SciELO - Scientific Electronic Library Online

 
vol.33 issueUNICOAlternaria Helianthi (Hansf.) Tubaki & Nishihara occurring on sunflowers (Helianthus annuus L.) in the state of São PauloStudy of types of forcing graft development in nucelar natal orange (Citrus sinensis (L.) Osbeck) on rangpur lime (C. limonia Osbeck) author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

Share


Bragantia

Print version ISSN 0006-8705On-line version ISSN 1678-4499

Bragantia vol.33 no.unico Campinas  1974

https://doi.org/10.1590/S0006-87051974000100033 

NOTA

 

Época de colheita do milho, para estudo dos nutrientes nitrogênio, fósforo e potássio, em ensaios em casa de vegetação

 

Harvesting time and pot size in greenhouse experiments to study nitrogen, phosphorus, and potassium in two varieties of corn

 

 

Hermano Gargantini; Edmir Soares*

 

 


SUMMARY

The effects of harvesting time and pot size in results of greenhouse experiments were investigated to study nitrogen, phosphorus, and potassium fertilization on two varieties of corn: IAC Hmd 6999 and maia-2. The soil used was a Dark Red Latosol collected at the Centro Experimental de Campinas.
The fertilizer treatments were N0P0K0, N0P1K1, N1P0K1, N1P1K0, and N1P1K1. Pots of 6.0 and 10.0 kg capacity were used and harvest were made at 30, 60, 90, 120, 140 and 150 days after germination, according to the variety studied.
With 60 days after germination and for both sizes of pots there was a clear response to nitrogen and phosphorus, indicating that both sizes can be used to study those nutrients in trials with corn. There was no conclusion for potassium fertilizing. A different reaction to nitrogen was observed according to the varietv utilized.


 

 

Texto completo disponível apenas em PDF.

Full text available only in PDF format.

 

 

Recebida para publicação em 17 de maio de 1974.

 

 

* Com bolsas de suplementacão do CNPq.

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License