Effects of shade and nitrogen levels on quality Bangladhonia production

Abstract

A field experiment was conducted to determine the optimum shade level and nitrogen fertilizer for quality Bangladhonia (Eryngium foetidum L.) production at the Bangahandhu Sheikh Mujibar Rahman Agricultural University (BSMRAU) Research Farm during December 2002 to May 2003. The treatments consisted of four shade levels (0, 25, 50, and 75% shades) and five nitrogen rates (0, 115, 138, 161, and 184 kg N/ha). Shades were artificially created by using nylon nets of different mesh sizes and colours. Fifty percent shade and application of 161 kg N/ha independently as well as in combination gave the maximum fresh yield of Bangladhonia. β-carotene and vitamin C contents in Bangladhonia leaves were maximum in full sun light (0% shade) followed by 25 and 50% shade. Application of 161 kg N/ha produced the highest amount of β-carotene and vitamin C followed by 184 kg N/ha. The lowest amount of leaf fibre (1.30%) was recorded from 75% shade closely followed by 50% shade (1.76%), whereas the maximum amount of leaf protein was found at 50% shade. Application of 184 kg N/ha gave the highest amount of leaf protein and less leaf fibre that was followed by 161 kg N/ha. The results revealed that Bangladhonia performed better in terms of fresh yield and quality under 25-50% shade condition. Key Words: Bangladhonia; shade; nitrogen; yield; quality. DOI: 10.3329/bjar.v34i2.5791Bangladesh J. Agril. Res. 34(2): 205-213, June 2009

Response of coriander (Coriandrum sativum L.) foliage to different rates and methods of nitrogen application

“…The minimum number of leaves/plant was found in control (N 0 ) treatment in all cases (CS001 and CS003). The results are in agreement with that of Moniruzzaman et al (2009) where maximum number of leaves/plant was found at the highest dose of N in 'Bangladhonia' (Eryngium foetidum L.). The maximum leaves/plant (7.45/plant and 8.22/plant) was recorded from two applications of N, one half at basal and the remaining half at 30 DAS as top dress (M 2 ), which was similar to the application of entire N applied as basal (M 1 ) and one-half N applied at basal and the rest one-half at 30 DAS as foliar spray (M 3 ) in the genotype CS001 and CS003, respectively (Table 1).…”

“…The result is in agreement with the result of BARI (2010) where it was reported that the maximum fresh yield of Batishak was obtained at 80 kg N/ha and no significant difference was observed among 40 and 80 kg N/ha. The result is in partial agreement with Moniruzzaman et al (2009) who found the highest fresh yield of Bangladhonia with the application of the highest dose of nitrogen. The foliage yield showed a linear response with increasing levels of nitrogen (Fig.…”

“…This result is in consonance with that of BARI (2010) where maximum individual plant weight (fresh weight/plant) of 'Batishak' was recorded at 80 kg N/ha. Moniruzzaman et al (2009) also obtained maximum fresh weight/plant from the highest dose of nitrogen in 'Bangladhonia' (Eryngium foetidum L.). In CS001 and CS003, one-half N at basal and the rest one-half at 30 DAS as top dress (M 2 ) gave the maximum single plant weight (2.05 g/plant and 2.53 g/plant, respectively) followed by the application of entire N applied as basal (M 1 ) and the lowest plant weight (1.33 g/plant) was recorded from the application of one-third N at 20 DAS, one-third at 30 DAS, and the rest one-third at 40 DAS as foliar application (M 4 ) ( Table 2).…”

Effects of organic and inorganic fertilizer combination with insect netting on the production of Indian spinach (Basella alba L.)

“…This result is coherence with the result of yield of Indian spinach as leaf number, leaf length and the vine length increased higher yield. In earlier study plants grown under shade (50%) with nitrogen application showed vigorous growth and yield compared to open field (unshaded condition) in bangladhonia (Eryngium foetidum) (Moniruzzaman et al, 2009). Similarly, Akther et al (2019) have found that the highest yield of okra was found 57% higher compared to control which was grown under the netting with the nutrient management combination of organic and inorganic fertilizers.…”

Effects of graded shade levels on the growth and quality of <em>Cordyline fruiticosa</em> variety ‘Purple Compacta’ in the Batticaloa district

“…These might be the reasons for highest plant height observed in this shade level throughout the experiment. Moniruzzaman et al, (2009) This might be the fact that plant at this shade level would have received.…”