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Topics

MushroomFarming / guide

Case run

Follow mycelial development into casing while protecting structure, moisture and uniformity.

Practical explanation + detailed referenceSources & review ↓
White button mushrooms on casing soil in long shelf beds inside a commercial cropping room near Eger, Hungary.
Real cultivation photograph. Read its source for location and context; it is not a universal operating specification.Andrew Bossi · CC BY-SA 2.5View full photograph ↗
On this pageChoose a section, or keep reading below

Read this in the full guide: Run a Button mushroom crop from receipt to room reset →

Understand the topic

Start with the explanation.

Case run is a transition at the compost-casing boundary. Observations should describe spatial pattern, depth and crop history rather than relying on surface whiteness as a single readiness test.

Part 01

Why this matters

Case run links casing application with the later environmental transition into pinning.

Illustration of compost receipt and a probe measurement.
AI teaching illustrationReceive the right compost

The delivered compost stage determines the work still needed. Phase II and Phase III deliveries require different handovers.

Conceptual explanation—not a real farm photograph, diagnostic finding or construction specification.
Part 02

What to look for

Build a record before making a change.

  • Mycelial distribution into casing
  • Moisture through depth
  • Surface and subsurface structure
  • Zone-to-zone differences
Part 03

How to make the next decision

Use the observation to narrow a decision, then verify the response.

  • Protect or correct uniformity
  • Time interventions by crop response
  • Avoid sealing the surface
  • Prepare a deliberate pinning transition
Part 04

What to check before moving on

This topic cannot be interpreted in isolation.

  • Casing application
  • Water history
  • Compost activity
  • Room climate
  • Hygiene
Part 05

On the farm

Start in the room with mycelial distribution into casing and moisture through depth. Record location, stage and recent events before changing the process.

Part 06

The technical explanation

The technical model joins casing application, water history, compost activity. Any operating value must be attached to a registered parameter, measurement location and applicable condition.

Part 07

What the evidence can tell you

This page is grounded in: Physicochemical characterization of casing materials used in Button Mushroom cultivation; Mushroom Cultivation, Marketing and Consumption. Source provenance does not remove the need to check stage, system, date and local applicability.

Illustration of careful Button mushroom harvesting into clean food-contact containers.
AI teaching illustrationHarvest and reset

Picking, grading, packing and room reset are connected tasks. A strong flush can still lose value through poor handling or delayed dispatch.

Conceptual explanation—not a real farm photograph, diagnostic finding or construction specification.

Go deeper

Technical reference, records and tools.

Detailed crop-stage information, parameters, diagrams and specialist tools are kept together below. This material retains its source conditions and review limits.

Open the complete technical reference

Button Mushroom · cultivation stage

Case run

Agaricus bisporus

Follow mycelial development into casing while protecting structure, moisture and uniformity.

Publication
Public editorial page
External review
Not yet recorded · needed from Button Mushroom technical reviewer
Updated
2026-08-22
Evidence records
2
A few button mushrooms and pinheads emerging from black casing soil in compost bags, Tamil Nadu (uploaded by a TNAU student); dim and slightly soft.
Button mushrooms on casing soil in compost bags. Photo: Pavimps, CC BY-SA 4.0. Source

Button mushroom crop cycle

  1. CompostDay 0Pasteurised, ammonia below 10 ppm
  2. Spawn run12-15 days22-25 °C in the dark
  3. CasingDay 153-4 cm layer, pH 7-7.5
  4. Case run7-10 daysMycelium reaches the surface
  5. PinningDay 25Air the room, 15-18 °C
  6. FlushesDay 32-70Three flushes, 7-10 days apart
Picture → explanation → field task

A crop-room round

AI-generated educational illustrations. Not actual farm photographs, diagnostic evidence or construction specifications.

Generated illustration of gentle water application to a bare casing surface before mushrooms emerge.
02

Assess casing before watering

This scene shows casing without developing fruit bodies. Water needs depend on stage and material condition. The picture does not specify a quantity or a universal watering schedule.

Try this on your farm

Check the approved crop protocol and the actual casing condition before deciding how much to apply. Record the application.

Generated illustration of a grower recording different pin densities along mushroom beds.
03

Compare the pinning pattern

The bed does not develop uniformly at every position. Differences can involve inputs, water or room conditions. A patch is an observation, not a diagnosis.

Try this on your farm

Compare fixed locations over successive rounds. Photograph the same patch and record nearby readings before changing settings.

Stage11

Crop-stage dashboard

Case run

Biological state
Mycelium develops through the casing interface
Operator objective
Create uniform biological readiness for initiation
Handoff
Begin pinning transition from mapped crop readiness
ObserveDevelopment patternmoisturesurface structure
Depends onCasing qualitywater historycompost condition

Quick orientation

Case run is a transition at the compost-casing boundary. Observations should describe spatial pattern, depth and crop history rather than relying on surface whiteness as a single readiness test.

01

System role

Case run links casing application with the later environmental transition into pinning.

02

What to observe

Build a record before making a change.

  • Mycelial distribution into casing
  • Moisture through depth
  • Surface and subsurface structure
  • Zone-to-zone differences

03

Decision framework

Use the observation to narrow a decision, then verify the response.

  • Protect or correct uniformity
  • Time interventions by crop response
  • Avoid sealing the surface
  • Prepare a deliberate pinning transition

04

Dependencies and handoffs

This topic cannot be interpreted in isolation.

  • Casing application
  • Water history
  • Compost activity
  • Room climate
  • Hygiene

05

Practical layer

Start in the room with mycelial distribution into casing and moisture through depth. Record location, stage and recent events before changing the process.

06

Technical layer

The technical model joins casing application, water history, compost activity. Any operating value must be attached to a registered parameter, measurement location and applicable condition.

07

Evidence boundary

This page is grounded in: Physicochemical characterization of casing materials used in Button Mushroom cultivation; Mushroom Cultivation, Marketing and Consumption. Source provenance does not remove the need to check stage, system, date and local applicability.

Progressive depth

Go deeper without losing the field question.

PracticalWhat to notice in the room
  • Mycelial distribution into casing
  • Moisture through depth
  • Surface and subsurface structure
  • Zone-to-zone differences
TechnicalHow the interacting system is interpreted
  • Casing application
  • Water history
  • Compost activity
  • Room climate
  • Hygiene
ResearchWhich evidence records govern this page
  • ICAR-MR-CASING-2025
  • ICAR-DMR-CULTIVATION-MANUAL

Technical registry

The numbers for this stage, with their source.

Values are published from ICAR-DMR guidance with the stage and measuring point they apply to. A parameter still marked pending has no published Indian value yet.

BUTTON.CASING.MOISTURE_STATUS

Casing moisture at pinning

48 to 52 % moisture

ICAR-DMR gives 48 to 52 percent casing moisture at pinning; the layer itself is 3 to 4 cm deep.

Stage
Casing and case run
Measured at
Representative depth through the casing layer
Crop meaning
Water availability at the crop surface when pins form.
Applicable conditions
Casing material; Depth; Sampling method
published sourced
BUTTON.CLIMATE.COMPOST_TEMPERATURE

Compost temperature

20 to 25 °C

24 to 25 °C during spawn run, easing to about 20 °C once the room is aired for pinning.

Stage
Colonisation and cropping
Measured at
Within compost at defined bed positions
Crop meaning
Crop heat, which can sit above room-air readings.
Applicable conditions
Stage; Crop load; Probe placement
published sourced
Evidence and review record2 mapped sources

Sources support the page architecture and conceptual guidance. Technical values remain governed separately in the Button registry.

Tier C · research

Physicochemical characterization of casing materials used in Button Mushroom cultivation

Casing function and material-characterization context. Trial findings remain bounded to the study design.

Accessed
2026-08-22
Publisher
Mushroom Research, ICAR
Open original source
Tier A · foundational

Mushroom Cultivation, Marketing and Consumption

Broad cultivation, post-harvest and market context. Values are not promoted without page-level review.

Accessed
2026-08-22
Publisher
ICAR-Directorate of Mushroom Research
Open original source

Read the evidence

Sources & review.

Editorial update: 2026-08-22. Independent technical review is not recorded for this entry.

  1. Physicochemical characterization of casing materials used in Button Mushroom cultivation ↗

    Mushroom Research, ICAR · 2025

  2. Mushroom Cultivation, Marketing and Consumption ↗

    ICAR-Directorate of Mushroom Research

Reading a source is not the same as applying its instructions to every farm. Confirm species, strain, crop stage, system, region and publication date. Old chemical recommendations are not current-use instructions.

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