Alexander Tsarev
Mushroom industry

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Gypsum


Phosphor gypsum
It’s hard to overestimate the role gypsum plays in the compost preparation process. Even though it’s used in relatively small amounts — about 60 kg for a ton of compost, gypsum plays a decision role in the formation of the compost’s structure and pH level. The pH level, in turn, determines the content of nitrogen in the compost. It’s a very important indicator for the nutrition of mushroom mycelium. The point is that the mushroom mycelium assimilates organic nitrogen, and can «eat up» the ammoniac one. But when the pH level is high, the ammoniac nitrogen can turn into free, gaseous ammonia which is a poison to mushroom mycelium. One of the most important indicators of compost is a complete absence of the ammonia odor. It’s best to use ordinary construction gypsum. Phosphor gypsum can be used, but it’s necessary to increase the amount of it applied. 40 kg of phosphor gypsum have to be applied to a ton of compost. Usually, the exact amount gypsum to be applied is determined by the quality of the raw materials.

Gypsum (packaged and not) has to be stored in a closed, dry room, so it stays dry and friable. The moisture of the gypsum mustn’t exceed 20%. And like any other supplement, gypsum has to be uniformly applied and distributed in the mass of compost.

Comments

amir ommati:

thx a lot for your best answer to my mr tsarev.
1-for your first qustion i saw mycogone in day 13...

Царев Александр Владимирович:

Dear Amir Ommati!
On which day after the application of peat to compost, the first signs of a mikogon...

Царев Александр Владимирович:

Dear Fouzi
You will be contacted by my partner. He is an Arab and you will be comfortable with him...

watering first flush mushrooms

linda:

sir pliz tell me about the irrigation requirements of the mushroom cultivated in plastic bags with straw...

Царев Александр Владимирович:

Dear Emmanuel Chimanga!
I'm sorry that I could not immediately answer you. The usual depth of...

Царев Александр Владимирович:

Dear Fouad Dagher
Tunnels of 2 phases (pasteurization) of compost are made at the location of the...

Царев Александр Владимирович:

Dear Ali Karim!
I apologize for not being able to answer you right away.
Please send more information...

Царев Александр Владимирович:

Dear Hai Nguyen!
The usual depth of the cover layer is 4-6 cm. Weight is 26-30 kg per 1 m2. It depends...

Царев Александр Владимирович:

Dear Shahar!
I do not use formalin for a long time. The best way to disinfect the growth chambers...

Царев Александр Владимирович:

Dear Tejpal!
These mites usually live in the feathers of chickens. If there was a lot of cold compost...

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