Effects of Different Fertilizer Treatments on Nutrient Leaching Loss in Tobacco Soil

The effects of different fertilization treatments on nitrogen(N) and potassium(K) nutrition losses were studied by using pot experiment and soil leakage solution testing to provide a reference for protecting soil nutrient and ecological environment.The tests indicated that topdressing fertilization which was separately applied to the soil counteracted nutrient losses under the conditions of rainfall.Moreover,the soil available nutrients were rich.Obviously,the amount of nutrient loss was mainly influenced by fertilizer application,the high rate of fertilizer was susceptible to nutrient losses.But nutrient losses had little influence on soil available potassium content.