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Exam Review

Key Facts: EGEL Plus Ciencias Agrícolas Exam

202

Total multiple-choice questions on the official Ceneval EGEL Plus AGRO examination

CENEVAL, Guía para el sustentante EGEL Plus AGRO

9 hours

Total response time split across two 4.5-hour sessions

CENEVAL, Guía para el sustentante EGEL Plus AGRO

1000

Minimum Índice Ceneval score required to achieve Satisfactorio performance

CENEVAL, Guía para el sustentante EGEL Plus AGRO

3

Disciplinary areas: production systems, food safety and health, and development projects

CENEVAL, Estructuras EGEL Plus

Calculator

Non-programmable scientific calculator permitted during the examination

CENEVAL, Guía de aplicación en línea EGEL Plus

Ceneval's EGEL Plus AGRO is a 202-item, nine-hour Spanish exit exam covering three agricultural competency areas and transversal communication.

Sample EGEL Plus Ciencias Agrícolas Practice Questions

Try these sample questions to review concepts for the EGEL Plus Ciencias Agrícolas exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 90+ question experience with AI tutoring.

1An agronomist is planning a commercial grain maize (Zea mays) planting. The target plant population is 75,000 plants per hectare at harvest. The certified seed lot has a germination rate of 95%, a physical purity of 98%, and historical local field emergence is 90%. If the 1,000-seed weight is 320 grams, what is the required seeding rate in kilograms of seed per hectare (rounded to one decimal place)?
A.24.0 kg/ha
B.28.6 kg/ha
C.33.5 kg/ha
D.38.2 kg/ha
Explanation: To achieve 75,000 established plants/ha, the gross number of seeds required per hectare is calculated by dividing the target population by the product of germination, purity, and field emergence factors: 75,000 / (0.95 * 0.98 * 0.90) = 75,000 / 0.8379 = 89,509.5 seeds/ha. Multiplying the total seeds needed by the weight per seed (0.320 g/seed or 320 g / 1,000 seeds) gives: 89,509.5 * 0.00032 kg = 28.64 kg/ha, which rounds to 28.6 kg/ha.
2In cattle and other ruminants, what is the main source of metabolizable energy obtained from fibrous forages fermented in the rumen?
A.Glucose absorbed directly from the rumen after cellulose is fully hydrolysed
B.Volatile fatty acids (mainly acetate, propionate and butyrate) produced by rumen microbes and absorbed through the rumen wall
C.Free amino acids released from forage protein and absorbed in the reticulum
D.Lactic acid produced by the animal's own salivary enzymes
Explanation: Rumen bacteria, protozoa and fungi ferment cellulose, hemicellulose and starch into volatile fatty acids (acetate, propionate and butyrate), plus methane and CO2. The VFAs are absorbed mainly across the rumen wall and supply most of the ruminant's energy; propionate is the main precursor for hepatic gluconeogenesis.
3A soil test and crop demand curve recommend a total fertilization of 180 kg N/ha for irrigated bread wheat. At planting, the producer applied 150 kg/ha of diammonium phosphate (DAP, 18-46-0) into the seedbed. How much urea (46-0-0) in kg/ha must be applied at tillering as topdressing to satisfy the remaining nitrogen requirement?
A.153 kg/ha
B.267 kg/ha
C.333 kg/ha
D.391 kg/ha
Explanation: The 150 kg/ha of DAP (18% N) supplied 150 * 0.18 = 27 kg N/ha at planting. The deficit remaining to reach the 180 kg N/ha target is 180 - 27 = 153 kg N/ha. Since urea contains 46% N, the required mass of urea is 153 / 0.46 = 332.6 kg/ha, which rounds to 333 kg/ha.
4A tomato grower observes marginal chlorosis and subsequent necrosis ('leaf scorch') along the margins of the oldest lower leaves, while fruit development shows uneven ripening and yellow shoulder disorder. Which essential nutrient deficiency is responsible for these symptoms?
A.Nitrogen (N)
B.Potassium (K)
C.Iron (Fe)
D.Calcium (Ca)
Explanation: Potassium is a mobile phloem element, meaning deficiency symptoms first appear on older lower leaves as marginal chlorosis progressing inward to necrosis. In fruiting vegetables like tomato, potassium is critical for osmotic regulation, carbohydrate transport, and lycopene synthesis; its deficiency leads directly to blotchy ripening and yellow shoulders.
5An agronomic station tracks thermal accumulation for sweet corn using the standard Growing Degree Day (GDD) formula with a base temperature (Tbase) of 10°C and an upper cut-off temperature of 30°C. On a given day, the maximum temperature recorded was 34°C and the minimum was 14°C. How many GDD (°C-day) accumulated on that day?
A.11.0 GDD
B.12.0 GDD
C.14.0 GDD
D.16.5 GDD
Explanation: Using the standard modified single-sine or cut-off GDD formula, any daily maximum temperature above the upper threshold (30°C) is set to 30°C: Tmax = 30°C. The average effective temperature is (Tmax + Tmin) / 2 = (30 + 14) / 2 = 44 / 2 = 22°C. Subtracting the base temperature: GDD = 22 - 10 = 12.0 GDD (°C-day).
6A producer plans artificial insemination in a beef herd and must predict when cows that did not conceive will show heat again. What is the average length of the estrous cycle in cattle?
A.About 7 days
B.About 21 days
C.About 45 days
D.About 114 days
Explanation: The bovine estrous cycle averages about 21 days (normal range roughly 18 to 24 days), with standing heat lasting only several hours. Cows that do not conceive after insemination are therefore expected to return to heat about three weeks later, which guides heat detection and re-insemination.
7Using the Pearson square, a nutritionist mixes ground maize (9% crude protein) with soybean meal (44% crude protein) to obtain a 16% crude protein concentrate. What percentage of the mixture must be soybean meal?
A.16%
B.20%
C.28%
D.80%
Explanation: In the Pearson square, the parts of each ingredient are the differences between the target and the other ingredient: maize = 44 − 16 = 28 parts, soybean meal = 16 − 9 = 7 parts, for 35 parts in total. Soybean meal = 7/35 × 100 = 20%, and maize = 80%. Check: 0.80 × 9 + 0.20 × 44 = 7.2 + 8.8 = 16%.
8In commercial avocado (Persea americana) orchard design in Michoacán, 'Hass' is classified as a Type A floral cultivar. Why must Type B cultivars (such as 'Fuerte' or 'Zutano') be interplanted at a 10% to 15% ratio?
A.Type B trees serve as sacrificial trap crops for the avocado seed weevil (Conotrachelus aguacatae)
B.Type A flowers are functionally female in the morning and male in the afternoon of the next day, requiring Type B flowers that are female in the afternoon and male in the morning to provide viable pollen
C.Type B rootstocks secrete allelopathic flavonoids that suppress Phytophthora cinnamomi root rot in adjacent Hass rows
D.Type A cultivars are triploid and completely pollen-sterile, requiring diploid Type B pollen donors to trigger parthenocarpy
Explanation: Avocado exhibits protogynous, synchronous dichogamy. Type A cultivars open as functionally female (receptive pistil) on the morning of day 1 and reopen as functionally male (shedding pollen) on the afternoon of day 2. Type B cultivars open as female in the afternoon of day 1 and male the following morning. Interplanting Type B cultivars ensures that shedding male flowers coincide with receptive female flowers of Type A cultivars for honeybee-mediated cross-pollination.
9An agronomist establishes an open-field bell pepper (Capsicum annuum) crop with raised beds spaced 1.20 meters center-to-center. Each bed has a single drip line and a single row of plants spaced 0.25 meters apart along the row. What is the calculated plant density per hectare?
A.25,000 plants/ha
B.33,333 plants/ha
C.40,000 plants/ha
D.50,000 plants/ha
Explanation: Plant density is calculated as total area divided by the land area occupied per plant: Area per plant = bed spacing * plant spacing = 1.20 m * 0.25 m = 0.30 m². Density = 10,000 m²/ha / 0.30 m²/plant = 33,333.3 plants/ha.
10A broiler flock consumed 18,900 kg of feed and produced 10,500 kg of live weight gain. What is the feed conversion ratio (FCR)?
A.0.56
B.1.80
C.2.80
D.8.40
Explanation: Feed conversion ratio = feed consumed ÷ weight gained = 18,900 kg ÷ 10,500 kg = 1.80 kg of feed per kg of gain. A lower FCR means more efficient conversion of feed into live weight.

About the EGEL Plus Ciencias Agrícolas Exam

Independent EGEL Plus Ciencias Agrícolas practice by OpenExamPrep. The current official Spanish examination has 202 three-option items covering Sistemas de Producción Agropecuaria, Sanidad e Inocuidad Agroalimentaria, Proyectos de Desarrollo, and transversal language and communication. This English-language four-option MCQ bank is a study adaptation, not an official translation or format simulation. Stems and explanations are in English, but most language and communication items use Spanish sentences and passages, because Spanish usage is the skill being tested; a few reading items keep English passages as part of the adaptation.

Exam sponsor: CENEVAL (Centro Nacional de Evaluación para la Educación Superior). The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Assessment

202 three-option multiple-choice items: 142 disciplinary items (Sistemas de Producción Agropecuaria 50, Sanidad e Inocuidad Agroalimentaria 48, Proyectos de Desarrollo 44) and 60 transversal items in Comprensión Lectora and Redacción Indirecta.

Time Limit

Two sessions of 4.5 hours each (9 hours total response time)

Passing Score

Reported on the Índice Ceneval (700-1300): 1000-1149 Satisfactorio, 1150-1300 Sobresaliente, below 1000 Aún no satisfactorio

Exam / Certification Fees

MXN 1,885 for the 2026 national Examen desde casa; institutional administrations may charge a different amount

Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Official sources

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

50 of 142 disciplinary items

Sistemas de Producción Agropecuaria

Management of water and soil, livestock production, and crop production

48 of 142 disciplinary items

Sanidad e Inocuidad Agroalimentaria

Integrated pest and weed management, disease management, and food safety

44 of 142 disciplinary items

Proyectos de Desarrollo

Research and technology transfer, investment project formulation, and project evaluation and management

60 of 202 total items

Sección Transversal de Lenguaje y Comunicación

Technical reading comprehension (scientific articles, protocols) and indirect writing (grammar, spelling, lexical precision, cohesion)

Preparing for the EGEL Plus Ciencias Agrícolas Exam

What You Need to Know

  • Passing score: Reported on the Índice Ceneval (700-1300): 1000-1149 Satisfactorio, 1150-1300 Sobresaliente, below 1000 Aún no satisfactorio
  • Assessment: 202 three-option multiple-choice items: 142 disciplinary items (Sistemas de Producción Agropecuaria 50, Sanidad e Inocuidad Agroalimentaria 48, Proyectos de Desarrollo 44) and 60 transversal items in Comprensión Lectora and Redacción Indirecta.
  • Time limit: Two sessions of 4.5 hours each (9 hours total response time)
  • Exam / certification fees: MXN 1,885 for the 2026 national Examen desde casa; institutional administrations may charge a different amount Official sources

Using Our Practice Resources

  • Work through all 90 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

EGEL Plus Ciencias Agrícolas: Suggested Study Strategy

1Master quantitative agronomic formulas: practice calculating pure nutrient fertilization dosages (NPK), seed densities based on germination percentages, and irrigation depth requirements by hand with a basic scientific calculator.
2Review the biology and damage thresholds of key Mexican and regional agricultural pests (e.g., Spodoptera frugiperda, Helicoverpa zea, Bemisia tabaci) and modes of action of fungicides and insecticides according to FRAC and IRAC classifications.
3Understand soil physical and chemical parameters: review bulk density equations, cation exchange capacity (CEC), sodium adsorption ratio (SAR), and electrical conductivity (ECe) interpretations for saline and sodic soils.
4Study farm financial indicators: ensure fluency with gross margin, break-even point (punto de equilibrio), benefit-cost ratio (B/C), and supply chain traceability requirements.
5Practice technical reading comprehension and grammar mechanics in Spanish, as the transversal section accounts for 60 questions (30% of the official examination).

Frequently Asked Questions

What is the EGEL Plus Ciencias Agrícolas (EGEL Plus AGRO)?

The EGEL Plus AGRO is a standardized undergraduate exit examination administered in Mexico by CENEVAL (Centro Nacional de Evaluación para la Educación Superior). It evaluates the core competencies of graduates from Ingeniería Agronómica, Fitotecnia, and related agricultural sciences programs across Mexico for degree certification (titulación).

How many questions are on the official EGEL Plus AGRO and how is it structured?

The current guide specifies 202 three-option items and nine hours of response time in two 4.5-hour sessions: 142 disciplinary questions across three areas and 60 transversal language and communication questions.

How is the EGEL Plus scored and what is the passing threshold?

Scores are reported on the standardized Índice Ceneval scale ranging from 700 to 1300 points. Performance is classified as Aún no satisfactorio (700-999), Satisfactorio (1000-1149), or Sobresaliente (1150-1300). Many Mexican universities require Satisfactorio or Sobresaliente in the disciplinary section for degree graduation (titulación automática).

Are calculators permitted during the EGEL Plus Ciencias Agrícolas?

Yes. Ceneval regulations explicitly allow candidates taking the EGEL Plus AGRO to use a non-programmable scientific calculator during both sessions for quantitative calculations such as fertilization dosage, soil bulk density, seed planting rates, and irrigation hydraulics.

What delivery formats are offered by Ceneval for the exam?

The current guide lists paper administration, online administration at an institutional site, and remote administration through Examen desde casa.

Why is this practice bank in English when the official Ceneval exam is in Spanish?

OpenExamPrep provides this question bank as an independent English-language study adaptation, not an official translation. Disciplinary questions and all explanations are in English, while most language and communication items use Spanish sentences and passages so you can practice the Spanish grammar, spelling and reading skills that the transversal section measures. Official items have three options; this bank uses four.