Abstract
A field experiment on effect of fertilizer levels on yield and nutrient uptake of Wheat intersown with Poplar was conducted at Forestry Research Farm, CCS Haryana Agricultural University, Hisar during rabi seasons of 1999-2000 and 2000-2001. The yield and nutrient uptake of Wheat grown under different spacings of Poplar was compared with control (field without tree). Both grain and straw yield of Wheat under Poplar were significantly less than control. Application of 50 per cent of the recommended dose of Wheat sown under 5 m x 4 m spacing during both the years and 100 and 75 per cent of recommended dose in 10 m x 2.5 m and sole Wheat (control) during 1999-2000 and 2000-01, respectively, produced significantly higher grain and straw yield of Wheat. Grain protein content increased significantly with increasing fertilizer level up to 125 per cent of the recommended dose. N, P and K content in Wheat grain was found maximum at 125 per cent fertilizer level of the recommended dose, while in case of straw maximum content was recorded at 100 per cent fertilizer level. Grain and straw uptake of N, P and K significantly increased with successive increase in fertilizer level from control to 125 per cent fertilizer level.
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