scholarly journals The Influence of the Salts Contained in the Polluted Irrigation Water, on the Rice Plant.

1962 ◽  
Vol 30 (4) ◽  
pp. 291-294
Author(s):  
Tomoharu NAGAO ◽  
Kazuhiko KOGA
Keyword(s):  
Irrigation Water ◽  
Rice Plant

Relation between Temperature of Irrigation Water and Growth of Rice Plant

1930 ◽  
Vol 2 (2) ◽  
pp. 90-95
Author(s):  
MANTARO KONDO ◽  
TAMOTSU OKAMURA
Keyword(s):  
Irrigation Water ◽  
Rice Plant

Cultivation of rice for animal feed with circulated irrigation of treated municipal wastewater for enhanced nitrogen removal: comparison of cultivation systems feeding irrigation water upward and downward

2015 ◽  
Vol 72 (4) ◽  
pp. 579-584 ◽  
Author(s):  
A. Muramatsu ◽  
H. Ito ◽  
A. Sasaki ◽  
A. Kajihara ◽  
T. Watanabe
Keyword(s):  
Nitrogen Removal ◽  
Irrigation Water ◽  
Rice Plant ◽  
Municipal Wastewater ◽  
Animal Feed ◽  
Paddy Fields ◽  
Treated Wastewater ◽  
Human Consumption ◽  
Cultivation System ◽  
Treated Municipal Wastewater

To achieve enhanced nitrogen removal, we modified a cultivation system with circulated irrigation of treated municipal wastewater by using rice for animal feed instead of human consumption. The performance of this modified system was evaluated through a bench-scale experiment by comparing the direction of circulated irrigation (i.e. passing through paddy soil upward and downward). The modified system achieved more than three times higher nitrogen removal (3.2 g) than the system in which rice for human consumption was cultivated. The removal efficiency was higher than 99.5%, regardless of the direction of circulated irrigation. Nitrogen in the treated municipal wastewater was adsorbed by the rice plant in this cultivation system as effectively as chemical fertilizer used in normal paddy fields. Circulated irrigation increased the nitrogen released to the atmosphere, probably due to enhanced denitrification. Neither the circulation of irrigation water nor its direction affected the growth of the rice plant and the yield and quality of harvested rice. The yield of rice harvested in this system did not reach the target value in normal paddy fields. To increase this yield, a larger amount of treated wastewater should be applied to the system, considering the significant amount of nitrogen released to the atmosphere.

scholarly journals Kualitas Air dan Sumbangan Hara dari Air Irigasi Sidorejo

2018 ◽  
Vol 22 (2) ◽  
pp. 32
Author(s):  
Jaka Suyono ◽  
Sutopo Sutopo ◽  
Herry Widijanto
Keyword(s):  
Water Quality ◽  
Plant Growth ◽  
Crop Yield ◽  
Irrigation Water ◽  
Water Samples ◽  
Rice Plant ◽  
Growth And Yield ◽  
Central Java ◽  
Unfavorable Effect ◽  
Good Percentage

Irrigation water contributes several kind of nutrients to lowland rice and sometimes creates some problems. Research on irrigation water connected with fertilizers requirement and its effect on plant growth and crop yield was still limited. Water samples from Sidorejo irrigation in Central Java, at dry season in 2001, analyzed in laboratory its anion, cation, and water quality. The result showed that water quality from Sidorejo irrigation is suitable and did not give any unfavorable effect on the growth and yield of rice plant; which the values of SAR is very good, DHL and TDS were good-very good, Cl<sup>-</sup> is very good, percentage Na<sup>+</sup> is moderate-good, SO<sub>4</sub><sup>-</sup> is very good, and pH is normal. Irrigation water from Sidorejo irrigation were could supply 4,62 kg N/ha/season, 0,02 kg P/ha/season, 8,45 kg K/ha/season, 48,36 kg S/ha/season, 128,26 kg Ca/ha/season, and 34,89 kg Mg/ha/season respectively. The amount of nutrients supply have to be considered in the decision of fertilizer need

scholarly journals Relation of the Temperature of Irrigation Water and the Growth of Rice Plant : Part II

1931 ◽  
Vol 3 (1) ◽  
pp. 47-50
Author(s):  
Mantaro Kondo ◽  
Tamotsu Okamura
Keyword(s):  
Irrigation Water ◽  
Rice Plant ◽  
Plant Part

scholarly journals Influence of pH of Acid Irrigation Water on the Transfer of Elements into Rice Plant from Soils.

RADIOISOTOPES ◽  
1996 ◽  
Vol 45 (3) ◽  
pp. 166-175 ◽  
Author(s):  
Tomokazu MAENO ◽  
Yoshiyuki TANIZAKI
Keyword(s):  
Irrigation Water ◽  
Rice Plant ◽  
Acid Irrigation ◽  
Influence Of Ph

scholarly journals Allowable Limit of Saline Concentration in Irrigation Water for Secure Growth of Rice Plant

2002 ◽  
Vol 7 (2) ◽  
pp. 47-51
Author(s):  
Kunihiko Kitamura ◽  
Ichiro Kita ◽  
Eiji Ichion ◽  
Satoshi Oke ◽  
Masaharu Ohkado
Keyword(s):  
Irrigation Water ◽  
Rice Plant ◽  
Allowable Limit
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