Vol. 11, Issue 12 (2022)

Author(s):
Mohan Paradkar, AK Singh, BS Dwivedi, Nitin Singhai and Yati Raj Khare

Abstract:
A field experiment was conducted during rabi 2020-21 to study the effect of NPK and biofertilizer levels on N, P, K, S content and its uptake in Jawahar selection-1 cultivar of Quinoa. Ten Treatments viz., T₁ (Control), T₂ (NPK @ 60:30:20 kg ha^-1), T₃ (NPK @ 90:45:30 kg ha^-1), T₄ (NPK @ 120:60:40 kg ha^-1), T₅ (T₂+Azotobacter and PSB @ 5 kg ha^-1), T₆ (T₃+Azotobacter and PSB @ 5 kg ha^-1), T₇ (T₄+Azotobacter and PSB @ 5 kg ha^-1), T₈ (T₅+VAM @ 6.25 kg ha^-1), T₉ (T₆+VAM @ 6.25 kg ha^-1) and T₁₀ (T₇+VAM @ 6.25 kg ha^-1) were evaluated under randomized block design replicated thrice. The results of the experiment suggested that contents of N, P, K & S in grain and straw were significantly affected by the addition of nutrients through various NPK levels and reflected increasing trend from T₂ over control. Higher NPK levels improved the content of nutrients in grain over the preceding NPK levels. The combined use of NPK nutrients with different levels in combination with biofertilizers under T₄ to T₁₀ treatments significantly affected the NPK content of grain and stover. Nutrient uptake was comparatively higher in quinoa seeds except K which was highest in stover. Significant variation in soil available N, P, and K was observed due to the effect of treatments; however the physico-chemical properties remained similar with non-significant variation after crop harvest.