Wheat response to the application of zinc and boron

Damary J. Fretes M., DiosnelAmarilla M., Milciades Melgarejo, Miguel Bogado and Ever Maidana

The objective of the present work was to evaluate the response of wheat (Triticumaestivum) to the application of zinc and boron. The test was carried out in the experimental field of IPTA, Yjhovy, Paraguay. We used the complete random blocks design with 6 treatments and 4 blocks. The treatments were the application of Zinc (Zn) and Boron (B) in sowing and foliar route; being T1- control without fertilization, T2- basic fertilization with NPS without Zn and B, T3-application of Zn in sowing 5kg ha-1, T4- Zn leaf application 5kg ha-1, T5- B leaf application 0.4kg ha-1 and T6- Zn + B leaf application 5kg ha-1 + 0,4kg ha-1. The variables evaluated were plant height (PH), spike numbersper plant (SNP), ear length (EL), weight of thousand grain (WTG), yield (Y), hectolitric weight (HW) and Falling number (FN).No statistical differences were observed for the variables plant height, number of spikes per plant, hectolitric weight and falling number.Significant differences were observed for the variables ear length where the T6 obtained the highest average with 7.58 cm. The highest weight of thousand seeds was observed with the T2 that obtained 35,16 g. The best productivity was observed with the T3 which obtained 2496 kg ha-1.

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