Leek growth and productivity in response to light interception and nitrogen nutrition
Само за регистроване кориснике
2004
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
The aim of this project was to investigate the effect of nitrogen supply and light interception on productivity and growth,of leek (Allium porrum L.). A field experiment, with leek hybrid Alita (Royal Sluis, The Netherlands), was carried out with different levels of nitrogen fertilization. Nitrogen was applied as urea at a rate of 250 kg N/ha at different times: a) the whole amount applied just before transplanting (250+0), or twenty days after transplanting plants (0+250). and b) in split application (125+125), where half of the total amount was applied just before transplanting and the other half twenty days after transplanting plants. Plant analysis was based on the determination of the following crop growth, productivity and light interception parameters: dry matter production (W), leaf area index (LAI), light interception (1), cumulative light interception (CI), light use efficiency (LUE) and relative growth rate (RGR). Crop nitrogen crop status was determined as total nitrogen an...d critical nitrogen concentration in dry matter (Nt; Ne), nitrogen demand (ND) and nitrogen uptake (Nu). Results showed that N fertilizer increasing effect on all investigated parameters, but the effect was dependent on the applied dose of fertilizer. The biggest effect was measured with 125+125 kg N/ha splitted dose. Based on the obtained results and the relationships between light interception, dry weight and LAI, a model of growth and productivity of leek in field conditions was constructed. The main advantage of this model is that it allows monitoring of leek growth and productivity, N status and nitrogen demand during ontogeny using simple and nondestructive measurements.
Кључне речи:
Allium porrum L. / N-fertilizer / cumulative light interception / light use efficiency / leaf area index / nitrogen uptake / productivityИзвор:
Proceedings of the International Workshop on Models for Plant Growth and Control of Product Quality, 2004, 654, 243-249Издавач:
- Int Soc Horticultural Science, Leuven 1
DOI: 10.17660/ActaHortic.2004.654.27
ISSN: 0567-7572
WoS: 000225587600027
Scopus: 2-s2.0-84873422301
Институција/група
Poljoprivredni fakultetTY - CONF AU - Savić, D AU - Stikić, Radmila AU - Jovanović, Zorica PY - 2004 UR - http://aspace.agrif.bg.ac.rs/handle/123456789/869 AB - The aim of this project was to investigate the effect of nitrogen supply and light interception on productivity and growth,of leek (Allium porrum L.). A field experiment, with leek hybrid Alita (Royal Sluis, The Netherlands), was carried out with different levels of nitrogen fertilization. Nitrogen was applied as urea at a rate of 250 kg N/ha at different times: a) the whole amount applied just before transplanting (250+0), or twenty days after transplanting plants (0+250). and b) in split application (125+125), where half of the total amount was applied just before transplanting and the other half twenty days after transplanting plants. Plant analysis was based on the determination of the following crop growth, productivity and light interception parameters: dry matter production (W), leaf area index (LAI), light interception (1), cumulative light interception (CI), light use efficiency (LUE) and relative growth rate (RGR). Crop nitrogen crop status was determined as total nitrogen and critical nitrogen concentration in dry matter (Nt; Ne), nitrogen demand (ND) and nitrogen uptake (Nu). Results showed that N fertilizer increasing effect on all investigated parameters, but the effect was dependent on the applied dose of fertilizer. The biggest effect was measured with 125+125 kg N/ha splitted dose. Based on the obtained results and the relationships between light interception, dry weight and LAI, a model of growth and productivity of leek in field conditions was constructed. The main advantage of this model is that it allows monitoring of leek growth and productivity, N status and nitrogen demand during ontogeny using simple and nondestructive measurements. PB - Int Soc Horticultural Science, Leuven 1 C3 - Proceedings of the International Workshop on Models for Plant Growth and Control of Product Quality T1 - Leek growth and productivity in response to light interception and nitrogen nutrition EP - 249 IS - 654 SP - 243 DO - 10.17660/ActaHortic.2004.654.27 ER -
@conference{ author = "Savić, D and Stikić, Radmila and Jovanović, Zorica", year = "2004", abstract = "The aim of this project was to investigate the effect of nitrogen supply and light interception on productivity and growth,of leek (Allium porrum L.). A field experiment, with leek hybrid Alita (Royal Sluis, The Netherlands), was carried out with different levels of nitrogen fertilization. Nitrogen was applied as urea at a rate of 250 kg N/ha at different times: a) the whole amount applied just before transplanting (250+0), or twenty days after transplanting plants (0+250). and b) in split application (125+125), where half of the total amount was applied just before transplanting and the other half twenty days after transplanting plants. Plant analysis was based on the determination of the following crop growth, productivity and light interception parameters: dry matter production (W), leaf area index (LAI), light interception (1), cumulative light interception (CI), light use efficiency (LUE) and relative growth rate (RGR). Crop nitrogen crop status was determined as total nitrogen and critical nitrogen concentration in dry matter (Nt; Ne), nitrogen demand (ND) and nitrogen uptake (Nu). Results showed that N fertilizer increasing effect on all investigated parameters, but the effect was dependent on the applied dose of fertilizer. The biggest effect was measured with 125+125 kg N/ha splitted dose. Based on the obtained results and the relationships between light interception, dry weight and LAI, a model of growth and productivity of leek in field conditions was constructed. The main advantage of this model is that it allows monitoring of leek growth and productivity, N status and nitrogen demand during ontogeny using simple and nondestructive measurements.", publisher = "Int Soc Horticultural Science, Leuven 1", journal = "Proceedings of the International Workshop on Models for Plant Growth and Control of Product Quality", title = "Leek growth and productivity in response to light interception and nitrogen nutrition", pages = "249-243", number = "654", doi = "10.17660/ActaHortic.2004.654.27" }
Savić, D., Stikić, R.,& Jovanović, Z.. (2004). Leek growth and productivity in response to light interception and nitrogen nutrition. in Proceedings of the International Workshop on Models for Plant Growth and Control of Product Quality Int Soc Horticultural Science, Leuven 1.(654), 243-249. https://doi.org/10.17660/ActaHortic.2004.654.27
Savić D, Stikić R, Jovanović Z. Leek growth and productivity in response to light interception and nitrogen nutrition. in Proceedings of the International Workshop on Models for Plant Growth and Control of Product Quality. 2004;(654):243-249. doi:10.17660/ActaHortic.2004.654.27 .
Savić, D, Stikić, Radmila, Jovanović, Zorica, "Leek growth and productivity in response to light interception and nitrogen nutrition" in Proceedings of the International Workshop on Models for Plant Growth and Control of Product Quality, no. 654 (2004):243-249, https://doi.org/10.17660/ActaHortic.2004.654.27 . .