Effects of chemical and organic fertilizers on number of corm and stigma yield of saffron (Crocus sativus)

Relationship between nitrogen and phosphorus use efficiency in saffron (Crocus sativus L.) as affected by mother corm size and fertilization

“…However, by decreasing the nutrient reserves in mother corm and more growth of daughter corms, nutrient contents in soil can be more and more important. In this context, Rezvani Moghaddam et al (2013) stated that saffron flower yield during the first year of cultivation is not dependent on soil nutrient availability, however, in the current study composted cattle manure and chemical fertilizers application increased flower number and dried stigma yield in the second year of the experiment (Table 5). Similar results have been reported by other researchers (Koocheki et al, 2011;Rezvani Moghaddam et al, 2013).…”

“…In this context, Rezvani Moghaddam et al (2013) stated that saffron flower yield during the first year of cultivation is not dependent on soil nutrient availability, however, in the current study composted cattle manure and chemical fertilizers application increased flower number and dried stigma yield in the second year of the experiment (Table 5). Similar results have been reported by other researchers (Koocheki et al, 2011;Rezvani Moghaddam et al, 2013). The results revealed that, during the second year of the experiment, flower number and dried stigma yield increased on account of composted cattle manure compared with chemical fertilizer application (18.4, 16.6 and 16.8%, respectively).…”

“…It appears that, daughter corms growth depends directly on soil nutrient availability (Rezvani Moghaddam et al, 2013). Although both fertilizer types increased daughter corm number and (P) and (N) concentration, the effect of composted cattle number was more pronounced ( Table 6).…”

Irrigation levels and dense planting affect flower yield and phosphorus concentration of saffron corms under semi-arid region of Mashhad, Northeast Iran

“…It has been recommended that density of 50 corm m −2 , planted in a row, is the best planting density to gain desirable yield (Kafi et al, 2002). Due to being a perennial plant, mother corm dwindling and formation of more small daughter corms (less than 4 g) especially in the first year, saffron cultivation at low densities (conventional practice) is not economically reasonable during the preliminary years (Koocheki et al, 2011a;Rezvani Moghaddam et al, 2013), therefore higher planting densities, which named "dense corm planting" are considered as an alternative approach and planting pattern to offset yield loss during primarily years (Koocheki et al, 2011c(Koocheki et al, , 2012. In this regard, dense corm planting of saffron was investigated up to 400 corm m −2 (Koocheki et al, 2012).…”