Effects of decomposed poultry litter, nitrogen and phosphorus on growth and micronutrient content of arum (Colocasia esculentus L.)

Abstract

A pot experiment was carried out to evaluate the integrated effects of poultry litter, nitrogen and phosphorus on the growth and micronutrient (Fe, Zn and Cu) contents of arum (Colocasia esculenta L.) in the net house of the Department of Soil, Water and Environment, University of Dhaka. Height (76 cm), leaf number (5 no./plant), leaf area (1045.66 cm 2 /plant) and fresh (130.7 g/plant) and dry (14.35 g/plant) weights of leaf, stem, bulb and root were achieved highest in the combined application of decomposed poultry litter compost and nitrogen (PL 2 N 40 P 0 ). The leaf area, and fresh and dry weights of leaf, stem, bulb and root varied significantly (p≤ 0.5). The concentration of iron, zinc and copper in different parts were measured the highest in the treatments (0.70%), (0.58%), (0.22%) for leaf; (0.83%), (0.96%), (0.99%) for stem; (0.74%), (0.09%), (0.05%) for bulb and (0.98%), (0.64%), (0.27%) for root, respectively. Generally, the concentrations of Fe, Zn and Cu were found to be the highest in PL 4 N 20 P 15 , PL 4 N 0 P 15 and PL 2 N 0 P 0 treatments, respectively.

Effects of poultry litter compost and chemical fertilizers on growth and yield of field grown sunflower (Helianthus annus L.)

“…Leaf area (376.4 cm 2 ) and leaf area index (13.61) were also highest in the T16 (4.5ton PL + N120P90K150 kg/ha) treatment. Uddin et al (5) also reported that height, leaf number, leaf area in arum were achieved highest significantly (p < 0.05) in the combined application of decomposed poultry litter compost and nitrogen. Dry weight of root and stem: Effects of poultry litter compost and NPK fertilizers on dry matter and seed yield of sunflower plants are shown in Table 3.…”

“…This results the large-scale accumulation of wastes including manure and litters which may pose disposal and pollution unless environmentally and economically sustainable management technologies are evolved. Most of the litter produced by the poultry industry is currently applied to agricultural land as a source of nutrients and soil amendment (5) .…”

Raising of Mahogany (Swietenia Mahagoni L.) Seedlings to Combat Climate Change as Influenced by Organic Manures and Chemical Fertilizers

“…It was found that the combined application of organic manure, NPK were better performer for leaf number and leaf area (cm sq.) enhancement of arum (Uddin et al 2018). The results of the branch number per plant and the girth of the stem measured from 2 cm above the soil surface at 105 days before harvesting are presented in Table 4.…”