Effects of Integrated Organic and Inorganic Fertilizers on Yield and Growth Parameters of Rice Varieties

Kyi Moe, Seinn Moh Moh, Aung Zaw Htwe, Yoshinori Kajihara, Takeo Yamakawa

Research output: Contribution to journalArticle

Abstract

We investigated the effects of integrated organic and inorganic fertilizers on the growth and yield of indica rice variety Manawthukha and japonica rice variety Genkitsukushi. In a split-plot design, the two rice varieties were assigned as main plot factors, and the integrated treatments were the subplot factors, including no-N fertilizer (N0), 50% chemical fertilizer (CF) (CF50), 100% CF (CF100), 50% CF + 50% poultry manure (PM) (CF50PM50), 50% CF + 50% cow manure (CM) (CF50CM50), and 50% CF + 50% compost (CP) (CF50CP50). CF100 was equivalent to N at 85 kg/hm2. Manure was applied based on the estimated mineralizable nitrogen (EMN) level, which is dependent on total N (%) of each manure type. Manawthukha rice plants were taller with higher tiller number and dry matter content. However, higher soil-plant analysis development (SPAD) values were measured in Genkitsukushi throughout the crop growth period, resulting in higher seed-setting rate (%) and greater yield. At the same N level, CF50PM50 application in both rice varieties resulted in higher SPAD values, plant height and tiller number than CF100. CF50PM50 containing total N more than 4% supplied synchronized N for the demands of the rice plants, resulting in maximum dry matter, yield and yield components. CF50CM50 and CF50CP50 treatments containing total N less than 4% resulted in lower yields which were similar to CF100. These results indicated that integrating organic and inorganic fertilizers enhanced growth parameters and yields of Manawthukha and Genkitsukushi, while reducing the dose of chemical fertilizer.

Original languageEnglish
Pages (from-to)309-318
Number of pages10
JournalRice Science
Volume26
Issue number5
DOIs
Publication statusPublished - Sep 1 2019

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Fertilizers
organic fertilizers
mineral fertilizers
fertilizers
rice
Manure
Growth
animal manures
Plant Development
Soil
poultry manure
cattle manure
dry matter content
yield components
composts
Oryza
soil
nitrogen fertilizers
Poultry
Seeds

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Agronomy and Crop Science
  • Plant Science

Cite this

Effects of Integrated Organic and Inorganic Fertilizers on Yield and Growth Parameters of Rice Varieties. / Moe, Kyi; Moh, Seinn Moh; Htwe, Aung Zaw; Kajihara, Yoshinori; Yamakawa, Takeo.

In: Rice Science, Vol. 26, No. 5, 01.09.2019, p. 309-318.

Research output: Contribution to journalArticle

Moe, Kyi ; Moh, Seinn Moh ; Htwe, Aung Zaw ; Kajihara, Yoshinori ; Yamakawa, Takeo. / Effects of Integrated Organic and Inorganic Fertilizers on Yield and Growth Parameters of Rice Varieties. In: Rice Science. 2019 ; Vol. 26, No. 5. pp. 309-318.
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