greenhouse

When changing crops in the greenhouse, loosen the soil to a depth

• 8-10 cm

• 10-12 cm

• 12-18 cm

• 18-22 cm

. Permissible speed of movement of machines and mechanisms on the territory of the greenhouse complex

• 10 km / h

• 15 km / h

• 20 km / h

• 30 km / h

During the construction of greenhouses, the slope of the terrain is allowed

• 0 °

• 1 °

• 2 °

• 3 °

There should be no more uneven planning of the soil mixture in the greenhouse

• 5 cm

• 7 cm

• 9 cm

• 12 cm

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

The most common diameter of plastic pipes for underground heating

• 20-28 mm

• 28-30 mm

• 30-32 mm

• 32-34 mm

The roof of greenhouses is used for whitewashing

• Aqueous solution of chalk 1:1

• Aqueous solution of chalk 1:10

• Aqueous solution of chalk 1:2

• Aqueous solution of chalk 1:1

What is the thickness of the manure layer in semi-warm mid-early greenhouses?

• 40 cm

• 50 cm

• 60 cm

• 70 cm

What ingredients are included in the composition of mineral greenhouse soils

• Sod land + peat + manure

• Sod land + vermiculite + manure

• Sod land + perlite + manure

• Sod land + perlite + sand

Plexiglas allows ultraviolet rays into the greenhouse

• 73%

• 63%

• 53%

• 43%

Tags

NGSS.MS-PS4-2

Positive effect of evaporative cooling in greenhouses

• Constancy of the illumination level

• Changing the lighting level

• Constancy of air humidity

• Change in air humidity

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-3