Research on soil moisture dynamic under negative pressure irrigation: Research on soil moisture dynamic under negative pressure irrigation

2016 ◽  
pp. 161-164
Author(s):  
Xiande Shi ◽  
Qingyun Zhou ◽  
Yan Wang ◽  
Chengyue Cao ◽  
Guoyu Jin ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Negative Pressure ◽  
Irrigation Research

scholarly journals Monitoring of soil moisture and irrigation forecast under the condition of drip irrigation in greenhouse

2019 ◽  
Vol 136 ◽  
pp. 07019
Author(s):  
Yuan Wang ◽  
Yangren Wang ◽  
Hao Wang ◽  
Chengqi Gong
Keyword(s):  
Soil Moisture ◽  
Moisture Content ◽  
Correlation Coefficient ◽  
Drip Irrigation ◽  
Error Probability ◽  
Soil Moisture Content ◽  
Small Error ◽  
Prediction Errors ◽  
The Mean ◽  
Irrigation Research

The accurate prediction of the soil moisture in greenhouse can improve the accuracy of irrigation forecast, thus saving water and increasing production. In this paper, the monitoring data were obtained from the greenhouse in Agricultural Demonstration Park of Northland Spring, Wuqing District, Tianjin. The soil moisture was predicted based on the GM (1,1) model, and the effect of water-saving and increased production was tested with the results of the economic irrigation research in the same area. The results show that the GM (1,1) model has a higher accuracy of soil moisture prediction. The correlation coefficient (R2) of the predicted value and the measured value is higher than 0.9; the small error probability P is 1; the mean relative prediction errors are all less than 0.1. Therefore, the GM (1,1) model can be used to predict soil moisture content.

The Application of High-Speed Computers in Irrigation Research

1959 ◽  
Vol 40 (11) ◽  
pp. 566-570 ◽  
Author(s):  
Howard H. Engelbrecht
Keyword(s):  
Soil Moisture ◽  
Irrigation Water ◽  
High Speed ◽  
Potential Evapotranspiration ◽  
Basic Data ◽  
Soil Moisture Accounting ◽  
Basic Purpose ◽  
Irrigation Research

An IBM–650 program has been developed for the basic purpose of evaluating and comparing Thornthwaite and Penman potential evapotranspiration values and various methods for soil-moisture accounting. To the extent that the existing potential evapotranspiration formulas and soil-moisture accounting procedures are acceptable, the IBM–650 program supplies basic data for drought probabilities or irrigation-water probability studies.

Blood Flow, Negative Pressure, and Hemolysis During Hemodialysis

1999 ◽  
Vol 3 (1) ◽  
pp. 45-50
Author(s):  
Zbylut J. Twardowski ◽  
Jimmy D. Haynie ◽  
Harold L. Moore
Keyword(s):  
Blood Flow ◽  
Negative Pressure

Negative pressure therapy – How many dressing changes are enough?

2012 ◽  
Vol 60 (S 01) ◽  
Author(s):  
S Raab ◽  
T Weimann ◽  
W Sienel ◽  
L Lampl ◽  
M Beyer
Keyword(s):  
Negative Pressure ◽  
Negative Pressure Therapy ◽  
Pressure Therapy

Prevention of poststernotomy wound infections in obese patients by negative pressure wound therapy

2013 ◽  
Vol 61 (S 01) ◽  
Author(s):  
O Grauhan ◽  
A Navasardyan ◽  
M Hofmann ◽  
P Müller ◽  
J Stein ◽  
...  
Keyword(s):  
Negative Pressure ◽  
Negative Pressure Wound Therapy ◽  
Obese Patients ◽  
Wound Infections ◽  
Wound Therapy
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