Effect of Application of Different Levels of Single Super Phosphate on Growth Of Poplar (Populus deltoids bartr. Ex Marsh.) Under Nursery Conditions

The field experiment is carried out in February to June 2017 and conducted in Doon (PG) College, Dheradun, to explore the growth performance of Populusdeltoides under nursery condition. The experiment was laid accordingly on G-48 variety with the application of inorganic fertilizer i.e. Single Super Phosphate (SSP) which resulted in better plant height, root length and other growth attributes. The plant showed increased growth factors and the productivity rate increased drastically from day 75 till day 90 and onwards. The experiment was conducted in randomized block design with six treatments and fourreplication. Agroforestry systems based on poplar (Populus deltoides) are becoming popular in eastern and northern parts of India. Therefore studies on the structure and function of the systems are very important. Among all treatments T₅ (150 gm SSP) and T₆ (200 gm SSP) was found consistence in all the growth parameters i.e. plant height, diameter, leaf area, etc., so these treatments were considered the best of all the six treatments.