period. Highest losses of N, P and K occurred with corn and lowest with bluegrass sod. Additions of N-P-K increased average losses of N, P, K, Ca and Mg. Nutrient concentration in drainage effluent varied with season with N, P, K and Ca concentration tending to be lower in the spring. The amount of water that flowed through the soil of a particular cropping system was the predominant factor influencing nutrient loss.

Rice Production in Punjab: Depletion of Water Resources and Environmental Problems

2020 ◽  
pp. 294-299
Keyword(s):  
State Government ◽  
Agricultural Development ◽  
Fruits And Vegetables ◽  
Central Government ◽  
Geographical Area ◽  
The State ◽  
Rice Production ◽  
Nutrient Loss ◽  
High Rate ◽  
Paddy Straw

Punjab has emerged as an important rice-producing state in the country. The state with 1.53 percent of the geographical area of the country produces more than 11 percent of total rice production in the country. The production of rice in Punjab increased more than 10 times due to an increase in area and yield. The growth of a rice crop at such a high rate over 20 years in Punjab is indeed a rare phenomenon in the history of agricultural development in the world. Due to extensive cultivation of rice in Punjab, the state has been over-exploiting the groundwater, more than its recharge. Most of the tube-well dominated districts of the state, witnessed the fall in water table more than 20 to 30 cm per year. To dispose of the paddy straw, the farmers of Punjab generally opt for burning it. This practice of burning of paddy straw besides nutrient loss is posing a serious problem for the public health and transportation system. Rice has now become a problematic crop for Punjab state due to its ill effects on its natural resources, that is, the water and soil environmental degradation. The Punjab Agricultural University experts and other committees estimated that the total groundwater recharge from all sources can sustain/support only 16-17 lakh ha of paddy in Punjab. The area under the crop increased to 29 lakh ha which was unsustainable in the long run. The area under rice in Punjab should be stabilized at 16-17 lakh ha and the remaining paddy area should be shifted to other crops like pulses, oilseeds, maize, fruits, and vegetables, etc. requiringless water, to achieve proper water balance. Thus diversification of some area from paddy is in the interest of Punjab farmers, State government and the Central government for long term food security on a sustainable basis.

Effect of slope and planting mode on erosion and nutrient loss in purple soils

2009 ◽  
Vol 17 (2) ◽  
pp. 239-243 ◽  
Author(s):  
Jing ZHOU ◽  
Bing-Hui HE ◽  
Li-Zhi LIU ◽  
Dan HE
Keyword(s):  
Nutrient Loss

Nutrient‐Loss Trends for Vegetable and Citrus Fields in West‐Central Florida: II. Phosphate

1995 ◽  
Vol 24 (1) ◽  
pp. 101-106 ◽  
Author(s):  
C. D. Stanley ◽  
B. L. McNeal ◽  
P. R. Gilreath ◽  
J. F. Creighton ◽  
W. D. Graham ◽  
...  
Keyword(s):  
Nutrient Loss ◽  
Central Florida ◽  
West Central

Dissolved Phosphorus Losses in Tile Drainage under Subirrigation

2006 ◽  
Vol 41 (1) ◽  
pp. 63-71 ◽  
Author(s):  
Nicolas Stämpfli ◽  
Chandra A. Madramootoo
Keyword(s):  
Water Table ◽  
Residual Effect ◽  
Surface Water Quality ◽  
Soil Surface ◽  
Quality Standard ◽  
Tile Drainage ◽  
Agricultural Field ◽  
Shallow Water Table ◽  
Dissolved Phosphorus ◽  
Water Table Control

Abstract Recent studies have shown subirrigation (SI) to be effective in reducing nitrate losses from agricultural tile drainage systems. A field study was conducted from 2001 to 2002 in southwestern Québec to evaluate the effect of SI on total dissolved phosphorus (TDP) losses in tile drainage. In an agricultural field with drains installed at a 1-m depth, a SI system with a design water table depth (WTD) of 0.6 m below the soil surface was compared with conventional free drainage (FD). Subirrigation increased drainage outflow volumes in the autumn, when drains were opened and water table control was interrupted for the winter in the SI plots. Outflows were otherwise similar for both treatments. Throughout the study, the TDP concentrations in tile drainage were significantly higher with SI than with FD for seven out of 17 of the sampling dates for which data could be analyzed statistically, and they were never found to be lower for plots under SI than for plots under FD. Of the seven dates for which the increase was significant, six fell in the period during which water table control was not implemented (27 September 2001 to 24 June 2002). Hence, it appears that SI tended to increase TDP concentrations compared with FD, and that it also had a residual effect between growing seasons. Almost one-third of all samples from the plots under SI exceeded Québec's surface water quality standard (0.03 mg TDP L-1), whereas concentrations in plots under FD were all below the standard. Possible causes of the increase in TDP concentrations in tile drainage with SI are high TDP concentrations found in the well water used for SI and a higher P solubility caused by the shallow water table.

Relationships Between Soluble and Sediment Nutrient Losses, Land Use and Types of Soil in Agricultural Watersheds

1977 ◽  
Vol 12 (1) ◽  
pp. 121-134 ◽  
Author(s):  
G.H. Neilsen ◽  
A.F. Mackenzie
Keyword(s):  
Land Use ◽  
Inorganic Nitrogen ◽  
High Surface ◽  
Sediment Concentration ◽  
Chemical Oxidation ◽  
Nutrient Loss ◽  
Potassium Sulfate ◽  
Agricultural Watersheds ◽  
Nutrient Losses ◽  
Calcium Magnesium

Abstract Seven agricultural watersheds in southwestern Quebec and southeastern Ontario, ranging in area from 2,000 to 20,000 hectares, were monitored systematically during 1973–75 for soluble inorganic nitrogen, total soluble phosphorus, calcium, magnesium, potassium, sulfate-sulfur, chemical oxidation demand, discharge, suspended sediment concentration, sediment Kjeldahl nitrogen, Bray extractable phosphorus, and ammonium acetate extractable calcium, magnesium and potassium. For 1974–75, annual Kg/ha, loss rates were calculated for the soluble and sediment associated nutrients. Losses varied with nutrient and watershed, with volume of runoff being an important control of nutrient loss variation. Significant amounts of SO4−S in precipitation were suggested by an average watershed soluble N:P:S loss ratio of 10:1:92. Sediment nutrient losses were especially important for N and P, comprising over 40% of their total loss. The importance of spring snow-melt runoff was demonstrated by the high proportion of all nutrients lost at this time. Correlations of nutrient loss, land use and soils suggested that certain land uses resulted in increased stream nutrient losses while increased watershed area of soils with a high surface runoff potential was particularly conducive to increased soluble nutrient and sediment losses.

Nitrogen and phosphorus in the Vistula River, Poland -- changes from source to mouth

1994 ◽  
Vol 30 (5) ◽  
pp. 177-186 ◽  
Author(s):  
Karin Sundblad ◽  
Andrzej Tonderski ◽  
Jacek Rulewski
Keyword(s):  
Central Region ◽  
Northern Region ◽  
Point Sources ◽  
Nutrient Loss ◽  
Phosphorus Concentration ◽  
Nitrogen And Phosphorus ◽  
Concentration Data ◽  
Diffuse Sources ◽  
Vistula River ◽  
South Central

Nitrogen and phosphorus concentration data representing samples collected once a month for nine months at 13 locations along the Vistula River are considered in a preliminary discussion of the sources of the nutrients transported to the Baltic Sea. Concentrations in relation to flow data indicated substantial differences between subbasins. Based on those differences, on the area-specific nutrient loss for a six-month period and on the wastewater discharge in each subbasin, four regions could be recognized in the river basin: i) the southern region with a large impact of point sources, ii) the south central region, where diffuse sources seemed to be of major importance, iii) the north central region with a combined effect of point and diffuse sources, and retention in two reservoirs, iv) the northern region where point sources seemed to be the dominating source, at least for phosphorus. Our results illustrate the importance of differences in phosphorus retention between the basins. Long-term retention along the course of the river, particularly in the two reservoirs, must be estimated to allow proper source apportionment in the Vistula basin. Concentration decreases in the Wloclawek Reservoir varied between 44 and 68% for P, and 11 to 37% for N, in the months with significant retention. In some months, however, concentrations increased, indicating a release of nutrients.

INTER- AND INTRA-SITE VARIABILITY OF COSEISMIC SUBSIDENCE ESTIMATES FROM NORTHERN HUMBOLDT BAY, CALIFORNIA

2017 ◽  
Author(s):  
J. Scott Padgett ◽  
◽  
Simon E. Engelhart ◽  
Harvey Kelsey ◽  
Robert C. Witter
Keyword(s):  
Coseismic Subsidence ◽  
Site Variability

NITRATE REDUCTION FROM TILE DRAINAGE IN A RESTORED OXBOW WETLAND

2016 ◽  
Author(s):  
Stephen J. Kalkhoff ◽  
◽  
Joseph Schubauer-Berigan
Keyword(s):  
Nitrate Reduction ◽  
Tile Drainage
Sign in / Sign up

Export Citation Format

Share Document