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Trees & Agroforestry

More trees can mean fewer birds, new study reveals

1 min read July 27, 2026 Trees & Agroforestry

Trees planted to protect farmland from wind may not be the biodiversity boost many assume. In Japan’s wetland farming landscapes, shelterbelts benefited some birds but sharply reduced grassland and wetland species that need open space. Researchers found grassland bird abundance dropped by more than 70% near shelterbelts.

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Crop intelligence

Going in during August

Sowing windows open right now, from the crop reference.

Crop Sow Days pH Temp °C Yield
Guava Jul–Aug (planting) 2–3 yr to bear 6.0–7.5 23–30 20–25 t
Pomegranate Jul–Aug (planting) 2–3 yr to bear 6.5–7.5 20–35 15–20 t
Ber (Indian Jujube) Jul–Aug (planting) 2–3 yr to bear 6.0–8.5 20–35 15–20 t
Calamondin Jul–Aug 2–3 yr 5.5–6.5 18–32 12–20 t
Tea Jun–Aug (planting) 3–4 yr to pluck 4.5–5.5 18–30 2–3 t made tea
Oil Palm Jun–Sep (planting) 3–4 yr to bear 5.0–7.0 24–32 20–25 t FFB
Lemon Jul–Aug (planting) 3–4 yr to bear 6.0–7.5 20–32 15–20 t
Jojoba Jul–Aug 3–4 yr 6.0–8.0 20–35 1.5–3 t
Feijoa Jul–Aug 3–4 yr 5.5–7.0 10–25 10–15 t
Loquat Jul–Aug 3–4 yr 6.0–7.5 15–30 10–15 t
Jujube Jul–Aug 3–4 yr 6.0–8.0 15–35 10–15 t
Grapefruit Jul–Aug 3–4 yr 5.5–7.5 15–35 20–30 t
Citron Jul–Aug 3–4 yr 5.5–7.5 18–32 15–25 t
Kumquat Jul–Aug 3–4 yr 5.5–6.5 12–30 8–14 t

54 more in this list. All 538 crops, with every column → The sowing year →

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