Abstract
Wheat is grown in Brazil, mostly in no-till, a system in which the zinc can become potentially deficient, due to excessive application of acidity corrective and phosphate fertilizers in surface and, or at shallow depths. This study aimed to evaluate the effect of foliar application of zinc in agronomic characteristics and yield of wheat. The experimental design was randomized blocks with five replications. Treatments consisted of four doses of zinc (0, 54, 108 and 216g ha-1 Zn), divided into two foliar applications, the first at tillering (18 days after plant emergence) and the second at the boot stage (65 days after emergence). Foliar application of zinc increased the number of fertile tillers and yield of wheat, however, have little effect on the agronomic characteristics of no-tilled crop with high nutrient content in soil. O trigo é cultivado, no Brasil, predominantemente, em semeadura direta, sistema em que o Zn pode tornar-se potencialmente deficiente, em decorrência da aplicação excessiva de corretivos da acidez e de fertilizantes fosfatados em superfície e/ou em pequenas profundidades. Este estudo teve como objetivo avaliar o efeito da aplicação foliar de zinco nas características agronômicas e produtividade do trigo. O delineamento experimental utilizado foi em blocos casualizados, com cinco repetições. Os tratamentos constituíram-se de quatro doses de zinco (0; 54; 108 e 216g ha-1 de Zn), divididas em duas aplicações foliares: a primeira no afilhamento (18 dias após a emergência das plantas) e a segunda no início do emborrachamento (65 dias após a emergência das plantas). A aplicação de Zn, via foliar, aumentou o número de afilhos férteis e a produtividade de trigo, porém tem pouco efeito nas características agronômicas da cultura em sistema de semeadura direta com teor alto de nutriente no solo.
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Claims 3
Claim · model-written summary
Foliar zinc increased fertile tiller number in wheat.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- Foliar application of zince0
- Outcome
- number of fertile tillerse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar application of zinc increased the number of fertile tillers and yield of wheat”
Claim · model-written summary
Foliar zinc increased wheat yield.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Foliar application of zince0
- Outcome
- yield of wheate0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar application of zinc increased the number of fertile tillers and yield of wheat”
Claim · model-written summary
Foliar zinc had little effect on other agronomic characteristics of the no-tilled wheat crop with high soil nutrient content.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- foliar application of zinct0
- Outcome
- agronomic characteristicse0
- Direction
- little effecte0
- Qualifier
- high nutrient content in soile0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“however, have little effect on the agronomic characteristics of no-tilled crop with high nutrient content in soil”
t0“wheat to foliar application of zinc”
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