TY  - JOUR
AU  - Krga, Ivan
AU  - Simić, Aleksandar
AU  - Dželetović, Željko
AU  - Babić, Snežana
AU  - Katanski, Snežana
AU  - Nikolić, Svetlana Roljević
AU  - Damnjanović, Jelena
PY  - 2021
UR  - https://www.mdpi.com/2077-0472/11/9/871
UR  - http://RIVeC.institut-palanka.rs/handle/123456789/393
AB  - In limited growing conditions, intercropped field peas and oats can represent a significant source of forage rich in protein. If applied correctly, factors such as nitrogen fertilizer, the mowing phase, and sowing norms can significantly increase the productivity of these mixtures. Field trials were conducted to examine their productivity under different nitrogen levels (0, 40, 80 kg ha−1), different sowing norms/mixtures (field peas: oats—100:15%; 100:30%), and two stages of growth (full flowering, full pod formation). Nitrogen fertilizer and different sowing norms had a significant effect on the biomass, hay, and crude protein yields. On average, the highest hay yields were achieved with 80 kg ha−1 N (4.96 t ha−1), followed by 40 kg ha−1 N (4.27 t ha−1). The highest protein yields were achieved with 40 kg ha−1 N (CP—704.1 kg ha−1), followed by 80 kg ha−1 N (CP—637.6 kg ha−1). Sowing norm 100:30% achieved higher hay yields: 100:30%—4.82 t ha−1; 100:15%—4.44 t ha−1, while 100:15% achieved higher crude protein yields: 100:15%—730.4 kg ha−1; 100:30%—692.7 kg ha−1 on average. The costs were not significantly increased with the nitrogen fertilizer, but the net profits were increased by as much as 163%, depending on the nitrogen level and the mixture. Nitrogen fertilizer also achieves higher economic efficiency for the mixture 100:15% compared to the 100:30% mixture. Mixtures of field peas and oats outperform single-grown crops and provide cost-effective feed for a short time. Using optimal seed ratios and nitrogen fertilizer can significantly increase the productivity and profitability of the feed with minimal impact on the overall production costs.
PB  - MDPI (Multidisciplinary Digital Publishing Institute)
T2  - Agriculture
T2  - Agriculture
T1  - Biomass and Protein Yields of Field Peas and Oats Intercrop Affected by Sowing Norms and Nitrogen Fertilizer at Two Different Stages of Growth
IS  - 9
SP  - 871
VL  - 11
DO  - 10.3390/agriculture11090871
ER  - 

@article{
author = "Krga, Ivan and Simić, Aleksandar and Dželetović, Željko and Babić, Snežana and Katanski, Snežana and Nikolić, Svetlana Roljević and Damnjanović, Jelena",
year = "2021",
abstract = "In limited growing conditions, intercropped field peas and oats can represent a significant source of forage rich in protein. If applied correctly, factors such as nitrogen fertilizer, the mowing phase, and sowing norms can significantly increase the productivity of these mixtures. Field trials were conducted to examine their productivity under different nitrogen levels (0, 40, 80 kg ha−1), different sowing norms/mixtures (field peas: oats—100:15%; 100:30%), and two stages of growth (full flowering, full pod formation). Nitrogen fertilizer and different sowing norms had a significant effect on the biomass, hay, and crude protein yields. On average, the highest hay yields were achieved with 80 kg ha−1 N (4.96 t ha−1), followed by 40 kg ha−1 N (4.27 t ha−1). The highest protein yields were achieved with 40 kg ha−1 N (CP—704.1 kg ha−1), followed by 80 kg ha−1 N (CP—637.6 kg ha−1). Sowing norm 100:30% achieved higher hay yields: 100:30%—4.82 t ha−1; 100:15%—4.44 t ha−1, while 100:15% achieved higher crude protein yields: 100:15%—730.4 kg ha−1; 100:30%—692.7 kg ha−1 on average. The costs were not significantly increased with the nitrogen fertilizer, but the net profits were increased by as much as 163%, depending on the nitrogen level and the mixture. Nitrogen fertilizer also achieves higher economic efficiency for the mixture 100:15% compared to the 100:30% mixture. Mixtures of field peas and oats outperform single-grown crops and provide cost-effective feed for a short time. Using optimal seed ratios and nitrogen fertilizer can significantly increase the productivity and profitability of the feed with minimal impact on the overall production costs.",
publisher = "MDPI (Multidisciplinary Digital Publishing Institute)",
journal = "Agriculture, Agriculture",
title = "Biomass and Protein Yields of Field Peas and Oats Intercrop Affected by Sowing Norms and Nitrogen Fertilizer at Two Different Stages of Growth",
number = "9",
pages = "871",
volume = "11",
doi = "10.3390/agriculture11090871"
}

Krga, I., Simić, A., Dželetović, Ž., Babić, S., Katanski, S., Nikolić, S. R.,& Damnjanović, J.. (2021). Biomass and Protein Yields of Field Peas and Oats Intercrop Affected by Sowing Norms and Nitrogen Fertilizer at Two Different Stages of Growth. in Agriculture
MDPI (Multidisciplinary Digital Publishing Institute)., 11(9), 871.
https://doi.org/10.3390/agriculture11090871

Krga I, Simić A, Dželetović Ž, Babić S, Katanski S, Nikolić SR, Damnjanović J. Biomass and Protein Yields of Field Peas and Oats Intercrop Affected by Sowing Norms and Nitrogen Fertilizer at Two Different Stages of Growth. in Agriculture. 2021;11(9):871.
doi:10.3390/agriculture11090871 .

Krga, Ivan, Simić, Aleksandar, Dželetović, Željko, Babić, Snežana, Katanski, Snežana, Nikolić, Svetlana Roljević, Damnjanović, Jelena, "Biomass and Protein Yields of Field Peas and Oats Intercrop Affected by Sowing Norms and Nitrogen Fertilizer at Two Different Stages of Growth" in Agriculture, 11, no. 9 (2021):871,
https://doi.org/10.3390/agriculture11090871 . .

TY  - JOUR
AU  - Krga, Ivan
AU  - Simić, Aleksandar
AU  - Mandić, Violeta
AU  - Bijelić, Zorica
AU  - Dželetović, Željko
AU  - Vasiljević, Sanja
AU  - Adžić, Slađan
PY  - 2019
UR  - http://RIVeC.institut-palanka.rs/handle/123456789/209
AB  - Monoculture and intensive use of mechanization and inorganic chemicals are leading to degradation and erosion of our soils and agro-ecosystems. At the same time, the production of animal feeds that are rich in protein is constantly decreasing in many European countries. Modest cultivation needs, favorable content of nutrients, and beneficial effect on the environment, make field pea and oat mixtures promising crops to tackle these issues. In three growing seasons and without irrigation or fertilisation, we have examined two basic field pea cultivars (Kosmaj, OS Adam) and one leafless cultivar (OS Letin) intercropped with oat (NS Jadar), with seeding rates, field pea: oat - 100:10%; 100:20% Results have shown that basic type cultivars have better overall development and higher yields compared to leafless cultivar, whether grown as single crops or in the mixture. Basic cultivars (OS Adam, Kosmaj) achieved higher protein content, compared to cultivar Letin, 163.9 g kg(-1), 153.3 g kg(-1), 136 g kg(-1), respectively. Yields were higher in 100:20% mixtures, compared to 100:10% mixtures and single grown crops, and we conclude that intercropping these species is superior to cultivating them separately. Protein content wasn't significantly different between two seeding rates, thus seed rates shouldn't be lower than 100:20%.
PB  - Soc Field Crop Sci, Bornova
T2  - Turkish Journal of Field Crops
T1  - Forage yield and protein content of different field pea cultivars and oat mixtures grown as winter crops
EP  - 177
IS  - 2
SP  - 170
VL  - 24
DO  - 10.17557/tjfc.643524
ER  - 

@article{
author = "Krga, Ivan and Simić, Aleksandar and Mandić, Violeta and Bijelić, Zorica and Dželetović, Željko and Vasiljević, Sanja and Adžić, Slađan",
year = "2019",
abstract = "Monoculture and intensive use of mechanization and inorganic chemicals are leading to degradation and erosion of our soils and agro-ecosystems. At the same time, the production of animal feeds that are rich in protein is constantly decreasing in many European countries. Modest cultivation needs, favorable content of nutrients, and beneficial effect on the environment, make field pea and oat mixtures promising crops to tackle these issues. In three growing seasons and without irrigation or fertilisation, we have examined two basic field pea cultivars (Kosmaj, OS Adam) and one leafless cultivar (OS Letin) intercropped with oat (NS Jadar), with seeding rates, field pea: oat - 100:10%; 100:20% Results have shown that basic type cultivars have better overall development and higher yields compared to leafless cultivar, whether grown as single crops or in the mixture. Basic cultivars (OS Adam, Kosmaj) achieved higher protein content, compared to cultivar Letin, 163.9 g kg(-1), 153.3 g kg(-1), 136 g kg(-1), respectively. Yields were higher in 100:20% mixtures, compared to 100:10% mixtures and single grown crops, and we conclude that intercropping these species is superior to cultivating them separately. Protein content wasn't significantly different between two seeding rates, thus seed rates shouldn't be lower than 100:20%.",
publisher = "Soc Field Crop Sci, Bornova",
journal = "Turkish Journal of Field Crops",
title = "Forage yield and protein content of different field pea cultivars and oat mixtures grown as winter crops",
pages = "177-170",
number = "2",
volume = "24",
doi = "10.17557/tjfc.643524"
}

Krga, I., Simić, A., Mandić, V., Bijelić, Z., Dželetović, Ž., Vasiljević, S.,& Adžić, S.. (2019). Forage yield and protein content of different field pea cultivars and oat mixtures grown as winter crops. in Turkish Journal of Field Crops
Soc Field Crop Sci, Bornova., 24(2), 170-177.
https://doi.org/10.17557/tjfc.643524

Krga I, Simić A, Mandić V, Bijelić Z, Dželetović Ž, Vasiljević S, Adžić S. Forage yield and protein content of different field pea cultivars and oat mixtures grown as winter crops. in Turkish Journal of Field Crops. 2019;24(2):170-177.
doi:10.17557/tjfc.643524 .

Krga, Ivan, Simić, Aleksandar, Mandić, Violeta, Bijelić, Zorica, Dželetović, Željko, Vasiljević, Sanja, Adžić, Slađan, "Forage yield and protein content of different field pea cultivars and oat mixtures grown as winter crops" in Turkish Journal of Field Crops, 24, no. 2 (2019):170-177,
https://doi.org/10.17557/tjfc.643524 . .