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  • Details on the Nitrate Quick Test - Salinas Valley ...

    2019-4-1 · The soil nitrate quick test is often used just before a fertilizer application. If soil nitrate values are high enough, it is possible to reduce the fertilizer rate or even skip the fertilizer application without jeopardizing crop yield because the existing nitrate in the soil supplies the plant with nitrogen in the same way as applied fertilizer.

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  • Using the Pre-Sidedressing Soil Nitrate ‘Quick Test’ to ...

    2021-2-24 · 5) Dip a EM Quant® nitrate test strip into the clear zone of solution, shake off excess solution, and wait 60 seconds. Compare the color that has developed on the strip with the color chart provided. When the strip color is between two color samples on the chart, interpolate the nitrate concentration of the strip as closely as possible.

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  • HOW TO USE THE NITRATE QUICK TEST

    2016-8-24 · Interpreting the Results of Nitrate Quick Test Strips References Purpose of On-farm Nitrate Testing In-field nitrate quick tests (NQTs) can be a cost effective tool to determine residual soil nitrate-nitrogen concentration and make fertilizer management decisions to match crop demand.

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  • Pre-Plant Nitrogen Response in Irrigated Corn |

    Response of Water and Nitrogen Losses to Water Management Practices and Green Manure Application in Lowland Paddy Fields ... Field experiments in a typical rice agricultural catchment in the Zhanghe Irrigation District in China were conducted in 2014 and 2015 to evaluate and quantify the connections between hydrological pathways and water and N ...

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  • NMSU: Nitrogen Monitoring Techniques for

    2010-10-7 · Sample SAS program used to test significance of main effects of planting system, irrigation level, N application rate interactions on yield, irrigation water use efficiency and gross return. Program variable names are: Irrig = irrigation rates, Row = planting systems, N = nitrogen rates, irr_rep = irrigation randomization, Blk = planting strip block, yldtot = measured total yield.

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  • Response of Water and Nitrogen Losses to Water

    2008-2-1 · Productivity and resource-use efficiency in corn (Zea mays L.) are crucial issues in sustainable agriculture, especially in high-demand resource crops such as corn.The aims of this research were to compare irrigation scheduling and nitrogen fertilization rates in corn, evaluating yield, water (WUE), irrigation water (IRRWUE) and nitrogen use (NUE) efficiencies.

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  • Planting System Effect on Yield Response of Russet ...

    2013-2-1 · Quick results allow for more timely nitrogen applications versus a best guess.” McGraw has observed Solum’s efforts. “They are spot on and very exact,” he says. “Regardless of the process, farmers need to test at least twice per season. Three is better.” Three-test regimen

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  • Yield response of corn to irrigation and nitrogen ...

    2009-11-19 · Response of Bell Pepper to Subsurface Drip Irrigation and Surface Drip Irrigation under Different Water and Nitrogen Coupling Conditions Revised manuscript submitted to Qinghua Kong a, Guangyong Li a,*, Yonghong Wang b, Hongxu Huo a a College of Water Conservancy & Civil Engineering China Agricultural University,Beijing 100083, P.R. China

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  • HOW TO USE THE NITRATE QUICK TEST

    2016-8-24 · Interpreting the Results of Nitrate Quick Test Strips References Purpose of On-farm Nitrate Testing In-field nitrate quick tests (NQTs) can be a cost effective tool to determine residual soil nitrate-nitrogen concentration and make fertilizer management decisions to match crop demand.

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  • Response of Water and Nitrogen Losses to Water

    Response of Water and Nitrogen Losses to Water Management Practices and Green Manure Application in Lowland Paddy Fields ... (42.2–54.0%) were detected in association with green manure application, whereas the average concentration of total N ... ASCE Subject Headings: Hydrology, Irrigation water, Water leakage and water loss, Water discharge

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  • Cotton Response to Variable Nitrogen Rate Fertigation ...

    2019-1-11 · growers to obtain higher yields through applying nutrients through irrigation water. Therefore, many growers apply nutrients through irrigation systems, known as fertigation. Currently, there are no practical decisionmaking tools - available for variable-rate application of nitrogen (N) through overhead sprinkler irrigation systems.

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  • Planting System Effect on Yield Response of Russet ...

    2010-10-7 · Irrigation water use as influenced by interaction between irrigation treatment and nitrogen application rate 2007. Data averaged over three planting systems. For each irrigation treatment, nitrogen treatments with the same letter are not significantly different at the 0.05 probability level based on least square mean confidence intervals.

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  • Interpreting Irrigation Water Tests - Penn State

    2016-5-31 · Prevalence of problems listed in column 3 is based on 409 irrigation water supplies submitted to the Penn State water testing laboratory between 2007 and 2014. Parameter. Level of Concern. % Exceeding Levels in PA. Notes. pH. Below 5.0 or …

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  • Response of Bell Pepper to Subsurface Drip Irrigation and ...

    2009-11-19 · Response of Bell Pepper to Subsurface Drip Irrigation and Surface Drip Irrigation under Different Water and Nitrogen Coupling Conditions Revised manuscript submitted to Qinghua Kong a, Guangyong Li a,*, Yonghong Wang b, Hongxu Huo a a College of Water Conservancy & Civil Engineering China Agricultural University,Beijing 100083, P.R. China

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  • Posts Tagged: nitrogen management - Fumigant and ...

    Details on the Nitrate Quick Test. Background. Testing the soil for nitrate is critical for managing fertilizer in crop production. Soil nitrate levels are continually in flux due to inputs of nitrate from fertilizer, mineralization of soil organic matter and crop residues, and irrigation water, as well as from losses of soil nitrate from leaching, crop uptake and denitrification.

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  • Field trials show the fertilizer value of nitrogen in ...

    2017-4-1 · The 2015 trials clearly demonstrated that irrigation water NO [sub.3]-N was at least as effectively used by the crop as fertilizer N. The regression lines in figures 3 and 4 indicate the crop response to fertigation with AN-20 at the two levels of irrigation; all regressions were highly significant (p < …

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  • Response of tomato to nitrogen fertilization and ...

    The effect of different irrigation frequencies (5, 7 and 9 days interval) and N rates (0, 50, 100 and 150 kg N ha−1) on applied N in tomato was studied in a field experiment during 3 growing seasons. The application of 100 kg N ha−1 with irriga tion scheduled at 7 days interal resulted in significantly higher N uptake and recovery rate than the other combinations of N rate and irrigation ...

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  • Water stress and nitrogen limitation effects on corn

    To examine how drought and nitrogen limitation might affect crop competitive ability with C3 or C4 weeds, a two year experiment was conducted at the research field of Plant Pest and Disease Research Institute, Karaj, in 2002 and 2003. Irrigation interval (every 7d and 14d (moderate drought stress)), …

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  • Pre-Plant Nitrogen Response in Irrigated Corn

    2021-5-4 · nitrogen treatments within the main study for a higher resolu - Pre-Plant Nitrogen Response in Irrigated Corn tion assessment of nitrogen response at the top of the yield curve. Irrigation was applied at 1-inch, 1.25-inch and 1.5-inch application rates such that the 1.25-inch treatment served to

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  • Using the Pre-Sidedressing Soil Nitrate ‘Quick Test’ to ...

    2021-2-24 · Using the pre-sidedressing soil nitrate ‘quick test’ to guide N fertilizer management 2 of 2 Interpretation of results The nitrate test strips are calibrated in parts per million (PPM) NO 3-N. Conversion to PPM NO 3-N in dry soil requires dividing the strip reading by a correction factor based on soil texture and moisture content:

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  • Irrigated Corn Yield Response to Nitrogen and

    Irrigated corn (Zea maysL.) is a relatively new crop on the Southern High Plains where the groundwater supply for irrigation is declining.Field studies were conducted to determine the plant nutrient needs for corn on a predominant soil of the area, the effects of timing and duration of drought stress periods, and the interacting effects of N levels and drought stress on N nutrition and ...

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  • Urea Nitrogen Fertilizer | Liquid Urea Nitrogen | 24

    NResponse. NResponse is our liquid urea nitrogen fertilizer designed for quick response. When nitrogen levels are low and plants need nitrogen at key growth stages, NResponse is the answer. NResponse’s nitrogen is immediately available for plant use and it stimulates leaf growth and promotes photosynthesis throughout the plant’s life.

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  • MAIZE GROWTH, YIELD FORMATION AND WATER

    2016-4-8 · MAIZE GROWTH, YIELD FORMATION AND WATER-NITROGEN USAGE IN RESPONSE TO VARIED IRRIGATION AND NITROGEN SUPPLY UNDER SEMI-ARID CLIMATE Umair ASHRAF1,2, Mazhar Noor SALIM3, Alam SHER4, Sabeeh-ur-Rasool SABIR5, Aqil KHAN4, Shenggang PAN1,2, Xiangru TANG1,2* 1South China Agricultural University, College of Agriculture, Department of Crop …

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  • Test Strips | Hach USA - Overview | Hach

    Irrigation strategy, nitrogen application and fungicide control in winter wheat on a sandy soil. II. Radiation interception and conversion - Volume 134 Issue 1

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  • Irrigation strategy, nitrogen application and

    2021-5-22 · DU Ya-dan, CAO Hong-xia, LIU Shi-quan, GU Xiao-bo, CAO Yu-xin. 2017. Response of yield, quality, water and nitrogen use efficiency of tomato to different levels of water and nitrogen under drip irrigation in Northwestern China. Journal of Integrative Agriculture, 16(05): 1153-1161. URL:

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  • Response of yield, quality, water and nitrogen use ...

    2009-9-26 · Table 10 Nitrogen requirement and Nitrogen harvest index of wheat as influenced by irrigation scheduling and N application the methods under limited water supply Full size table The nitrogen requirement (NR) i.e., kg N uptake to produce 100 kg of wheat grain decreased in 2003–2004 (from 1.61 to 2.03) compared to 2001–2002 (from 1.93 to 2.16 ...

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  • Effect of irrigation and nitrogen application

    2005-7-1 · For quick testing, 5 g of the fresh petioles were macerated and boiled for 15 min in 100 ml of distilled water. After cooling, final volumes of 300 ml were lined up and nitrate concentrations in extracts determined by Reflectoquant test strips, read with the RQflex reflectometer (MERCK). During the 3 years survey, between 10 and 48 days after ...

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  • Using the Pre-Sidedressing Soil Nitrate ‘Quick Test’ to ...

    2021-2-24 · Using the pre-sidedressing soil nitrate ‘quick test’ to guide N fertilizer management 2 of 2 Interpretation of results The nitrate test strips are calibrated in parts per million (PPM) NO 3-N. Conversion to PPM NO 3-N in dry soil requires dividing the strip reading by a correction factor based on soil texture and moisture content:

    Get Price
  • Nutrient Management for Vegetable Production

    2006-11-2 · Presidedress Nitrogen Quick Test Summary of 11 Trials 77 189 Side dress N applied PSNT 135 111 Grower 247 117 ... 4 - Nitrogen in the Irrigation Water ... • Application uniformity reduces nitrogen losses to leaching retention and improves nitrogen

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  • Urea Nitrogen Fertilizer | Liquid Urea Nitrogen | 24 0 0 ...

    NResponse. NResponse is our liquid urea nitrogen fertilizer designed for quick response. When nitrogen levels are low and plants need nitrogen at key growth stages, NResponse is the answer. NResponse’s nitrogen is immediately available for plant use and it stimulates leaf growth and promotes photosynthesis throughout the plant’s life.

    Get Price
  • Response of Rhodes grass to variable rate application

    Response of Rhodes grass to variable rate application of irrigation water and fertilizer nitrogen ... Fingerprint; Abstract. A field experiment was conducted to study the effects of variable rate application (VRA) of irrigation water and fertilizer nitrogen on the yield of Rhodes grass (Chloris gayana Kunth) under two different management zones ...

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  • 360 RAIN | 360 Yield Center

    Two years of test data show a strong yield response to a timely dose of low volumes of water and nutrients. In 2020 replicated side-by-side trials, test strips that received just 4.5 inches of water from 360 RAIN through the growing season generated an additional 65 bushels per acre – a 32% improvement over non-irrigated strips.

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  • Nitrogen Requirements of Drip-irrigated Peppers

    Abstract. The response of bell pepper (Capsicum annuum L.) to five rates of N fertigation between 0 and 336 kg N/ha was studied at two drip-irrigated sites [Univ. of California, Davis (UCD) and West Side Field Station, Five Points (WSFS)] in California in 1992. Nitrogen application, in the form of a urea : ammonium nitrate mixture (UN-32), was

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  • Irrigation strategy, nitrogen application and fungicide ...

    Irrigation also increased mildew incidence. This caused significant interactions for grain yield between fungicide application and nitrogen rate and between fungicide application and irrigation strategy. Septoria was also significantly affected by both nitrogen and irrigation strategies, but to a lesser degree and not in a consistent manner.

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  • Soil and Irrigation Water Test Kit, Model SIW-1 | Hach

    2017-9-19 · compared to no irrigation and no nitrogen application. Maximum grain yield of 4504kg ha-1-and water productivity of 7.99 kg mm 1 ha-1 was recorded in response to the application of 100% SI combined with 92 kg N ha-1, However, the lowest grain yield of 885 kg ha and water productivity

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  • Using the Pre-Sidedressing Soil Nitrate ‘Quick Test’ to ...

    2021-2-24 · Using the pre-sidedressing soil nitrate ‘quick test’ to guide N fertilizer management 2 of 2 Interpretation of results The nitrate test strips are calibrated in parts per million (PPM) NO 3-N. Conversion to PPM NO 3-N in dry soil requires dividing the strip reading by a correction factor based on soil texture and moisture content:

    Get Price
  • 360 RAIN | 360 Yield Center

    Two years of test data show a strong yield response to a timely dose of low volumes of water and nutrients. In 2020 replicated side-by-side trials, test strips that received just 4.5 inches of water from 360 RAIN through the growing season generated an additional 65 bushels per acre – a 32% improvement over non-irrigated strips.

    Get Price
  • Soil solution analysis - dpi.nsw.gov.au

    2012-1-13 · quick and easy way to monitor both soil salinity and nitrate levels. The sample can be analysed on site using an electrical conductivity (EC) meter and nitrate test strips. What is the soil solution? The water that is held in the soil is known as the soil solution. It contains a mix of nutrients. Salts and nitrogen are taken up by the roots ...

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  • Site-specific Nitrogen Management for Irrigated Corn ...

    Nitrogen and Water Quality. Nitrogen can be transported from the soil to surface or ground water as the landscape drains following heavy rain or excessive irrigation. When the rainfall or irrigation rate exceeds the soil infiltration capacity, the result is runoff. Runoff can transport soil N, as well as recently applied landscape fertilizers ...

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  • SL 254/SS479: Nitrogen in the Home Landscape

    Nitrogen is a chemical element with the symbol N, the atomic number of 7, and the atomic mass of 14. It can occur in a diatomic molecular form (N 2) as a colorless gas and be a part of a liquid or solid compound.About 78% of the Earth's atmosphere is composed of a gaseous form of nitrogen making it the most abundant uncombined element.

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  • Nitrogen | Hach | Water Parameter Overview

    In Iowa, the test is referred to as the late spring soil nitrate test (LSNT) (Blackmer et al., 1989; Binford et al., 1992a) because the test was calibrated by application of N fertilizer rates to fields with no manure history. The test requires collection of a soil sample from the surface 30-cm layer of soil when corn is 15- to 30-cm tall and ...

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  • Strengths and Limitations of Nitrogen Rate

    2016-8-17 · New Zealand Piped Irrigation Systems Installation Code of Practice 2013. (b) The irrigation system application depth and uniformity are self-checked annually in accordance with the relevant Irrigation NZ Pre-Season Checklist28 and IRRIG8Quick Irrigation Quick tests29 for any irrigation system operating on the property.

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