From the article:
Contrary to many other developing countries, where a few people control vast areas of land, the majority of the agricultural lands in Afghanistan are small family plots. However, due to the recent population growth, these plots are increasingly divided into smaller pieces among the heirs, making it even harder for families to live off of them. Plus, the un-mechanized mode of production continues to be a challenge for Afghan agriculture yields. If Afghan leaders want to root out the endemic poverty and malnutrition in the country, they need to focus on city-based economic sectors instead of the underwhelming agricultural one.