nóng / mín / gěi / jiǎn / tǔ / shī / jiā / yǒu / jī / féi / yǐ / gǎi / shàn / tǔ / rǎng / jié / gòu农民给碱土施加有机肥,以改善土壤结构。Farmers add organic fertilizer to alkaline soil to improve its structure.