Fabrication and testing of a low-cost ceramic-cup soil solution sampler

Bajracharya, Rosha M; Homagain, A.

doi:10.1016/j.agwat.2006.01.013

Cited by 8 publications

(4 citation statements)

References 6 publications

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“…After inserting the lysimenter into the ground, the soil around the hole was packed down firmly to secure the lysimeter and assure good contact with the soil, thus avoiding preferential water flow downwards along the tube. A similar method was applied by Bajracharya and Homagain (2006) to measure the nutrient loss from leaching on Bari land. Leachate could be collected only during the post monsoon season (August) when soil became partially saturated and rainfall was sufficiently heavy to estimate the nutrient losses (NO 3 -N and PO 4 -P) through leaching.…”

Section: Measurement Of Nutrient Losses Due To Runoff and Erosionmentioning

confidence: 99%

Effects of soil and crop management practices on yields, income and nutrients losses from upland farming systems in the Middle Mountains region of Nepal

Tiwari

Sitaula²,

Bajracharya

et al. 2009

Nutr Cycl Agroecosyst

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On-farm runoff plots were established during 2004 and monitored for 4 years in the Pokhare Khola watershed (Nepal) in a completely randomized design with four replications of each three treatments: traditional Farmer Practice (FP) (Zea mays-Eleusine coracana), Reduced Tillage (RT; Z. mays-Vigna ungeuculata), and Commercial Vegetable with double dose of farm yard manure (CV; Z. mays-Capsicum species) to evaluate treatment effects on soil nutrient losses, nutrient balances and crop income on Bari land (rainfed terraces). Nutrient removal due to crop harvest was found to be significantly higher than nutrient loss through soil erosion, and CV treatment exhibited a significantly higher N uptake (123 kg ha -1 year -1 ) through crop harvest than other treatments. Moreover, the CV treatment produced significantly higher income per unit area of Bari land than the other treatments. Soil organic carbon and major nutrients losses (NPK) through soil erosion were minimal [25.5 kg ha -1 year -1 soil organic carbon (SOC) and 5.6:0.02:0.12 kg ha -1 year -1 nitrogen (N), phosphorus (P), potassium (K), respectively]. Result showed that no nutrients were lost through leaching. Nutrient losses due to soil erosion and runoff were lower than previously reported in the Middle Mountain region, indicating a need to re-evaluate the soil erosion and nutrient loss problems in this region. Interventions such as reduced tillage and double dose of FYM with vegetable production were found to be effective in maintaining soil fertility and increasing farm income compared to the traditional maize-millet production system. The nutrient balance calculations suggest that integrated nutrient management techniques such as residue incorporation and application of FYM with a minimum application of chemical fertilizer are potentially sustainable production approaches for the Mid-hills of Nepal.

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Section: Measurement Of Nutrient Losses Due To Runoff and Erosionmentioning

confidence: 99%

Effects of soil and crop management practices on yields, income and nutrients losses from upland farming systems in the Middle Mountains region of Nepal

Tiwari

Sitaula²,

Bajracharya

et al. 2009

Nutr Cycl Agroecosyst

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“…A manual piston pump was used to generate a vacuum of −60 kPa in the lysimeter to collect soil solution samples. The lysimeter construction and operation were adopted from Bajracharya and Homagain [30].…”

Section: Soil Solution Collectionmentioning

confidence: 99%

Crop Rotation and Nitrogen Fertilizer on Nitrate Leaching: Insights from a Low Rainfall Study

Bruno,

Araújo,

Merten

et al. 2024

Nitrogen

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The intensive use of agricultural fertilizers containing nitrogen (N) can increase the risk of nitrate (NO3−) leaching. However, little information exists regarding its interaction with other factors that influence NO3− leaching, such as no-tillage, which is associated with different crop rotation schemes. The objective of this study was to quantify the leachate NO3− concentration and load below the root zone in two different crop rotations under no-tillage, with and without mineral N fertilizer. The experiment was conducted in a no-tillage area in Brazil between 2018 and 2020. The factors were two crop rotations (diversified and simplified) and two N fertilization managements (with and without N fertilizer). The soil solution was collected with suction lysimeters (1 m depth), the NO3− concentration (mg L−1) was spectrophotometrically determined, and the NO3− load (kg ha−1) was calculated from the volume of water drained and the NO3− concentration. The results were categorized into 24 evaluation periods. NO3− leaching was extremely low due to low rainfall throughout the experiment, with no significant differences between the factors and treatments. In the presence of N fertilization, leaching was substantially greater when rainfall increased, and vice versa. No significant difference was observed between the crop rotation schemes, except for one period in which the simplified soybean rotation exhibited high leaching. The evaluated treatments showed less NO3− leaching during the four periods when grass species were cultivated, indicating the importance of grasses in rotation systems.

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“…According to Goss and Ehlers (2009) lysimeters have allowed the quality of water draining from agricultural land to be determined, and the role of management practices to be evaluated. The tension lysimeter (TL) samplers are relatively inexpensive, simple to assemble, and easy to install in the field (Anderson and Xia 2001;Bailey and Anguelov 2002;Bajracharya and Homagain 2006;Weihermuller et al 2007). Soil solution collected by the TL technique reflects solutes concentrations from unsaturated flow rather than the water from saturated flow seeping into groundwater.…”

Section: Introductionmentioning

confidence: 99%

Land-use impact on soil solution constituents from an Ultisol of North Florida

Anguelov

Anguelova

Bailey

2011

Nutr Cycl Agroecosyst

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Land use management is important to maximize nutrients use efficiency and reduce losses, especially on sandy soils. Nutrient cycling in pastoral systems is different as the grazing animals are excreting back to the pasture most of the ingested nutrients. The objective of this study was to evaluate N, P, K, Ca, Mg, and Na by monitoring elements' concentrations in soil solution from bahiagrass (Paspalum notatum Flugge) pastures continually-stocked with cattle (CP) and rotationally-grazed by goats (GP) in comparison with arable land (AL). Samples were obtained by suction cup lysimeters randomly installed at three depths in an Ultisol of North Florida, USA. To evaluate nutrients in atmospheric deposition, surface and ground waters, samples from rain, nearby spring, lake and three wells on the farm were also analyzed. The results confirmed that land-use management had an effect on soil-solution N, P, K, Ca, Mg, and Na concentrations reflecting managerial and climatic conditions. The means of these nutrients ranged widely from 0.64 to 11.14 mg L -1 for N, 0.03-0.45 mg L -1 for P, 0.12-6.97 mg L -1 for K, 0.37-33.91 mg L -1 for Ca, 0.47-7.39 mg L -1 for Mg, and 1.28-4.37 mg L -1 for Na. The soil-solution N was higher from March through August (wet seasons) and lower and relatively constant between September and February (dry seasons). The N from shallow depth (0.6 m) of CP was fourfold higher than the deep (1.8 m) one and exceeded the maximum permissible level (MPL) of 10 mg L -1 . A 1.5-fold increase by depth of AL was detected, and a leaching of 53-98 kg N ha -1 was identified for both AL and CP during the wet season vs. 4-5 kg ha -1 leachable N from GP. Also, a 1-3 kg P ha -1 may be leached from CP during the wet season. The nutrients in the soil solutions tended to be higher than those in rain, lake, sprint, well, and tap waters. In groundwater however, there were episodically N concentrations as high as those in the soil solution.

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Fabrication and testing of a low-cost ceramic-cup soil solution sampler

Cited by 8 publications

References 6 publications

Effects of soil and crop management practices on yields, income and nutrients losses from upland farming systems in the Middle Mountains region of Nepal

Effects of soil and crop management practices on yields, income and nutrients losses from upland farming systems in the Middle Mountains region of Nepal

Crop Rotation and Nitrogen Fertilizer on Nitrate Leaching: Insights from a Low Rainfall Study

Land-use impact on soil solution constituents from an Ultisol of North Florida

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