Yield and net income of unripe corn in function of the hilling dates

Authors

  • Néstor Antonio Heredia Zárate Universidade Federal da Grande Dourados
  • Maria do Carmo Vieira Universidade Federal da Grande Dourados
  • Thalita Martinhão de Sousa Universidade Federal da Grande Dourados
  • Diovany Doffinger Ramos Universidade Federal da Grande Dourados

DOI:

https://doi.org/10.5433/1679-0359.2009v30n1p95

Keywords:

Zea mays L, Tillage, Rentability.

Abstract

The Agromen 2029 unripe corn was studied without and with hilling on 14; 28; 42; 14-28; 14-42; 28-42 and 14-28-42 days after sowing (DAS). Those eight treatments were arranged in a randomized experimental block design, with four replications. The highest heights of plant (176.9 cm) and of first ear (83.9 cm) were from those with no hilling (SA) and the smallest ones (162.4 and 72.9 cm, respectively) were from those with hilling on 28 DAS. The greatest yield of ears (56,000 ears ha-1) was obtained from 14-28-42 DAS treatments and the smallest one was from SA (47,000 ears ha-1). The greatest yield of non commercial ears (15,000 ears ha-1) was obtained from 14-42 and 14-28-42 DAS treatments and the smallest one was from SA (7,000 ears ha-1). Yield of commercial ears varied from 38,000 ears ha-1, on 28 DAS treatment to 41,000 ears ha-1, on 14, 42, 28-42 and 14-28-42 DAS treatments. Costs of yield varied from R$ 1,315.90 ha-1, in SA treatment, to R$ 1,774.17 ha-1, with hilling on 14-28-42 DAS. The greatest net income was R$ 2,684.10 ha-1 with no hilling and the smallest was R$ 2,166.81 ha-1 with hilling on 14-42 DAS. In the conditions that the experiment was carried out it was concluded that the cultivation with no hilling is recommended because it showed the smallest yield cost and the greatest net income.

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Author Biographies

Néstor Antonio Heredia Zárate, Universidade Federal da Grande Dourados

Professor Associado e Bolsista de Produtividade em Pesquisa do CNPq. Universidade Federal da Grande Dourados, Faculdade de Ciências Agrárias, C. Postal 533, 79804-970 – Dourados-MS.

Maria do Carmo Vieira, Universidade Federal da Grande Dourados

Professor Titular e Bolsista de Produtividade em Pesquisa do CNPq. Universidade Federal da Grande Dourados, Faculdade de Ciências Agrárias, C. Postal 533, 79804-970 – Dourados-MS

Thalita Martinhão de Sousa, Universidade Federal da Grande Dourados

Estudante de Graduação do Curso de Agronomia – Universidade Federal da Grande Dourados, C. Postal 533, 79804-970 Dourados-MS. Bolsista de Iniciação Científica do CNPq.

Diovany Doffinger Ramos, Universidade Federal da Grande Dourados

Bachaler em Ciência Biológicas, pós-graduando do curso de Mestrado em Agronomia – Universidade Federal da Grande Dourados. Bolsista da CAPES

Published

2009-07-30

How to Cite

Zárate, N. A. H., Vieira, M. do C., Sousa, T. M. de, & Ramos, D. D. (2009). Yield and net income of unripe corn in function of the hilling dates. Semina: Ciências Agrárias, 30(1), 95–100. https://doi.org/10.5433/1679-0359.2009v30n1p95

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