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Birsa Agricultural University, Ranchi

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20191
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Subject: Agroforestry × Author: Topno, Anupama × Start date: 1988 × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    STUDIES ON COMPARATIVE GROWTH PERFORMANCE OF TEAK AND KADAM AND ITS IMPACT ON PHYSICO - CHEMICAL PROPERTIES OF SOIL UNDER MIXED PLANTATION
    (Birsa Agricultural University, Ranchi, 2019) Topno, Anupama; Mahto, M.
    The present experiment entitled “studies on comparative growth performance of Teak and kadam and its impact on physico – chemical properties of soil under mixed plantation” had been conducted in the year 2008 near Veterinary College Campus, Kanke, and Ranchi. The work was planned with the objectives i.e. (i) To study the growth performance of Teak (Tectona grandis [Linn.]) and Kadam (Anthocephalus cadamba [Roxb.]) under 10 year old mixed plantation (ii) To study the interaction of Teak and Kadam mixed plantation on physico - chemical properties of soil. Random sampling method had been adopted and the data analyzed through paired t-test. The parameters studied were Tree height, diameter at breast height, crown spread, crown length, bole height, basal area and tree volume. Physical properties of soil viz. bulk density, particle density, porosity, water holding capacity, soil texture and chemical properties of soil were also studied such as pH, organic carbon, available nitrogen, available phosphorus and available potassium. Analysis of the data showed that the tree height and diameter at breast height was more in Anthocephalus cadamba (7.97m and 0.14m) than the Tectona grandis (6.50m and 0.09m). Similarly crown spread, crown length and bole height was more in Anthocephalus cadamba (7.45m, 5.14m and 3.30m) than Tectona grandis(5.70m, 3.22m and 2.59m) respectively. Computation of Basal area and Volume also showed that they are more in Anthocephalus cadamba (0.015m2 and 0.119 m3) than the Tectona grandis (0.006m2 and 0.039m3) respectively. The maximum value of bulk density (1.56 gm cm-3) had been found under Tectona grandis and minimum in Anthocephalus cadamba (1.55 gm cm-3) in unplanted area. The particle density was maximum in Anthocephalus cadamba (2.58 g cm-3) and minimum in Tectona grandis (2.57 g cm-3). Similarly porosity was maximum in planted area than unplanted area and the highest value under Tectona grandis (40.45 %) and minimum under Anthocephalus cadamba (40.00%). Maximum water holding capacity was found under Tectona grandis (10.73%) and minimum in Anthocephalus cadamba (10.22) under planted area. In texture sand was maximum in unplanted area of Tectona grandis (70.80%) and minimum in Anthocephalus cadamba (69.68%). Silt was maximum in planted area of Anthocephalus cadamba (20.73%) and lowest under Tectona grandis (19.06%). In case of Tectona grandis (12.37%) clay was maximum in planted area whereas in Tectona grandis clay was maximum (12.26%) in unplanted area. The results further showed that the soil pH, Organic carbon (OC), available nitrogen (N), and available potassium (K) had increased in planted area than unplanted area; whereas available phosphorus (P) had higher value in unplanted area than planted area. The maximum pH was recorded in Anthocephalus cadamba (5.78) and lowest in Tectona grandis (5.64). The highest percentage of organic carbon found in Anthocephalus cadamba (0.58%) and lowest in Tectona grandis (0.56%) in planted area. The available nitrogen was highest in Anthocephalu scadamba (289.75Kg ha-1) and lowest in Tectona grandis (271.73 Kg ha-1). Available phosphorus was highest in Anthocephalus cadamba (15.68 kg ha-1) and lowest in Tectona grandis (13.70 kg ha-1) in unplanted area. The highest value of available potassium was found in Anthocephalus cadamba (330.08 Kg ha-1) and in lowest in Tectona grandis (394.99 kg ha-1). Statistical analysis of the result revealed that the growth performance of Anthocephalus cadamba and Tectona grandis were highly significant. Physical properties of soil such as bulk density, particle density, porosity, water holding capacity as well as texture, sand and silt were significant in both species whereas clay was found non significant. Statistically analysis of chemical properties of soil found highly significant in both tree species viz. Anthocephalu scadamba and Tectona grandis. Therefore it may concluded from the present investigation that physical properties of soils was improved in planted area than the unplanted area; the soil pH, soil organic carbon (OC), available nitrogen (N) and available Potassium (K) were found significantly higher in planted area than the unplanted area whereas the available Phosphorus (P) was significantly higher in unplanted area.