Effect of Different Irrigation Programs with Nitrogen Fertilizer Application on Nitrogen Use Efficiency and Fruit Quality in Tomato

Karaman, Mehmet; Güleç, Hikmet; Erşahin, Sabit

doi:10.1007/978-94-017-2685-6_7

Cited by 4 publications

(3 citation statements)

References 5 publications

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“…In general, N uptake decreased as class A-pan coefficients increased possibly due to increasing NO 3 -N leaching losses (Karaman et al, 1999). Although the fruit yields did not show a clear trend with irrigation, the highest yield was obtained at the lowest level of irrigation.…”

Section: Yield and N Uptakementioning

confidence: 87%

“…Soil water potentials in the rooting zone were not monitored in this experiment. However, the class A-pan coefficients of 0.75−1.00 appears to be sufficient for tomato production under the climatological conditions of the Tokat region (Güleç et al, 1997;Karaman et al, 1999). Total N uptake, however, was also highest under the C 1.00 irrigation program in first year, whereas the highest total N uptake was obtained under the C 1.25 irrigation program in second year, possibly due to the production of maximum amount of biomass under this program (Güleç et al, 1997;Karaman et al, 1999).…”

Section: Yield and N Uptakementioning

confidence: 99%

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Characterizing Coral Condition Using Estimates of Three-Dimensional Colony Surface Area

Karaman

Saltali

Erşahin

et al. 2006

Environ Monit Assess

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Readily available nitrogen (N) sources such as ammonium nitrate with excessive irrigation present a potential hazard for the environment. The computer program Nitrate Leaching and Economic Analysis Package (NLEAP) is a mechanistic model developed for rapid site-specific estimates of nitrate-nitrogen (NO 3 -N) moving below the root zone in agricultural crops and potantial impacts of NO 3 -N leaching into groundwater. In this study, the value of NLEAP was tested to simulate N uptake by crops and NO 3 -N leaching parameters in large lysimeters under the tomato crop. Three seedlings of tomato variety of H-2274 (Lycopersicum esculentum L.) were transplanted into each lysimeter. N fertilizer at the rate of 140 kg N ha −1 was sidedressed in two split applications, the first half as ammonium sulphate and the second half as ammonium nitrate. The lysimeters were irrigated based on programs of C 0.75, 1.00, 1.25 and 1.50, C referring to class A-Pan evaporation coefficients. Parameters such as leaching index (LI), annual leaching risk potential (ALRP), N available for leaching (NAL), amount of NO 3 -N leached (NL) and amount of N taken up by the crops (NU) were estimated using the NLEAP computer model. To test the ability of model to simulate N uptake and NL, measured values were compared with simulated values. Significant correlations, R 2 = 0.92 and P < 0.03 for the first year and R 2 = 0.86 and P < 0.06 for the second year, were found between measured and simulated values for crop N consumption, indicating that the NLEAP model adequately described crop N uptake under the varied irrigation programs using an optimal N fertilization program for the experimental site. Significant correlations, R 2 = 0.96 and P < 0.01 for the first year and R 2 = 0.97 and P < 0.01 for the second year, were also found between measured and simulated values of NL, indicating that the NLEAP model also adequately predicted NL under the varied irrigation programs. Therefore, this computer model can be useful to estimate the NO 3 -N moving beyond the root zone under conditions in which the present experiment was carried out. Also, the NLEAP-estimated NAL values and other parameters can also be used to improve N management practices and N fertilizer recommendations that will help to decrease the adverse effect of N fertilizer on groundwater quality and farm profitability.

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Section: Yield and N Uptakementioning

confidence: 87%

Section: Yield and N Uptakementioning

confidence: 99%

Characterizing Coral Condition Using Estimates of Three-Dimensional Colony Surface Area

Karaman

Saltali

Erşahin

et al. 2006

Environ Monit Assess

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“…Modifying soil water-holding capacity with organic or inorganic soil amendments involves applications of large amounts of soil amendments, which would increase production costs (Banedjschafie et al, 2006;Ouchi et al, 1990;Sainju et al, 2002;Sivapalan, 2006;Zhang et al, 2003). Other efforts to increase fertilizer use efficiency have focused on modifying fertilizer rates (Zotarelli et al, 2008), fertilizer placement (Cook and Sanders, 1990), using slow-release fertilizers (Fan and Li, 2009;Guertal 2009;Koivunen and Horwath, 2005;Morgan et al, 2009), planting cover crops (Wang et al, 2005), and/or reducing, splitting, or adjusting IRRs and/or frequency (Badr and El-Yazied, 2007;Elmaloglou and Diamantopoulos, 2008;Karaman et al, 1999;Levin et al, 1979;Poh et al, 2009).…”

mentioning

confidence: 99%

Use of Reduced Irrigation Operating Pressure in Irrigation Scheduling. I. Effect of Operating Pressure, Irrigation Rate, and Nitrogen Rate on Drip-irrigated Fresh-market Tomato Nutritional Status and Yields: Implications on Irrigation and Fertilization Management

Poh

Gazula²,

Simonne

et al. 2011

hortte

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Increasing the length of irrigation time by reducing the operating pressure (OP) of drip irrigation systems may result in decreased deep percolation and may allow for reduced nitrogen (N) fertilizer application rates, thereby minimizing the environmental impact of tomato (Solanum lycopersicum) production. The objectives of this study were to determine the effects of irrigation OP (6 and 12 psi), N fertilizer rate (100%, 80%, and 60% of the recommended 200 lb/acre N), and irrigation rates [IRRs (100% and 75% of the target 1000–4000 gal/acre per day)] on fresh-market tomato plant nutritional status and yields. Nitrate (NO3−)–N concentration in petiole sap of ‘Florida 47’ tomatoes grown in Spring 2008 and 2009 in a raised-bed plasticulture system was not significantly affected by treatments in both years and were within the sufficiency ranges at first-flower, 2-inch-diameter fruit, and first-harvest growth stages (420–1150, 450–770, and 260–450 mg·L−1, respectively). In 2008, marketable yields were greater at 6 psi than at 12 psi OP [753 vs. 598 25-lb cartons/acre (P < 0.01)] with no significant difference among N rate treatments. But in 2009, marketable yields were greater at 12 psi [1703 vs. 1563 25-lb cartons/acre at 6 psi (P = 0.05)] and 100% N rate [1761 vs. 1586 25-lb cartons/acre at 60% N rate (P = 0.04)]. Irrigation rate did not have any significant effect (P = 0.59) on tomato marketable yields in either year with no interaction between IRR and N rate or OP treatments. Hence, growing tomatoes at 12 psi OP, 100% of recommended N rate, and 75% of recommended IRR provided the highest marketable yields with least inputs in a drip-irrigated plasticulture system. In addition, these results suggest that smaller amounts of irrigation water and fertilizers (75% and 60% of the recommended IRR and N rate, respectively) could be applied when using a reduced irrigation OP of 6 psi for the early part of the tomato crop season. In the later part of the season, as water demand increased, the standard OP of 12 psi could be used. Changing the irrigation OP offers the grower some flexibility to alter the flow rates to suit the water demands of various growth stages of the crop. Furthermore, it allows irrigation to be applied over an extended period of time, which could better meet the crop's needs for water throughout the day. Such an irrigation strategy could improve water and nutrient use efficiencies and reduce the risks of nutrient leaching. The results also suggest that OP (and flow rate) should be included in production recommendations for drip-irrigated tomato.

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Advantages of compost tea: Promotion of nitrogen influx into the fruit and improvement of fruit nitrogen metabolism in tomato

Li,

Liu,

Chai

et al. 2024

Plant Physiology and Biochemistry

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Effect of Different Irrigation Programs with Nitrogen Fertilizer Application on Nitrogen Use Efficiency and Fruit Quality in Tomato

Cited by 4 publications

References 5 publications

Characterizing Coral Condition Using Estimates of Three-Dimensional Colony Surface Area

Characterizing Coral Condition Using Estimates of Three-Dimensional Colony Surface Area

Use of Reduced Irrigation Operating Pressure in Irrigation Scheduling. I. Effect of Operating Pressure, Irrigation Rate, and Nitrogen Rate on Drip-irrigated Fresh-market Tomato Nutritional Status and Yields: Implications on Irrigation and Fertilization Management

Advantages of compost tea: Promotion of nitrogen influx into the fruit and improvement of fruit nitrogen metabolism in tomato

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