Abstract
The study was carried out as pot experiments using a Green Chilli variety, MI 2, and a Curry Chilli variety, Hungarian Yellow Wax (HYW) at the research field, Faculty of Agriculture, University of Ruhuna. The basal soil mixture was prepared using coir dust, sand, soil and cow-dong (1:1:1 control). Four different potting mixtures were prepared by adding tea waste, compost and inorganic fertilizer. The experiment was carried out according to complete randomized block design with four replicates at the rate of 8 plants per replicate. Plant height (cm), number of pods/plant, weight of pods per plant (g), pod length (cm) and pod appearance were recorded. Carbon-dioxide (CO 2 ) evolution method was applied to observe soil microbial activity in different soil mixtures. Potting mixture combined with tea waste showed significantly highest plant height for both chilli varieties HYW (42 cm) and MI-2 (55 cm) while minimum plant growth in both varieties was recorded in control (P Tropical Agricultural Research and Extension 15(3): 2012: page 33-35 DOI: http://dx.doi.org/10.4038/tare.v15i3.5254
Highlights
Chilli (Capsicum) is one of the economically important vegetable crops cultivated in Sri Lanka
Chilli production is mostly depend on the inorganic fertilizer, but due to the problems associated with any inorganic fertilizer Chilli production using organic fertilizer is timely needed
Four soil mixtures; tea waste, compost and inorganic fertilizer were used for the experiment and the result was compared with control (Table 1)
Summary
Chilli (Capsicum) is one of the economically important vegetable crops cultivated in Sri Lanka. Both dry and fresh pods of Chilli are commonly used in cooking recipes to achieve the taste of daily food with high palatability and nutritious values. Pot technique is an open system of vegetable cultivation. The constitution of the potting mixture directly effects on the final yield of the crop and the several factors must be considered when select the most suitable potting mixture. The availability of nutrients in the potting mixture directly effect on the final economical yield. Paddy husk ash, coir dust, sand or gravel, peat, vermiculite, perlite, sawdust are normally used materials for preparation of soil mixtures.
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