Planting & SoilCâu 35 / 100
Which practice BEST improves drainage in a heavy clay planting bed?
a.Compact the soil before planting
b.Add fine sand only in small amounts
c.Incorporate organic matter such as compost and improve grading
d.Line the bottom of the bed with plastic sheeting
Giải thích
Blending compost and other organic matter into clay improves aggregation, creating larger pore spaces that let water move through. Combined with grading that directs excess water away, this relieves waterlogging. A small amount of sand can actually make clay worse by forming a concrete-like mix, and plastic traps water.
Luyện miễn phí toàn bộ 100 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
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- A soil amendment high in nitrogen but low in decomposition, like fresh wood chips tilled into soil, can cause what short-term problem?
- Cool-season turfgrasses such as tall fescue grow most actively in which conditions?
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