Revised Statement of Work.pdf
PDF 138 KB Posted
- Attached to
- SAP Flow Sensors Federal contract opportunity
- Solicitation number
- 12505B23Q0299
About this file
This statement of work outlines requirements for sap flow sensors to measure canopy transpiration in soybean plants. The Department of Agriculture Agricultural Research Service Midwest Area is seeking 34 sap flow sensors through solicitation number 12505B23Q0299 to quantify water flux through stems measuring 5 to 7 mm in diameter. The sensors must be compatible with Dynamax FLOW32 logger systems and delivered to Justin McGrath at the University of Illinois at Urbana-Champaign within 30 calendar days of award. The objective is to estimate canopy transpiration and study effects of vapor pressure deficit changes on nutrient acquisition in crop plants.
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| File | Type | Posted |
|---|---|---|
| Provisions and Clauses Full and Open.pdf | ||
| Provisions and Clauses.pdf | ||
| Statement of Work.pdf |
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Text version
Statement of Work (SOW)
Project: Canopy transpiration measurements in crop plants
GENERAL INFORMATION
1.0 Scope of Work: To measure sap flux through soybean plants to estimate canopy transpiration rate. Our objective is to quantify the role of transpiration in nutrient acquisition and study effects of predicted vapor pressure deficit changes.
2.0 Background: Leaf level photosynthesis can be measured with gas exchange sensors. This is useful for understanding how leaves individually respond to the environment but scaling from leaves to the entire canopy requires many assumptions and thus gives imprecise estimates. Sap flow sensors placed at the base of plants measure the total water flux through a single plant, and by measuring several plants in an area, canopy transpiration can be more precisely estimated.
CONTRACTOR REQUIREMENTS
3.0 Technical Requirements/Tasks:
• The sensors should be suitable for quantification of sap flux through stems of living soybean plants in an agricultural field.
• The sensors must work with Dynamax FLOW32 logger systems.
• There must be 34 sensors capable of measuring stems with diameters of 5 to 7 mm.
4.0 Deliverables / Schedule:
The equipment should be delivered to the address below within 30 calendar days from date of receipt.
Justin McGrath 1201 W Gregory Dr, Room 197, Urbana, IL 61801
| CONTRACTOR REQUIREMENTS |
| 3.0 Technical Requirements/Tasks: |
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