Over 1st Half of 1974 Our Mushroom Growing Training Centre Yielded 63% First Quality

In relation to my previous post: Our Dutch Mushroom Growing Training Centre Yielded YEAR ROUND TOP QUALITY MUSHROOMS! 

This photo shows the facts:

Classes taught by husband Pieter in German

12 growing rooms of 150 m²

12 week schedule

1973 yielded 52 crops x 20.4 kg/m2 with 60% 1st quality; 20% 2nd and 20% 3rd.

1974 1st half 18.6 kg/m2 yielded 63% 1st quality at 2.56 Dutch Guilder average market value.

~

The mushroom industry changed a lot over the last decades.

As a result of better composting techniques, supplementing, climate control and more productive strains, yields of 25–30 kg/m² in two or three breaks are quite normal.

With the introduction of the bunker–tunnel technique, the 12–week schedule inside the growing rooms has been shortened drastically, thus adding a lot to the production!

Of course all that is being mentioned in great detail inside our new book: modern mushroom growing 2020 harvesting | available WORLD WIDE at 40,000+ booksellers as print on demand