Impact of Fertigation on Soil Nutrient Dynamics in Dalbergia sissoo tree plantations

Abstract

Fertigation allows the controlled placement of nutrients reducing fertilizer losses through leaching and minimize groundwater pollution. In fertigation Nutrient Use Efficiency (NUE) could be as high as 90% compared to 40-60% in conventional method of fertilizer application. Standardizing nutrient management with micro-irrigation system would require consideration to be contributed to soil nutrient dynamics. A field trial was conducted in Forest College and Research Institute, Tamil Nadu Agricultural University, Mettupalayam, Tamil Nadu, India. Water requirement of the tree plantation was calculated using the pan evaporation (PE) data. Fertigation schedule consisted of humic acid and inorganic fertilizer the soil samples were collected at a radial distance of 30, 60 cm and 90 cm and at a depth of 0-30 and 30-60 cm. Soil nutrient dynamics was estimated by analyzing available nitrogen, phosphorus and potassium content of soil. SURFER 7 (Golden software) packages was used to show the contour and three-dimensional view of nutrient distribution vertically and horizontally from the plant.
Keywords: (Fertigation, Humic acid, fertilizers, nutrient dynamics, SURFER software, tree plantation).

Cite this Article
R.K.Kaleeswari, Pema Yoden Bhutia. Impact of Fertigation on Soil Nutrient Dynamics in Dalbergia sissoo tree plantations. Research & Reviews: Journal of Agricultural Science and Technology. 2019; 8(2): 8–12p.