Evaluation of Nitrate-Nitrogen Leaching From Lysimeter-Grown Bearing Apple Trees

Soil Science ◽  
2011 ◽  
Vol 176 (6) ◽  
pp. 280-287 ◽  
Author(s):  
Moreno Toselli ◽  
Ronald L. Perry ◽  
James A. Flore
Keyword(s):  
Nitrate Nitrogen ◽  
Nitrogen Leaching ◽  
Apple Trees

Numerical Simulation on Characteristics of Nitrate Nitrogen Leaching under Different Irrigation Levels

2014 ◽  
Vol 662 ◽  
pp. 153-159
Author(s):  
Shu Hua Ji ◽  
Jiang Yang Deng
Keyword(s):  
Numerical Simulation ◽  
Simulation Experiment ◽  
Nitrate Nitrogen ◽  
Soil Column ◽  
Nitrogen Leaching ◽  
Intensity Level ◽  
Irrigation Amount ◽  
Irrigation Level ◽  
Irrigation Intensity ◽  
Irrigation Levels

The characteristics of nitrate nitrogen leaching in soil under different irrigation levels were studied by soil column simulation experiment with numerical simulation done using LEACHM model taking nitrate nitrogen leaching under different irrigation levels as the research background. In sandy soils, an irrigation amount of 300 mm would cause nitrate nitrogen to leach downward 75~150 cm, with a leaching amount of 10~30.7 kg/ha; and an irrigation amount of 700 mm would make nitrate nitrogen leach downward about 3.5 m, with a leaching amount of 98 kg/ha. Research data showed that the amount of nitrate nitrogen leaching was positively correlated with the irrigation intensity level, irrigation level directly determined the amount of nitrate nitrogen leaching, and influenced its leaching depth.

Effect of nitrate nitrogen leaching of paddy field based on Pig manure returning soil in the Yellow River irrigation area of Ningxia

2014 ◽  
Vol 34 (16) ◽  
Author(s):  
杨世琦 YANG Shiqi ◽  
王永生 WANG Yongsheng ◽  
张爱平 ZHANG Aiping ◽  
杨正礼 YANG Zhengli
Keyword(s):  
Paddy Field ◽  
Nitrate Nitrogen ◽  
Yellow River ◽  
Nitrogen Leaching ◽  
Pig Manure ◽  
The Yellow River ◽  
Irrigation Area
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