Agronomic Traits and Fruit Quality of Pineapple with Different Levels of Chicken Manure Application

  • Auraiwan Isuwan Faculty of Animal Sciences and Agricultural Technology, Silpakorn University, Petchaburi Campus, Petchaburi
Keywords: Ananas comosus, Chicken manure, Plant growth, Yield, Fine-silty soil


The responses of the pineapple (Ananas comosus (L.) Merr cv. Pattavia) grown in a fine-silty soil to various levels of chicken manure, in terms of plant growth, and fruit yield and quality, were investigated at a farm plantation in Petchaburi, Thailand. A randomized complete block design with 4 replications was used. Treatments were the chicken manure applied in levels equivalent to 0 (control), 3, 6 and 9 g nitrogen (N) plant-1. The manure was manually and thoroughly mixed with the soils, which was incubated for 30 days prior to pineapple planting. Agronomic traits of the pineapple plants and chemical composition of the pineapple fruits were determined. Plant growth and fruit size were linearly increased (p<0.05) with the increased manure levels. Fresh fruit weight from the highest level of manure application was 60% higher than that of the control treatment. Similarly, citric acid and vitamin C contents were linearly increased
(p<0.05) as the manure rates increased. It can be concluded that growth and yield of the pineapple positively respond to increased chicken manure application. In terms of productivity, the moderate application rate of
chicken manure cannot yet be recommended because curvilinear response has not been detected in this study. Therefore, further study with respect to a wider range of application rate is required to find out the most appropriate rate.
Key Words: Ananas comosus; Chicken manure; Plant growth; Yield; Fine-silty soil
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