Agricultural, soil and food science
Agricultural science studies crop and livestock production, soil processes and food systems. It explains how weather, pests, soil degradation and markets combine to affect yields and food availability. Food Nexus stewards this page for the Nexus Consortium.
- 01In briefThe short answer
- 02The methodWhat agricultural, soil and food science covers
- 03Reference practiceAgricultural evidence spans field trials, crop models and statistics
- 04In systemic risk workFrom yield to access
- 05Applied inPlatforms that apply this method
- 06StewardshipWho maintains this page
- 07Key termsTerms used on this page
GCRI · Institution · service level R0
The short answer.
Agricultural science studies crop and livestock production, soil processes and food systems. Agricultural assessment supports early warning of food shortages, crop insurance design and adaptation planning. In the Nexus Consortium, Food Nexus stewards its canonical page, and 3 other platforms apply it, including Biotechnology and Biosecurity as well as Climate and Nature Governance.
Water security in Peru.
Rivers, lakes and how far each division sits from mapped surface water, shown for Peru as an example geography for this subject.
What agricultural, soil and food science covers.
- 01
Core methods
crop growth simulation; soil fertility and erosion assessment; field trials; pest and disease surveillance; yield gap analysis; food supply chain analysis.
- 02
Data and instruments
experimental field stations; soil surveys and laboratory analysis; agricultural census and yield statistics; satellite vegetation indices; weather station networks.
- 03
Validation
Crop models are compared with observed yields across sites and seasons. Replicated field trials and multi-model intercomparisons test robustness.
- 04
Limits
Models often omit management practices, pests and extreme events that drive actual losses. Smallholder systems are underrepresented in data.
- 05
Use in risk decisions
Agricultural assessment supports early warning of food shortages, crop insurance design and adaptation planning. It connects climate, water and trade risks to nutrition and price stability.
Agricultural evidence spans field trials, crop models and statistics.
| Reference | What it sets |
|---|---|
| FAOSTAT | Production, area, yield and trade by crop and country |
| GEOGLAM Crop Monitor | Consensus crop condition reports from satellite and ground information |
| AgMIP (Agricultural Model Intercomparison and Improvement Project) | Crop and economic model intercomparison under climate scenarios |
| IPC | Classification of food insecurity outcomes |
From yield to access.
A yield shock matters for risk through prices, incomes and nutrition. Agricultural science supplies the first link: how heat, drought, pests and management change yields. The common mistake in systemic work is to stop at production; the same harvest loss can be absorbed by stocks and trade in one year and cause a crisis in another.
- Crop models disagree most under heat extremes and CO2 effects; use ensembles.
- Report whether yields are irrigated or rain-fed, since they respond differently to drought.
- Link yields to stocks-to-use ratios and trade, not only to production totals.
- Applications on Food Nexus.
Platforms that apply this method.
Who maintains this page.
Food Nexus stewards agricultural, soil and food science: it keeps this description current and reviews how the method is applied across the platforms.
Terms used on this page.
Each term as this page uses it. Where a standard-setting body defines the term, the wording follows that body.
| Term | Definition |
|---|---|
| Index insurance | Insurance that pays on a measured index, such as rainfall or area yield, rather than on individual losses. |
| Yield variability | The year-to-year variation in crop yields that drives repayment risk. |
| Land degradation | Long-term loss of land productivity from erosion, salinity, nutrient loss or vegetation change. |
| Crop simulation model | A model that simulates crop growth from weather, soil and management inputs to estimate yield, such as DSSAT or APSIM. |
Where this page's references lead.
The bodies and documents this page is read against. Status and editions change; each link goes to the issuing body.
Where this page leads across the Consortium.
- Applied inGCRIAgricultural, soil and food science at Food NexusApplied in Food Nexus.
- Applied inGCRIAgricultural, soil and food science for biotechnology and biosecurityApplied in Biotechnology and Biosecurity.
- Applied inGRFAgricultural, soil and food science for climate and nature governanceApplied in Climate and Nature Governance.
- Applied inGRAAgricultural science for development financeApplied in Development Finance Nexus.
Questions and answers.
Why does one institution host every method page?
How do I suggest a correction to a method page?
Around GCRI.
Start with an enquiry.
The current service level is R0: information and enquiries. An enquiry receives a reference and names the next step; applications, payments, compute allocations and registrations open only when their team, terms and review capacity exist.