Assessment of Camelina sativa Performance under Deficit Irrigation with Application of Animal Manure and Micronutrients Nano-Fertilizers

Camelina sativa as a relatively new oilseed crop has a relatively favorable adaptation to semi-arid and warm conditions. This study was conducted to evaluate the effects of different irrigation regimes (FI: full irrigation, ۱۰۰% field capacity, DI: deficit irrigation, ۶۰% field capacity) and the application of varying levels of animal manure and foliar application of iron and zinc nano-fertilizers on the growth and yield of camelina under deficit irrigation conditions during the vegetative growth. A field trial was carried out in the Bileh-Savar region of Ardabil. The animal manure levels were ۰, ۱۰ and ۲۰ t ha-۱ which are displayed as the abbreviations FYM۰, FYM۱۰ and FYM۲۰, respectively. The highest leaf chlorophyll content (۵۵.۸۶) was recorded under FI+FYM۲۰+Zn conditions. DI reduced lateral canopy growth (LCG) by ۳۳% compared to FI conditions. With increasing FYM application specifically under FI, significantly increased LCG. The effect of nano-iron foliar application on LGC was greater than that of zinc. The application of FYM۱۰ and FYM۲۰ increased biomass by ۷% and ۱۶% compared to FYM۰. DI reduced the number of siliquae by ۳۴% compared to FI. The highest seed yield was recorded under FI+FYM۲۰+Zn conditions (۱۷۸۲ kg ha-۱), and the lowest seed yield was related to DI+FYM۰+FI conditions (۱۱۶۵ kg ha-۱). The highest seed oil content was achieved under FI+FYM۲۰ conditions (۳۵.۱۰%) and the lowest was recorded in plants grown under DI+FYM۰ (۳۱.۵۵%). Overall, the DI with irrigation up to ۶۰% FC does not seem to be an ideal irrigation option in the studied area for camelina production systems. These results could provide valuable insights for farmers in regions with limited water resources, helping them optimize irrigation and fertilization strategies for C. sativa production.

کلیدواژه ها:

Chlorophyll content ، drought stress ، field capacity ، Oil percentage ، semi-arid region ، Vegetative growth