Influence of different organic manures on growth, yield and mineral nutrient accumulation in lettuce (Lactuca sativa L.)

Abstract

Effects of organic manures on growth and yield of lettuce (Lactuca sativa L.) and nutrient accumulation in its leaves was examined. The experiment was conducted in a completely randomized design (CRD) replicated thrice with ten treatments involving nine organic manures and a control treatment. Growth parameters viz. plant height, leaf number, leaf length, leaf area, leaf area index and fresh and dry weight of leaf, stem and root were assessed. The highest height (23.69 cm), longest leaf (32.18cm), leaf area (5883.43cm2), leaf area index (6.434), fresh weight (85.41 g) and dry weight (42.73 g) were found in Payel organic manure. The maximum leaf number (27) was recorded in Approshika organic manure. The maximum content of nitrogen (6.12%), phosphorus (1.83%), potassium (4.11%) and Sulphur (1.69%) were observed in Payel organic manure. The best growth performance and nutrient accumulation was observed in Payel organic manure.
 Dhaka Univ. J. Biol. Sci. 30(2): 159-168, 2021 (July)

The Effect of Functionalized Multiwall Carbon Nanotubes with Fe and Mn Oxides on Lactuca sativa L.

“…There are very scarce data available for S content in lettuce which varies from 1 mg/kg up to 1.26% of S in control leave samples [ 41 , 42 ]. Our results fall in this range and are close to those reported by Sularz et al [ 43 ] for control lettuce leaves in a biofortification experiment with iodine and significantly decrease when CNT-Fe 3 O 4 and Fe 3 O 4 are added to the soil.…”

Growth and Yield Performance of Green Capsicum (Capsicum Annuum L.) As Influenced by Vermicompost Application Grown at Rooftop Of Chandpur Area

“…A number of experiments are available in the literature on organic farming of vegetable crops, viz. tomato (Arancon et al 2002), cucumber (Sallaku et al 2009), okra (Ansari and Sukhrai 2010), chinese cabbage (Wang et al 2010), coriander (Ravimycin 2016), spinach (Islam et al 2020), strawberry (Rahman et al 2021), lettuce (Chowdhury and Rahman 2021) and so on. But, scanty information is available on the cultivation of green capsicum using vermicompost under Bangladesh edaphic conditions.…”