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2. Effect of nitrogen on yield and its uptake of nitrogen at different growth stages of raya (Brassica juncea (L.) Coss.);Antil;Indian J. Agron.,1986
3. Root growth, macro-nutrient uptake dynamics and soil fertility requirements of a high-yielding winter oilseed rape crop;Barraclough;Plant Soil,1989
4. Petiole nitrate nitrogen; is it a good indicator of yield potential in irrigated canola?;Bernardi,1993
5. Topdressing canola: is there an ideal growth stage?;Bernardi,1993