Abbaszadeh, B., Sefidkon, F., Haghighi, M. L. and Hajiabadi, E. K. (2014). The Effect of planting time and planting density on yield and essential oil of Satureja sahendica Bornm. Int. J. Med. Plants By-Prod. 2: 141-46.
Adler, P. B., Smull, D., Beard, K. H., Choi, R. T., Furniss, T., Kulmatiski, A., Meiners, J. M., Tredennick, A. T. and Veblen, K. E. (2018). Competition and coexistence in plant communities: intraspecific competition is stronger than interspecific competition. Ecol. Lett. 21: 1319-29.
Amaducci, S., Scordia, D., Liu, F. H., Zhang, Q., Guo, H., Testa, G. and Cosentino, S. L. (2015). Key cultivation techniques for hemp in Europe and China. Ind. Crops Prod. 68: 2-16.
Beyenesh, Z., Mereseit, H. and Niguse, A. (2017). Effect of inter and intra-row spacing on yield and yield components of lettuce (Lactuca Sativa) in South East Tigray, Ethiopia. Biomed. J. Sci. Tech. Res. 1: 1698-709.
Dang Thi Cuong., Pham Thanh Tung., Do Thuy Khanh Linh., Nguyen Dang My Duyen. and Nguyen Tan Dzung. (2020). Study of production technology for pennywort powder product by cold-drying method. J. Tech. Edu. Sci. 60: 7-17.
Du, X., Wang, Z., Lei, W. and Kong, L. (2021). Increased planting density combined with reduced nitrogen rate to achieve high yield in maize. Sci. Rep. 11:doi:10.1038/s41598-020-79633-z.
Fang, A., Li, Y., Nie, J., Wang, C., Huang, K., Zhang, Y., She, H., Liu, X. and Ruan, R. (2018). Effects of nitrogen fertilizer and planting density on the leaf photosynthetic characteristics, agronomic traits and grain yield in common buckwheat (Fagopyrum esculentum M.). Field Crops Res. 219: 160-68.
Gong, X., Dang, K., Lv, S., Zhao, G., Tian, L., Luo, Y. and Feng, B. (2020). Interspecific root interactions and water-use efficiency of intercropped proso millet and mung bean. Eur. J. Agron. 115: doi:10.1016/j.eja.2020.126034.
Hai Thi Hong Truong., Nhi Thi Hoang Ho., Han Ngoc Ho., Bao Le Quy Nguyen., Minh Hoang Duy Le. and Thuy Thanh Duong. (2024). Morphological, phytochemical and genetic characterization of Centella asiatica accessions collected throughout Vietnam and Laos. Saudi J. Biol. Sci. 31: doi:10.1016/j.sjbs.2023.103895.
Haque, M. A. and Sakimin, S. Z. (2022). Planting arrangement and effects of planting density on tropical fruit crops-a review. Hortic. 8: doi:10.3390/horticulturae8060485.
Hasan, M. R., Tahsin, A. K., Islam, M. N., Ali, M. A. and Uddain, J. (2017). Growth and yield of lettuce (Lactuca Sativa L.) influenced as nitrogen fertilizer and plant spacing. J. Agric. Vet. Sci. 10: 62-71.
Ibrahim, M., Makhadmeh., Al-Tawaha, A., Edaroyati, P., Al-Karaki, G., Tawaha, A. R. A. and Hassan, S. A. (2017). Effects of different growth media and planting densities on growth of lettuce grown in a closed soilless system. Res. Crop. 18: 294-98.
Le, T. B. and Pham, Q. K. (2015). Soil resources of Vietnam, major soil types and their use in agriculture, 1st edn. Hanoi Agricultural Publishing House, Hanoi, Vietnam. pp. 118.
Li, W., Xiong, Y., Tong, J., Lin, W., Xue, J., Wang, Y. and Gao, Z. (2024). Higher seed rates enlarge effects of wide-belt sowing on canopy radiation capture, distribution, and use efficiency in winter wheat. Plants 13: doi:10.3390/plants13070986.
Lykhovyd, P. V., Ushkarenko, V. O., Lavrenko, S. O., Lavrenko, N. M., Zhuikov, O. H., Mrynskyi I. M. and Didenko, N. O. (2019). Leaf area index of sweet corn (Zea mays ssp. Saccharat L.) crops depending on cultivation technology in the drip irrigated conditions of the south of Ukraine. Mod. Phytol. 13: 1-5.
Madavi, B., Leela, R. P., Sreenivas, G. and Surekha, K. (2017). Effect of high density planting and weed management practices on weed drymatter, weed indices and yield of Bt cotton. Int. J. Pure Appl. Biosci. 5: 1945-50.
Mengistu, F. G., Tabor, G., Dagne, Z., Atinafu, G. and Tewolde, F. T. (2021). Effect of planting density on yield and yield components of lettuce (Lactuca sativa L.) at two agroecologies of Ethiopia. Afr. J. Agric. Res. 17: 549-56.
Naghdi, B. H., Yazdani, D., Mohammad, A. S. and Nazari, F. (2007). Effects of spacing and harvesting time on herbage yield and quality/quantity of oil in thyme, Thymus vulgaris L. Ind. Crops Prod. 5: 51-56.
Nguyen Quang Co., Nguyen Tan Quang. and Truong Thi Hong Hai (2024). Effect of some farming factors on growth and yield of in vitro Centella (Centella asiatica (L.) Urban) in Quang Tho commune, Thua Thien Hue province. Hue Uni. J. Sci. 133: 98-106.
Phan Thi Phuong Nhi., Le Khac Phuc., Nguyen Van Toan., Thai Thi Huyen. and Nguyen Huu Ngu. (2023). Effects of the microbial organic fertilizer and plant density on growth, development and yield of roselle (Hibiscus sabdariffa L.) in Central Vietnam. Res. Crop. 24: 598-604.
Soniya, T. and Arivazhagan, E. (2023). Influences of different plant spacing on growth and yield of summer squash (Cucurbita pepo L.). Crop Res. 58: 233-37.
Wan, C., Gao, S., Wang, J., Lei, X., Ge, J., Tao, J., Wang, Q., Dang, P., Wang, M., Yang, P. and Gao, J. (2023). Optimal planting density combined with phosphorus input promotes common buckwheat resource use efficiency and productivity to increase grain yield. Agric. Water Manag. 287: doi:10.1016/j.agwat.2023.108468.
Wu, L., Deng, Z., Cao, L. and Meng, L. (2020). Effect of plant density on yield and quality of perilla sprouts. Sci. Rep. 10: doi:10.1038/s41598-020-67106-2.
Adler, P. B., Smull, D., Beard, K. H., Choi, R. T., Furniss, T., Kulmatiski, A., Meiners, J. M., Tredennick, A. T. and Veblen, K. E. (2018). Competition and coexistence in plant communities: intraspecific competition is stronger than interspecific competition. Ecol. Lett. 21: 1319-29.
Amaducci, S., Scordia, D., Liu, F. H., Zhang, Q., Guo, H., Testa, G. and Cosentino, S. L. (2015). Key cultivation techniques for hemp in Europe and China. Ind. Crops Prod. 68: 2-16.
Beyenesh, Z., Mereseit, H. and Niguse, A. (2017). Effect of inter and intra-row spacing on yield and yield components of lettuce (Lactuca Sativa) in South East Tigray, Ethiopia. Biomed. J. Sci. Tech. Res. 1: 1698-709.
Dang Thi Cuong., Pham Thanh Tung., Do Thuy Khanh Linh., Nguyen Dang My Duyen. and Nguyen Tan Dzung. (2020). Study of production technology for pennywort powder product by cold-drying method. J. Tech. Edu. Sci. 60: 7-17.
Du, X., Wang, Z., Lei, W. and Kong, L. (2021). Increased planting density combined with reduced nitrogen rate to achieve high yield in maize. Sci. Rep. 11:doi:10.1038/s41598-020-79633-z.
Fang, A., Li, Y., Nie, J., Wang, C., Huang, K., Zhang, Y., She, H., Liu, X. and Ruan, R. (2018). Effects of nitrogen fertilizer and planting density on the leaf photosynthetic characteristics, agronomic traits and grain yield in common buckwheat (Fagopyrum esculentum M.). Field Crops Res. 219: 160-68.
Gong, X., Dang, K., Lv, S., Zhao, G., Tian, L., Luo, Y. and Feng, B. (2020). Interspecific root interactions and water-use efficiency of intercropped proso millet and mung bean. Eur. J. Agron. 115: doi:10.1016/j.eja.2020.126034.
Hai Thi Hong Truong., Nhi Thi Hoang Ho., Han Ngoc Ho., Bao Le Quy Nguyen., Minh Hoang Duy Le. and Thuy Thanh Duong. (2024). Morphological, phytochemical and genetic characterization of Centella asiatica accessions collected throughout Vietnam and Laos. Saudi J. Biol. Sci. 31: doi:10.1016/j.sjbs.2023.103895.
Haque, M. A. and Sakimin, S. Z. (2022). Planting arrangement and effects of planting density on tropical fruit crops-a review. Hortic. 8: doi:10.3390/horticulturae8060485.
Hasan, M. R., Tahsin, A. K., Islam, M. N., Ali, M. A. and Uddain, J. (2017). Growth and yield of lettuce (Lactuca Sativa L.) influenced as nitrogen fertilizer and plant spacing. J. Agric. Vet. Sci. 10: 62-71.
Ibrahim, M., Makhadmeh., Al-Tawaha, A., Edaroyati, P., Al-Karaki, G., Tawaha, A. R. A. and Hassan, S. A. (2017). Effects of different growth media and planting densities on growth of lettuce grown in a closed soilless system. Res. Crop. 18: 294-98.
Le, T. B. and Pham, Q. K. (2015). Soil resources of Vietnam, major soil types and their use in agriculture, 1st edn. Hanoi Agricultural Publishing House, Hanoi, Vietnam. pp. 118.
Li, W., Xiong, Y., Tong, J., Lin, W., Xue, J., Wang, Y. and Gao, Z. (2024). Higher seed rates enlarge effects of wide-belt sowing on canopy radiation capture, distribution, and use efficiency in winter wheat. Plants 13: doi:10.3390/plants13070986.
Lykhovyd, P. V., Ushkarenko, V. O., Lavrenko, S. O., Lavrenko, N. M., Zhuikov, O. H., Mrynskyi I. M. and Didenko, N. O. (2019). Leaf area index of sweet corn (Zea mays ssp. Saccharat L.) crops depending on cultivation technology in the drip irrigated conditions of the south of Ukraine. Mod. Phytol. 13: 1-5.
Madavi, B., Leela, R. P., Sreenivas, G. and Surekha, K. (2017). Effect of high density planting and weed management practices on weed drymatter, weed indices and yield of Bt cotton. Int. J. Pure Appl. Biosci. 5: 1945-50.
Mengistu, F. G., Tabor, G., Dagne, Z., Atinafu, G. and Tewolde, F. T. (2021). Effect of planting density on yield and yield components of lettuce (Lactuca sativa L.) at two agroecologies of Ethiopia. Afr. J. Agric. Res. 17: 549-56.
Naghdi, B. H., Yazdani, D., Mohammad, A. S. and Nazari, F. (2007). Effects of spacing and harvesting time on herbage yield and quality/quantity of oil in thyme, Thymus vulgaris L. Ind. Crops Prod. 5: 51-56.
Nguyen Quang Co., Nguyen Tan Quang. and Truong Thi Hong Hai (2024). Effect of some farming factors on growth and yield of in vitro Centella (Centella asiatica (L.) Urban) in Quang Tho commune, Thua Thien Hue province. Hue Uni. J. Sci. 133: 98-106.
Phan Thi Phuong Nhi., Le Khac Phuc., Nguyen Van Toan., Thai Thi Huyen. and Nguyen Huu Ngu. (2023). Effects of the microbial organic fertilizer and plant density on growth, development and yield of roselle (Hibiscus sabdariffa L.) in Central Vietnam. Res. Crop. 24: 598-604.
Soniya, T. and Arivazhagan, E. (2023). Influences of different plant spacing on growth and yield of summer squash (Cucurbita pepo L.). Crop Res. 58: 233-37.
Wan, C., Gao, S., Wang, J., Lei, X., Ge, J., Tao, J., Wang, Q., Dang, P., Wang, M., Yang, P. and Gao, J. (2023). Optimal planting density combined with phosphorus input promotes common buckwheat resource use efficiency and productivity to increase grain yield. Agric. Water Manag. 287: doi:10.1016/j.agwat.2023.108468.
Wu, L., Deng, Z., Cao, L. and Meng, L. (2020). Effect of plant density on yield and quality of perilla sprouts. Sci. Rep. 10: doi:10.1038/s41598-020-67106-2.
