Effect of Fertilizer Application on Growth and Biomass Production of Ailartthils excelsa on an Arid Land

G N Gupta; Neelu Singh; N K Bohra; Bilas Singh

doi:10.56093/aaz.v34i2.65989

Authors

G N Gupta Division of Forest Ecology and Desert Development ,Arid Forest Research Institute, New Pali Road, Basni, Jodhpur
Neelu Singh Tropical Forest Research Institute, Jabalpur, India
N K Bohra Division of Forest Ecology and Desert Development ,Arid Forest Research Institute, New Pali Road, Basni, Jodhpur
Bilas Singh Division of Forest Ecology and Desert Development ,Arid Forest Research Institute, New Pali Road, Basni, Jodhpur

https://doi.org/10.56093/aaz.v34i2.65989

Abstract

A field experment was conducted on an aridisol in Pali forest Division of Western Rajsthan to study the influence of different nitrogen (0. 9 and 18 g N per trec as urea) and phosphate (0. 3 and 6 g P₂O₅ per tree as single superphosphate) levels on growth and biomass production of Ailanthus excelsa N₁₈P₃ (18 g N + 3 g P₂O₅ per tree) was the optimum level and increased tree height by 49%, 85% and 35% at one, two and three years of age: collar circumference by 56%, 101% and 11% and crown diameter by 47%,63% and 58% respectively. at three ages. Increase in total biomass production due to this treatment was 181%. at one year and 185% at two year of age . Magnitude of response was higher due to nitrogen application. Combined application of N and I' had synergistic influence and enhanced the growth. leaf area and root growth of trees.