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Sharing Experience and Key Technical Points of Soilless Cultivation of Hami Melon
I. Basic construction: 1. Sand ridge: According to the width of the greenhouse, dig a groove with a slope (preferably one that allows water to flow), an inverted triangle, with a top width of about 30 cm, a depth of 40 cm, and an iron mesh laid 20 or 25 cm from the bottom of the ditch. On top of the iron mesh, lay a plastic mesh (mesh size should be such that sand does not leak through
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What are the basic requirements for pig barn construction?
Basic requirements for pig barn construction