Effect of Soil Types and Fertilizers on Nursery Crop of Dalbergia sissoo Roxb.

Abstract

A study conducted on nursery crop of Dalbergia sissoo showed statistical significant results for the initial nodulation and growth behaviour of seedlings in relation to soil (S₁ & S₂) rhizobial inoculation (T₀ & T₁) and inorganic fertilizers (F₀, F₁, F_2 & F₃) and the better results were found in red soil (S₁), rhizobial inoculation (T₁) and application of phosphorus (F₂) as solo and their combination (T₁ x S₁ x F₂) Inoculations enhanced the nodulation and it was maximum with phosphorous in both the soil. Overall growth (1O.5 cm shoot and 15.7 cm root length) and dry matter production (62 mg/plant) and nodulation (23 nodule/plant) were found maximum in T₁ x S₁ X F₂ and the minimum in both rhizobium untreated (T₀) and treated (T₁) plants grown with application of 30N kg/ha, thus presence of nitrogen in soil discouraged the formation of nodules which ultimately reflected in plant growth.