Energy use of sugarcane (Saccharum officinarum L.) grown in various nutrient supply options

Issue Date

4-2013

Abstract

In cooperation with the National Institute of Molecular Biology and Biotechnology (BIOTECH-UPLB), a field experiment was conducted to: 1) evaluate the effects on sugar yield of varied nutrient supply options, and 2) calculate the energy usage and energy efficiency indicators of sugarcane grown under these nutrient supply options. The energy costs to produce 1 ton cane were highest when canes were fertilized with 300 kg N and 300 kg N + Bio -N® at 10.05 and 10.85 L Diesel Oil Equivalent per Ton Cane (LDOE/TC), respectively. Farm inputs accounted for 42% of the energy cost, and 93.7% of these comes from urea. The main driver of the energy bill in cane production up to harvesting and hauling to the mill is the fertilizer N input. The highest energy efficiency (6.87) was obtained when no N fertilizer was applied while lowest (4.21) when N fertilizer was applied at 300 kg haֿ¹ + Bio-N®. The reduction in N application from ֿ300 kg N ha¹ to 150 kg N haֿ¹ reduce the energy use by 14% . Bio-N® inoculation in combination with different fertilizer levels, did not increase sugar yields. A further study on the effects of Bio-Nֿ® in a low soil nutrient supply and sugar cane ratoons is recommended. The effect of Bio N® on the ratoon canes is still not clear.

Source or Periodical Title

Philippine Journal of Crop Science

ISSN

0115-463x

Volume

38

Issue

1

Page

43-51

Document Type

Article

Frequency

tri-quarterly

Physical Description

tables

Language

English

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