Effect of chitosan and chemical fertilizers on the vegetative growtl-1 performance of dryland paddy

Dg Nur Farhana Yahya, (2017) Effect of chitosan and chemical fertilizers on the vegetative growtl-1 performance of dryland paddy. Universiti Malaysia Sabah. (Unpublished)

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Abstract

This study was conducted to evaluate the effect of chitosan and chemical fertilizers concentrations on the vegetative growth performance of dryland paddy. The chemical fertilizers used were urea, TSP and MOP in a 120-60-60 ratio. This field experiment used factorial completely randomized design (CRD) and took three months. The treatments were: (i) 0 ppm chitosan (Tl) (ii) 40 ppm chitosan (T2) (iii) 80 ppm chitosan (T3) (iv) 120 ppm chitosan (T4) (v) 100% NPK (Fl) (vi) 75% NPK (F2) (vii) 50% NPK (F3) (viii) 25% NPK (F4). 100% NPK was defined as NPK ratio of 120-60-60. Sixteen different treatment combinations were applied and each treatment combination was replicated four (4) times. Six parameters were recorded in this experiment including plant height, number of tillers, main culm diameter, chlorophyll content at panicle initiation, total fresh weight and total dry matter. Soil was analyzed for pH, N, and available P before and after the experiment. All data were analyzed using ANOVA at 5% level of significance. The ANOVA results for plant height, number of tillers, main culm diameter, chlorophyll content, and total soil nitrogen show no significant difference between the different concentrations of chitosan and fertilizers. The interaction between T4 and F2 resulted in a significantly higher fresh weight (231.5 g) compared to other interactions. It was 88% greater than the interaction between T2 and F3 (122.6 g). The interaction between T4 and F2 resulted in a 64.9% significantly higher dry matter (44.9 g) compared to Tl and F4 (27.2 g). For soil pH, the interaction between T4 and F4 shows the highest value (6.6) and was 8.6% greater than the interaction between Tl and Fl (6.1). The interaction between T4 and F3 resulted in a significantly higher soil available phosphorus (0.52 mg kg-1). It was 92%greater than the interaction between Tl and F2 (0.27 mg kg-1). The results indicate the mild effect of chitosan incorporation for several vegetative growth parameters. However, the positive effects of chitosan to the plants are not negligible and a longer term study is needed to see the real potential of chitosan especially to the yield of dryland paddy.

Item Type: Academic Exercise
Uncontrolled Keywords: Chitosan , chemical fertilizers , paddy
Subjects: S Agriculture > S Agriculture (General)
Divisions: FACULTY > Faculty of Sustainable Agriculture
Depositing User: Noraini
Date Deposited: 11 Nov 2019 05:23
Last Modified: 11 Nov 2019 05:23
URI: http://eprints.ums.edu.my/id/eprint/24050

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