微喷水肥一体化技术条件下夏玉米生长耗水规律及水分生产率研究

Study on Water Consumption Law and Water Productivity of Summer Corn Growth under Integrated Technology of Micro-spraying Water and Fertilizer

本文在夏玉米生产上,运用微喷灌水肥一体化节水技术,采取田间试验和数学模拟相结合的方法,研究夏玉米生长发育动态、生长期耗水规律,探索作物产量与耗水量之间的关系,为提高水分生产效率,以及优化夏玉米的灌溉制度提供科学依据。通过试验数据分析,夏玉米生长指标实测值与模拟值,土壤含水率及作物耗水量的模拟值与实测值之间有较高的相关性,表明选取的模拟方法具有很好地适用性。

In the production of summer maize, using water-saving technology of micro-sprinkler irrigation water and fertilizer, this paper studies the growth dynamics and water consumption law of summer maize in the growth period by adopting a combination of field experiments and mathematical simulations, and explore the relationship between crop yield and water consumption.It provides a scientific basis for improving water production efficiency and optimizing the irrigation system of summer corn.Through the analysis of experimental data, there is a high correlation between the measured and simulated values of summer maize growth index, and the simulated and measured values of soil moisture content and crop water consumption, it shows that the selected simulation method has good applicability.