黄河三角洲盐碱农田小麦秸秆分解及养分释放动态研究

Study on Wheat Straw Decomposition and Nutrient Release Dynamics in Saline-Alkali Farmland of Yellow River Delta

盐碱土是一种潜在力很大的后备土地资源,存在巨大的开发潜力。当下中国的土地资源异常珍贵,如何合理开发和利用盐碱地就变得尤为重要。我省黄河三角洲区域是盐碱地的集中分布区,传统耕作采用秸秆还田的方式进行土壤生态环境改善,但是如何通过实验数据研究小麦秸秆的失重率,利用不同肥料施加量和水分条件变化对秸秆分解的影响,来确定最佳施肥量和灌溉量,以促进秸秆快速分解腐烂,从而提高盐碱土地的产出率和土地生态环境的提升,是本文研究的意义所在。

Saline-alkali soil is a kind of reserve land resource with great potential and has great development potential.At present,China's land resources are extremely precious,so how to rationally develop and utilize saline-alkali land becomes particularly important.The Yellow River Delta is the concentrated distribution area of saline-alkali land,The traditional tillage uses straw returning to the field to improve the soil ecological environment,However,how to study the weight loss rate of wheat straw through experimental data,how to determine the best fertilizer application amount and irrigation amount by using the influence of different fertilizer application amount and water condition changes on straw decomposition,so as to promote the rapid decomposition and decay of straw,thus improving the yield rate of saline-alkali land and the improvement of land ecological environment,is the significance of this study.