Mulching effects and the soil organic matter dynamics in crushed bamboo utilization at the farmland

Shojiro Omoto, Atsushi Marui, Yoshiyuki Shinogi

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The objective of this research was to evaluate the effect of covering the soil surface with the crushed bamboo and to simulate the soil organic matter dynamics after the crushed bamboo was put into the soil at farmland. The first experiments in the phytotron (25 °C, 70%) showed that covering the soil with the 2 cm and 4 cm thick crushed bamboo prevented the decrease of the soil water content as well as vinyl mulching, and reduced the total amount of the irrigated water 20% less than no mulching. In addition, the crushed bamboo mulching kept the soil temperature lower than the others and made the electrical conductivity in the soil high just after irrigation. The second experiment showed that the crushed bamboo mulching applied the potassium to the crown daises so that the potassium content of the crown daises increased. Finally, the soil organic matter dynamics was simulated with the CENTURY model. It was predicted that if the 2 cm thick crushed bamboo was put into the soil, the most was decomposed in 20 years, and when it was put into the soil every year, the total amount of the soil organic carbon increased 7000 g/m 2 in 20 years, which made the C: N ratio keep 20. In this simulation, it seemed that the crushed bamboo of which thickness was less than 2 cm can be applied.

Original languageEnglish
Pages (from-to)373-377
Number of pages5
JournalJournal of the Faculty of Agriculture, Kyushu University
Volume56
Issue number2
Publication statusPublished - Sep 2011

Fingerprint

mulching
bamboos
agricultural land
soil organic matter
Soil
soil
potassium
Crowns
Potassium
soil organic carbon
carbon nitrogen ratio
soil temperature
electrical conductivity
soil water content
Electric Conductivity
Water
irrigation
Carbon
Temperature
water

All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science
  • Biotechnology

Cite this

Mulching effects and the soil organic matter dynamics in crushed bamboo utilization at the farmland. / Omoto, Shojiro; Marui, Atsushi; Shinogi, Yoshiyuki.

In: Journal of the Faculty of Agriculture, Kyushu University, Vol. 56, No. 2, 09.2011, p. 373-377.

Research output: Contribution to journalArticle

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