The effect of indigenous organic fertilizer on paddy field methane emissions

This research studied the effect of the change in function from paddy field to dry land on the soil fertility index. The research was conducted in Girimarto Sub-district, Wonogiri District, in the Province of Central Java. The five stages of the research were: determination of Land Mapping Units in areas with a change in land use; field survey; laboratory analysis; determination of Minimum Data Sets (MDSs) or Minimum Soil Fertility Index (MSFI); analysis of Soil Fertility Index (SFI). The research results show that the change in function of 231 ha of land in Girimarto Sub-district is due to the topographical factor of the mountain region and the shortage of water. This change in land function has caused an increase in the soil fertility index. Soil fertility in paddy fields is classed as moderate but after undergoing a change in function to dry land, its classification increases to moderate-high. The increase in soil fertility index of dry land is due to the fact that farming patterns on dry land use more animal manure, which has a long-term residual effect on organic matter content. In order to maintain and improve the fertility of paddy field soil, it is necessary to add organic fertilizer as well as inorganic fertilizer.

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Less yield reduction induced by high temperature in a paddy field under organic fertilizer management in Tochigi prefecture

Journal of Agricultural Meteorology ◽

10.2480/agrmet.67.4.7 ◽

2011 ◽

Vol 67 (4) ◽

pp. 249-258 ◽

Cited By ~ 2

Author(s):

Atsuko TANAKA ◽

Kazunobu TORIYAMA ◽

Kazuhiko KOBAYASHI

Keyword(s):

High Temperature ◽

Paddy Field ◽

Organic Fertilizer ◽

Yield Reduction ◽

Fertilizer Management

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Application of Organic Fertilizer Tithonia Plus to Control Iron Toxicity and Reduce Commercial Fertilizer Application on New Paddy Field

Journal of Tropical Soils ◽

10.5400/jts.2012.v17i2.135-142 ◽

2012 ◽

Vol 17 (2) ◽

pp. 135

Author(s):

Nurhajati Hakim ◽

Agustian . ◽

Yanti Mala

Keyword(s):

Rice Straw ◽

Paddy Field ◽

Organic Fertilizer ◽

Fertilizer Application ◽

Iron Toxicity ◽

Rice Production ◽

Commercial Fertilizer ◽

West Sumatra ◽

Main Plot ◽

And Control

Ferrous toxicity is a one of the problems most often found in lowland rice systems in tropical and sub-tropical regionespecially in new paddy field (NPF) on Ultisols and Oxisols. Flooding during rice growth creates a chemicallyreduced state in soils causing reduction of insoluble (Fe3+) to soluble (Fe2+) form even at excessive level. ExcessiveFe2+ uptake is eventually the main cause of iron toxicity. The purpose of this study was to find an appropriateformulation of organic fertilizer Tithonia plus (OFTP) to control the iron toxicity, reduce the application of commercialfertilizers (CF) and increase rice production at various ages of NPF. The field experiment was conducted in farmerfields in Sitiung, Koto Baru sub-district, Dharmasraya district of West Sumatra province. Experimental design usedwas a factorial 2 x 6 in a split plot design. The main plot (A), the age of the opening of NPF were: 0 year;and 2 years;Subplot (B) a formulation of OFTP were: 2 Mg Tithonia ha-1 + 75% of CF; 2 Mg Tithonia ha-1 + 5 Mg rice strawha-1 + 50% of CF; 4 Mg Tithonia ha-1 + 25% of CF and three treatmens without Tithonia i.e. 5 Mg rice straw ha-1 +75% of CF; 2 Mg animal cow manure ha-1 + 75% of CF, and 100% of CF. Liming with 500 kg CaCO3 ha-1were appliedfor all treatments. The results showed the use of OFTP increased the nutrients availability such as N, P, and K onNPF and control the iron toxicity. The appropriate formulation of OFTP to control the iron toxicity and reduced theapplication of chemical fertilizer for higher rice production at NPF were two options: (1) 2 Mg of Tithonia ha-1 + 5 Mgof rice straw ha-1 + 50% of commercial fertilizers; and (2) 2 Mg of Tithonia ha-1 + 75% of commercial fertilizers. In thiscase the reducing of commercial fertilizers application were 50% and 25%, respectively.[How to Cite: Hakim N, Agustian and Y Mala. 2012. Application of Organic Fertilizer Tithonia Plus to Control Iron Toxicity and Reduce Commercial Fertilizer Application on New Paddy Field. J Trop Soils 17: 135-142. Doi: 10.5400/jts.2012.17.2.135][Permalink/DOI: www.dx.doi.org/10.5400/jts.2012.17.2.135]

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Responses of methane emissions and rice yield to applications of biochar and straw in a paddy field

Journal of Soils and Sediments ◽

10.1007/s11368-013-0732-0 ◽

2013 ◽

Vol 13 (8) ◽

pp. 1450-1460 ◽

Cited By ~ 82

Author(s):

Da Dong ◽

Min Yang ◽

Cheng Wang ◽

Hailong Wang ◽

Yi Li ◽

...

Keyword(s):

Paddy Field ◽

Rice Yield ◽

Methane Emissions

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Effects of Different Fertilization Methods on Organic Nitrogen Components in Paddy Soil

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.955-959.1116 ◽

2014 ◽

Vol 955-959 ◽

pp. 1116-1119

Author(s):

Ji Wang ◽

Yun Jiang Liang ◽

Min Jie Fu ◽

Ze Yu Guan

Keyword(s):

Significant Influence ◽

Paddy Field ◽

Organic Nitrogen ◽

Organic Fertilizer ◽

Total Acid ◽

Total Organic Nitrogen ◽

Total N ◽

Soil Organic Nitrogen ◽

Hydrolysable N

In order to reveal characteristics of soil organic nitrogen components under long-term different fertilization methods on paddy field, selected 7 typical paddy field of Korean Autonomous Prefecture of Yanbian of Jilin Province, collected soil samples of 0 to 10 cm and 10 to 20 cm, analyzed total nitrogen content of soil and each component of organic nitrogen. Results showed that effects of different fertilization methods on content of soil total acid hydrolysable N (TAHN), amino acid N (AAN), ammonia sugar N (ASN), acid-hydrolysable unknown N (AUN) in 0 to 10 cm soil had significant influence or more, and non hydrolysable N (NHN), AAN and ASN accounted for proportion of total N (TN) had significant influence. Effects soil organic nitrogen components in 10 to 20 cm soil had not significant influence. Applying organic fertilizer was beneficial to improve soil total organic nitrogen, mainly by improving content of AAN and ASN; Long-term application inorganic fertilizer led to NHN accumulation, but applying organic fertilizer was beneficial to NHN transformation, increase content of AAN; TAHN, NHN, AN, AAN, ASN content in 0 to 10 cm soil were slightly higher than that in 10 to 20 cm soil, and content of HUN had no obvious regularity between two soil layers.

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EFFECT OF AMELIORANT ON GROWTH AND YIELD OF RICE AT TIDAL PADDY FIELD

Indonesian Journal of Agricultural Science ◽

10.21082/ijas.v22n2.2021.p85-91 ◽

2021 ◽

Vol 22 (2) ◽

pp. 85

Author(s):

Sri Minarsih ◽

Sri Karyaningsih ◽

Samijan Samijan ◽

Agus Supriyo ◽

Yulis Hindarwati ◽

...

Keyword(s):

Oryza Sativa ◽

Humic Acid ◽

Paddy Field ◽

Organic Fertilizer ◽

Paddy Fields ◽

Growth And Yield ◽

Food Crop ◽

Rice Varieties ◽

Main Plot ◽

Plot Design

<p>Rice (<em>Oryza sativa </em>L.) is the most important and strategic food crop in Indonesia, but low productivity in tidal paddy fields is a serious problem that must be overcome. The application of ameliorant would be worthy to increase the growth and yield of rice in tidal paddy fields. The study aimed to investigate the effect of ameliorant application on growth and yield of rice varieties in tidal paddy fields. The study was arranged in a split plot design with five replications. Rice varieties tested were Inpari 34, Dendang, Inpara 9, Inpari 35, and Ciherang as the main plot, and ameliorant types studied were humic acid, gypsum, zeolite, and organic fertilizer as the subplot. The results showed that the use of different rice varieties and amelioran types significantly increased the growth and yield of rice. Inpara 9 produced 7.6 t.ha-1 dry milled grain (DMG) or increased by 33.3% compared to Ciherang variety. Humic acid application at 25 kg ha-1 increased grain yield by 21.3% higher than that without ameliorant treatment. The best treatment to increase the growth and yield of rice in tidal paddy field was a combination of humic acid 25 kg.ha-1 and Inpari 34 which produced the DMG of 8.6 t ha-1 or 41% higher compared to Ciherang without ameliorant.</p>

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