nitrogen budget 第1页

Nitrogen budget modelling at the headwaters of Urumqi River Based on the atmospheric deposition and runoff Comparative study of nitrogen budget in three different vegetable planting patterns under greenhouse condition Net anthropogenic nitrogen input to Huaihe River Basin, China during 1990-2010. Absorption and apparent budget of nitrogen by direct-seeding rice cultivated in aerobic soil with or without mulching Economic values of nitrogen transformation in rice field ecosystems Nitrogen budget estimation based on precipitation and runoff in the source of Yangtze River