More interesting, time consuming and profitable greenhouse options.
Hydroponics.
Growing plants using the KRATKY method.
The seeds are planted in fine gravel and lime is used as a source of calcium. Food is prepared from a complex fertilizer with microelements. A lot of water is required as the stone substrate has a low moisture holding capacity.
Ecoponics.
Growing plants by natural farming.
The seeds are planted in wood chips, lime is used as a deoxidizer and as a source of calcium. Food is prepared from manure by fermenting the masses. Plants are mulched abundantly with fresh grass to create a burning effect, which prevents weeds from germinating, keeps the substrate moist and additionally nourishes the plants as they decompose.
A small greenhouse has a great economic attractiveness compared to hydroponics, about 20%, but the volume of warehouses and works casts doubt on this advantage.
The average greenhouse is about 15% more profitable than hydroponics. A little better than a small greenhouse.
A large greenhouse will yield more profit than hydroponics by only 10%. If you have a surplus of grass, wood chips and manure, then this is a good way to recycle them.
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