Growth and yield of carrot influenced by organic and inorganic fertilizers with irrigation interva

Abstract

The experiment was carried out at the Horticulture Farm of Bangladesh Agricultural University, Mymensingh to investigate the influence of organic and inorganic fertilizers with irrigation intervals on the growth and yield of carrot during November, 2016 to March, 2017. Different days interval irrigation were applied namely no irrigation (I0), 7 days interval (I7), 15 days interval (I15) and 30 days interval (I30). Organic and inorganic fertilizers were given as treatments like control (no fertilizer) (F0), vermicompost (F1), mixed fertilizer (2/3 vermicompost + 1/3 inorganic fertilizer) (F2), inorganic fertilizer (F3). The experiment was laid out in RCBD (randomized complete block design) with three replications. Irrigation interval treatments showed significant influence on growth and yield related parameters of carrot. Plant height, other growth related parameters and yield were found significantly different considering the effect of irrigation and fertilizers treatments. Considering the effect of irrigation, the highest and the lowest plant height was obtained 45.35 cm and 39.77 cm from 7 days interval irrigation and control, respectively. The highest marketable yield (42.47 t/ha) was found from 7 days irrigation interval and it was 27.40% higher compared to control (30.83 t/ha). Mixed of organic and inorganic fertilizer (F2) gave the highest plant height (47.58 cm) and the lowest plant height (35.08 cm) was found from the control treatment. Gross yield and marketable yield per hectare were higher 21.21% and 22.03% in F2 compared to control treatment. Considering the treatment combination, irrigation at 7 days interval with mixed fertilizer (I7F2) produced the highest plant height (50.42 cm), number of leaves (11.67), diameter of root (3.90 cm), length of root (23.20 cm), fresh weight of individual root (106.20 g), gross yield (53.66 t/ha) and marketable yield (46.91 t/ha). The lowest plant height (32.75 cm), number of leaves (7.83), diameter of root (3.10 cm), length of root (13.00 cm), fresh weight of individual root (65.00 g), gross yield (32.00 t/ha) and marketable yield (26.72 t/ha) were found from the treatment combination of no irrigation with no fertilizer (I0F0). Gross yield and marketable yield per hectare were 40.37% and 43.04% higher, respectively in irrigation at 7 days interval with mixed fertilizer than other treatments combination. Irrigation interval at 7 days with mixed fertilizer had the most positive effect for the production of carrot.
 J Bangladesh Agril Univ 17(3): 338–343, 2019

Exogenously Applied Moringa Leaf Extracts and Mixed Fertilizers in Soil to Improve Growth and Yield of Tomato (Lycopersicon Esculentum Mill.)

“…Similarly, researchers also found the higher yield from the combined application of organic and inorganic fertilizers on cabbage, brinjal, carrot, okra and Indian spinach (Afrin et al, 2019;Akhter et al, 2019ab;Farjana et al, 2019;Islam et al, 2017a;Ullah et al, 2008). They argued that this fertilizer combination is giving better result due to supply of both type organic and inorganic fertilizers.…”

“…The effectiveness of organic sources of fertilizers can be improved by combining them with chemical fertilizers, as well as the efficient use of chemical fertilizers for crop production (Chadha et al, 2006). Already, some researchers have applied the combined application of organic and inorganic fertilizer which promotes the sustainable production of vegetables like tomatoes, brinjal, cabbage, Indian spinach, carrots, and okra (Afrin et al, 2019;Farjana et al, 2019;Islam et al, 2017ab;Islam et al, 2020;Ullah et al, 2008). In this technology, they reduced 75% chemical fertilizer replaced by organic fertilizer and achieved higher yield of those crops considering the better soil health and environment and crop production cost.…”

Carrot Productivity under Various Levels of Irrigation and Fertilization

“…The increased number of leaves under full irrigation and 2 g per plant fertilizer rate might be due to the availability of more nutrients from irrigation water and NPK fertilizer that possibly increased the rate of cell division and elongation, leading to the production of more plant leaves, as stated by [36].…”

Effect of fertilizers and mulching on growth and yield of sweet pepper (Capsicum annum L.)

“…Alternatively, there are mixed fertilizers where organic fertilizer is combined with inorganic fertilizer for soil improvement and higher yield. Already, some researchers have applied the combined application of organic and inorganic fertilizer which promotes the sustainable production of vegetables like tomatoes, brinjal, cabbage, Indian spinach, carrots, and okra (Afrin et al, 2019;Farjana et al, 2019;Islam et al, 2017ab;Islam et al, 2020;Ullah et al, 2008). This reduces the need for a higher amount of inorganic fertilizer in crop production.…”