Effect of irrigation on the growth and yield of (<i>Daucus carota</i> ssp. <i>sativus</i>) carrot in hill valley

Abstract

Experiments were conducted at Hill Agricultural Research Station, Khagrachari during the period from November to February in 2005-06 and 2006-07 to determine the appropriate irrigation schedule for carrot production in hill valley. The experiment consisted of five treatments of irrigation after plant established viz. No irrigation (I 0 ), irrigation at 1W: CPE of 0.6 (I 1 ), irrigation at 1W: CPE of 0.8 (1 2 ), irrigation at 1W: CPE of 1.0 (I 3 ) and irrigation at 1W: CPE of 1.2 (I 4 ). The amount of irrigation water (IW) was fixed at 4 cm. The experiment was laid out in RCBD with 3 replications. The treatments significantly influenced the growth, yield contributing characters and yield of carrot. Among the treatments, irrigation at IW: CPE of 1.2 gave the maximum yield (51.47 t/ha) which received 4 irrigations after plant stand with applied total irrigation water of 16 cm resulting in the highest net return of Tk. 120,443 with the highest BCR of 2.41. It also produced carrot at the lowest production cost of Tk. 1.66 per kg. Irrigation water use efficiency was obtained 1705.63 kg/ha/cm by this treatment.

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

“…The highest marketable yield per hectare (46.91 t) was found from the combination of irrigation at 7 days interval with mixed fertilizer (I7F2) and the lowest marketable yield per hectare (26.72 t) was found from the combination of no irrigation with no fertilizer (I0F0) ( Table 4). The results associated with yield contributing characters were in agreement with the findings of Alam et al (2010), Hamma et al (2012); Mehedi et al (2012). Mulching is used to conserve the soil moisture which was in combination with mixed fertilizer gave the better result of cabbage (Farzana et al, 2019).…”

“…Application of irrigation at 7 days interval produced the highest number of leaves (10.75) whereas without irrigation produced the lowest (8.81) ( Table 1). Hamma et al (2012) and Alam et al (2010) also recorded the similar result where the number of leaves was 10.14 at the irrigation of 7 days interval and 12.63 at the highest level (four times) of irrigation. The highest number of leaves (10.46) was obtained from mixed fertilizer and the lowest number of leaves (8.63) was found from control treatment ( Table 1).…”

“…at 5 days interval compared to the lower days and higher days interval of irrigation. Alam et al (2010) also found the highest individual root weight (182.90 g) at the highest level of irrigation. The highest fresh weight of root (98.77 g) per plant was obtained mixed fertilizer and the lowest fresh weight of root (82.49 g) was found from no fertilizer application (Table 2) which was similar to Mehedi et al (2012) and Moniruzzaman et al (2013).…”

“…Plant height of carrot was maximum at 7 days irrigation interval (45.35cm) at 100 DAS and minimum (39.77 cm) at 100 DAS with no irrigation (Table 1) and similar result was found by Hamma et al (2012) who reported the highest plant height at 7 days irrigation interval. Alam et al (2010) also recorded the highest plant height (70.68 cm) at the highest level (four times) of irrigation. The tallest plant (47.58 cm) was obtained from mixed fertilizer (F2) and the shortest plant (35.08 cm) was found from control (F0) treatment of fertilizer application (Table 1).…”

Effect of water supply on sugar concentration of carrot

“…Appropriate soil moisture throughout the growing season is one of the most important production requirements for umbelliferous vegetables (RUBATZKY et al, 1999). Irrigation can result in lower carrot dry matter and monosaccharide content (GASIOROWSKA & CEGLAREK, 1996;ALAM et al, 2010), while TÓTH-MARKUS & TAKÁCS-HÁJOS * To whom correspondence should be addressed. Phone: +36-28-522071; fax: +36-28-410804; e-mail: ombodi.attila@mkk.szie.hu Acta Alimentaria 44, 2015 (2001) found that irrigation had almost no infl uence on the sugar content of carrot root.…”