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| NADEEM,M.A.; TANVEER,A.; MAQBOOL,R.; ABBAS,T.; FAROOQ,N.. |
| ABSTRACT: Low fertilizer use efficiency due to inappropriate weed control practices is one of the main causes of poor wheat yield worldwide. A 2 year field experiment was conducted to study the effects of three fertilizer levels and four weed control practices on fertilizer use efficiency and nutrient uptake by wheat and its associated weeds. Fertilizer levels were F0 (zero fertilizer), F1 (75 kg ha-1 N + 50 kg ha-1 P2O5), and F2 (150 kg ha-1 N + 100 kg ha-1 P2O5) and weed control included W1 (weedy check), W2 (pendimethalin applied at 1,031 g a.i. ha-1), W3 (isoproturon + carfentrazone ethyl applied at 750 g a.i. ha-1) and W4 (manual weed control). Different weed control practices significantly reduced the NPK uptake by weeds and increased NPK uptake by... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Grain yield; Herbicides; Fertilizer use efficiency; Nutrients uptake; Losses by weeds. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100229 |
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| Dias,Ana S.; Fernando,Ana L.; Lidon,Fernando C.. |
| Genotypes of bread and durum wheat were submitted to heat stress after anthesis and the accumulation of Na, K and P, at booting, grain filling and maturity, were investigated. It was found that, after anthesis, the levels of Na in shoots were considerably higher in durum relatively to bread wheat, being this trend also observed in the total plant accumulation. In these genotypes, heat stress affected significantly Na concentration in shoots. In general, heat stressed plants had significant higher levels of K in the shoots and the proportion of this nutrient translocation from the roots also increased with heat stress. In general, the levels of P didn't show significant differences with heat stress. The effects of heat stress among the wheat genotypes life... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Triticum aestivum L.; Triticum turgidum subsp. Durum; Heat stress; Nutrients uptake; Nutrients translocation. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202009000200007 |
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