Ali, M., Singh, B. and Pathak, R. (2019). Effects of foliar nutrient supplementation on vegetative and reproductive efficiency of pulses. J. Plant Nutr. 42: 1690-703.
Chen, X., Liu, H. and Zhang, L. (2021). Decomposition characteristics and nutrient release pattern of keratin-rich materials in soil. Soil Sci. Plant Nutr. 67: 412–20.
Choudhary, R., Singh, P. and Kiran, R. (2022). Nutrient composition and agronomic potential of keratin-based organic materials. J. Plant Nutr. 45: 3025–37.
Colla, G., Hoagland, L., Ruzzi, M., Cardarelli, M., Bonini, P., Canaguier, R. and Rouphael, Y. (2017). Biostimulant action of protein hydrolysates: unravelling their effects on plant physiology and microbiome. Front. Plant Sci. 8: doi: 10.3389/fpls.2017.02202.
Devi, K., Prasad, P. V. and Rao, M. S. (2018). Influence of organic biostimulants on growth and yield of black gram. Legume Res. 41: 788–794.
Fitriyah, F., Kresnawaty, I. and Santoso, D. (2019). Protein hydrolysate activity on germination and early growth of mung bean (Vigna radiata). Menara Perkebunan 87: 87–94.
Ghareeb, E. A. E.-T., Ismaeil, F. H. M., El‑Nabarawy, A. A. and Eid, R. S. M. (2024). Enhancing growth and yield of sesame plant (Sesamum indicum L.) by foliar application of mixed amino acids. Ann. Agric. Sci. Moshtohor 62: 1-20. doi:10.21608/assjm.2024.308435. 1305.
Hazra, G. (2016). Different types of eco-friendly fertilizers: An overview. Sustain. Environ. 1: 54-70.
Hotta, H. (2024). Chemical analysis of human hair. Anal. Sci. 40: 1217-18.
Ibrahim, M., Devi, K. N. and Kumar, A. (2019). Physiological and biochemical response of millets to foliar applied plant growth enhancers. Plant Arch. 19: 3554–60.
Karthikeyan, K., Subramanian, E. and Paramasivan, M. (2017). Effect of foliar nutrition on growth and yield of small millets. Int. J. Curr. Micro. Appl. Sci. 6: 2450–57.
Kumar, P., Venkatesh, M. S. and Sudhakar, P. (2021). Influence of plant biostimulants on growth, photosynthesis and yield of sesame (Sesamum indicum L.). Legume Res. 44: 321–27.
Kumari, S., Bhuker, A., Mor, V. S., Singh, D. and Raj, P. M. S. (2025). Effect of biostimulant treatments on seed‑quality parameters of pearl millet hybrid HHB 299 and its parental lines. Forage Res. 49: 373–81.
Li, J., Van Gerrewey, T. and Geelen, D. (2022). A meta‑analysis of biostimulant yield effectiveness in field trials. Front. Plant Sci. 13: doi:10.3389/fpls.2022.836702.
Marif, A. A. (2024). Effect of uncomposted human hair, poultry manure and mineral fertilizer on eggplant (Solanum Melongena L.) growth and productivity. J. Kirkuk Univ. Agric. Sci. 15: 68-77.
Meena, R. S., Yadav, G. S. and Rana, D. S. (2020). Effect of foliar feeding of micronutrients on physiological traits and yield of oilseed crops. J. Oilseeds Res. 37: 112–18.
Patel, R. H., Patel, P. T. and Chaudhari, K. G. (2018). Impact of foliar application of nutrients on yield attributes, grain yield and quality of pearl millet (Pennisetum glaucum). Int. J. Chem. Stud. 6: 234–39.
Pérez‑Aguilar, H., Lacruz‑Asaro, M. and Arán‑Ais, F. (2023). Evaluation of biostimulants based on recovered protein hydrolysates from animal by‑products as plant growth enhancers. J. Plant Sci. Phytopatho. 7: 42–47.
Prakash, M., Sathiya Narayanan, G., Anandan, R. and Sunil Kumar, B. (2019). Effect of organic seed treatment and foliar spray on growth, yield and resultant seed quality in sesame (Sesamum indicum L.). J. Oilseeds Res. 36: 30-35.
Ramesh, S., Jeberson, J. J., Sudhakar, P., Manimaran, S., Kalaiyarasan, C. and Baradhan, G. (2025). Effect of foliar nutrition on growth analysis, productivity and profitability of irrigated sesame in Cauvery delta zone of Tamil Nadu. Int. J. Res. Agron. 8: 902–905.
Reddy, B. N., Rao, K. V. and Naik, R. M. (2019). Foliar nutrition effects on growth and yield of sesame under rainfed conditions. J. Pharmacog. Phytochem. 8: 2006–2009.
Robbins, C. R. (2012). Chemical and physical behaviour of human hair. Springer Science and Business Media, New York. doi:10.1007/978-3-642-25611-0.
Seervi, D., Singh, K. S. and Choyal, P. (2018). The effect of micronutrients applied as foliar spray on morphological and physiological growth of sesame (Sesamum indicum L.). Int. J. Chem. Stud. 6: 986–89.
Sharma, P., Singh, I., Behl, R. K., Tiwari, N. K. and Pooja. (2024). Response of green gram (Vigna radiata L.) to various biostimulants. Int. J. Res. Agron. 7: 501-05.
Sharma, P., Singh, R. and Chauhan, T. (2020). Role of organic nitrogen sources and foliar nutrition in improving crop growth and productivity. J. Plant Nutr. 43: 1850–62.
Singh, B. and Roy, S. (2022). Response of sesame to foliar feeding of organic and inorganic nutrients in semi-arid tropics. Indian J. Agric. Res. 56: 78-84.
Singh, R. P., Kumar, S., Sainger, M., Sainger, P. A. and Barnawal, D. (2017). Eco-friendly nitrogen fertilizers for sustainable agriculture. In: Adaptive soil management: From theory to practices. Singapore: Springer Singapore. pp. 227-46.
Singh, S. D., Patil, S. S., Jadhav, D. B., Birunagi, S. M., Karmakar, K., Saini, N. and Hari, A. (2025). Response of soil applied urea and foliar applied nano urea on the growth, yield and quality of Kharif sesame (Sesamum indicum) under the central plain agro-climatic zone of Punjab. Agric. Sci. Digest 2025: 1-6.
Sun, W., Shahrajabian, M. H., Kuang, Y. and Wang, N. (2024). Amino acids biostimulants and protein hydrolysates in agricultural sciences. Plants 13: doi:10.3390/plants13020210.
Yetilmezsoy, K., Ilhan, F. and Kıyan, E. (2025). Utilization of non-composted human hair hydrolysate as a natural and nutrient-rich liquid fertilizer for sustainable agro-applications and bio-waste management. Sustainability 17: 1641. doi:10.3390/su17041641.
Zheljazkov, V. D., Stratton, G. W. and Stojanovic, J. (2008). Composting and use of hair waste as a nitrogen source. Waste Manag. 28: 1317–23.
Chen, X., Liu, H. and Zhang, L. (2021). Decomposition characteristics and nutrient release pattern of keratin-rich materials in soil. Soil Sci. Plant Nutr. 67: 412–20.
Choudhary, R., Singh, P. and Kiran, R. (2022). Nutrient composition and agronomic potential of keratin-based organic materials. J. Plant Nutr. 45: 3025–37.
Colla, G., Hoagland, L., Ruzzi, M., Cardarelli, M., Bonini, P., Canaguier, R. and Rouphael, Y. (2017). Biostimulant action of protein hydrolysates: unravelling their effects on plant physiology and microbiome. Front. Plant Sci. 8: doi: 10.3389/fpls.2017.02202.
Devi, K., Prasad, P. V. and Rao, M. S. (2018). Influence of organic biostimulants on growth and yield of black gram. Legume Res. 41: 788–794.
Fitriyah, F., Kresnawaty, I. and Santoso, D. (2019). Protein hydrolysate activity on germination and early growth of mung bean (Vigna radiata). Menara Perkebunan 87: 87–94.
Ghareeb, E. A. E.-T., Ismaeil, F. H. M., El‑Nabarawy, A. A. and Eid, R. S. M. (2024). Enhancing growth and yield of sesame plant (Sesamum indicum L.) by foliar application of mixed amino acids. Ann. Agric. Sci. Moshtohor 62: 1-20. doi:10.21608/assjm.2024.308435. 1305.
Hazra, G. (2016). Different types of eco-friendly fertilizers: An overview. Sustain. Environ. 1: 54-70.
Hotta, H. (2024). Chemical analysis of human hair. Anal. Sci. 40: 1217-18.
Ibrahim, M., Devi, K. N. and Kumar, A. (2019). Physiological and biochemical response of millets to foliar applied plant growth enhancers. Plant Arch. 19: 3554–60.
Karthikeyan, K., Subramanian, E. and Paramasivan, M. (2017). Effect of foliar nutrition on growth and yield of small millets. Int. J. Curr. Micro. Appl. Sci. 6: 2450–57.
Kumar, P., Venkatesh, M. S. and Sudhakar, P. (2021). Influence of plant biostimulants on growth, photosynthesis and yield of sesame (Sesamum indicum L.). Legume Res. 44: 321–27.
Kumari, S., Bhuker, A., Mor, V. S., Singh, D. and Raj, P. M. S. (2025). Effect of biostimulant treatments on seed‑quality parameters of pearl millet hybrid HHB 299 and its parental lines. Forage Res. 49: 373–81.
Li, J., Van Gerrewey, T. and Geelen, D. (2022). A meta‑analysis of biostimulant yield effectiveness in field trials. Front. Plant Sci. 13: doi:10.3389/fpls.2022.836702.
Marif, A. A. (2024). Effect of uncomposted human hair, poultry manure and mineral fertilizer on eggplant (Solanum Melongena L.) growth and productivity. J. Kirkuk Univ. Agric. Sci. 15: 68-77.
Meena, R. S., Yadav, G. S. and Rana, D. S. (2020). Effect of foliar feeding of micronutrients on physiological traits and yield of oilseed crops. J. Oilseeds Res. 37: 112–18.
Patel, R. H., Patel, P. T. and Chaudhari, K. G. (2018). Impact of foliar application of nutrients on yield attributes, grain yield and quality of pearl millet (Pennisetum glaucum). Int. J. Chem. Stud. 6: 234–39.
Pérez‑Aguilar, H., Lacruz‑Asaro, M. and Arán‑Ais, F. (2023). Evaluation of biostimulants based on recovered protein hydrolysates from animal by‑products as plant growth enhancers. J. Plant Sci. Phytopatho. 7: 42–47.
Prakash, M., Sathiya Narayanan, G., Anandan, R. and Sunil Kumar, B. (2019). Effect of organic seed treatment and foliar spray on growth, yield and resultant seed quality in sesame (Sesamum indicum L.). J. Oilseeds Res. 36: 30-35.
Ramesh, S., Jeberson, J. J., Sudhakar, P., Manimaran, S., Kalaiyarasan, C. and Baradhan, G. (2025). Effect of foliar nutrition on growth analysis, productivity and profitability of irrigated sesame in Cauvery delta zone of Tamil Nadu. Int. J. Res. Agron. 8: 902–905.
Reddy, B. N., Rao, K. V. and Naik, R. M. (2019). Foliar nutrition effects on growth and yield of sesame under rainfed conditions. J. Pharmacog. Phytochem. 8: 2006–2009.
Robbins, C. R. (2012). Chemical and physical behaviour of human hair. Springer Science and Business Media, New York. doi:10.1007/978-3-642-25611-0.
Seervi, D., Singh, K. S. and Choyal, P. (2018). The effect of micronutrients applied as foliar spray on morphological and physiological growth of sesame (Sesamum indicum L.). Int. J. Chem. Stud. 6: 986–89.
Sharma, P., Singh, I., Behl, R. K., Tiwari, N. K. and Pooja. (2024). Response of green gram (Vigna radiata L.) to various biostimulants. Int. J. Res. Agron. 7: 501-05.
Sharma, P., Singh, R. and Chauhan, T. (2020). Role of organic nitrogen sources and foliar nutrition in improving crop growth and productivity. J. Plant Nutr. 43: 1850–62.
Singh, B. and Roy, S. (2022). Response of sesame to foliar feeding of organic and inorganic nutrients in semi-arid tropics. Indian J. Agric. Res. 56: 78-84.
Singh, R. P., Kumar, S., Sainger, M., Sainger, P. A. and Barnawal, D. (2017). Eco-friendly nitrogen fertilizers for sustainable agriculture. In: Adaptive soil management: From theory to practices. Singapore: Springer Singapore. pp. 227-46.
Singh, S. D., Patil, S. S., Jadhav, D. B., Birunagi, S. M., Karmakar, K., Saini, N. and Hari, A. (2025). Response of soil applied urea and foliar applied nano urea on the growth, yield and quality of Kharif sesame (Sesamum indicum) under the central plain agro-climatic zone of Punjab. Agric. Sci. Digest 2025: 1-6.
Sun, W., Shahrajabian, M. H., Kuang, Y. and Wang, N. (2024). Amino acids biostimulants and protein hydrolysates in agricultural sciences. Plants 13: doi:10.3390/plants13020210.
Yetilmezsoy, K., Ilhan, F. and Kıyan, E. (2025). Utilization of non-composted human hair hydrolysate as a natural and nutrient-rich liquid fertilizer for sustainable agro-applications and bio-waste management. Sustainability 17: 1641. doi:10.3390/su17041641.
Zheljazkov, V. D., Stratton, G. W. and Stojanovic, J. (2008). Composting and use of hair waste as a nitrogen source. Waste Manag. 28: 1317–23.
