He studied how to improve soil conditions.

他研究如何改善土壤环境。

youdao

The expert will give us a lecture on how to improve soil.

这个专家将给我们作一个如何改良土壤的讲座。

youdao

These are fast-growing trees and shrubs whose leaves and roots help improve soil.

这是一种速生的树木和灌木，它的叶子和根系有助于改善土壤。

youdao

If possible, in the year before you plant potatoes, plant a cover crop to improve the soil and the potato production.

VOA: special.2009.03.10

To improve clay soils, mix in garden waste or other organic matter and turn the soil deeply in the fall.

VOA: special.2009.03.10

Corn harvests remain small. The researchers say farming methods in Sub-Saharan Africa need to improve or else poor quality soil will increase rural poverty.

VOA: special.2009.07.28

The adoption of herbicide-resistant crops could help improve water and soil quality by reducing the need for tilling.

FORBES: Magazine Article

The scheme is an agri-environment scheme, which provides funding for farmers to manage their land in a way designed to benefit biodiversity and landscape features and improve the quality of water and soil.

BBC: Environment and Sustainability Committee

Zoning laws would be rewritten so that, over time, large parcels of abandoned land would be converted into landscaped open space networks that would capture and clean storm water, improve air quality, and clean contaminated soil as well as provide new recreational opportunities like bike paths and hiking trails and create habitats for local wildlife and migrating birds.

FORBES: Detroit's Innovative Survival Plan Is A Model For The World - But Will It Work?