Effects Of Different Fertilization And Irrigation Amounts On Coastal Saline Soil Chemical Properties And Wheat Yield

In order to increase wheat yield on costal saline-alkali land, and to integrate the comprehensive regulating and management measure of irrigation and fertilization in the research area, the study researched 3 objects which are the water, fertilizer, explore different fertilization and irrigation amounts on reducing salt, fertilizer maintenance, and wheat increasing production in Bohai granary technology project area.By comparison of the effects of reducing salt and increasing wheat yield on different patterns, the results show that:?1? On the field experimental condition, compared with other models, irrigation 1.5 times the SPV and fertilization?N-P₂O₅-K₂O=225:75:150, kg/hm2? 1:1 ratio model increased production increased production by 7.43%.?2?On the field experimental condition, high irrigation level decrease the total salt content of top soil.Compared with other models, irrigation 1.5 times the SPV & fertilization?N-P₂O₅-K₂O=225:75:150, kg/hm2? 1:1 ratio model decrease the total salt content of top soil by 9.52%, decrease EC by 9.59%, decrease p H by 0.06-0.23 units.?3?On the field experimental condition, compared with other models, irrigation 1.5 times the SPV & fertilization?N-P₂O₅-K₂O=225:75:150, kg/hm2? 1:1 ratio model increased soil total nitrogen by 9.80%, increased Av P by 10.40%, increased Av K by 16.66%.?4?To increase production, improve soil fertility, improve freshwater resource utilization, The method of irrigation 1.5 times the SPV & fertilizer?N-P₂O₅-K₂O=225:75:150, kg/hm2? is the most efficient and optimal logistics mode; Irrigation 1.5 times the SPV & fertilization?N-P₂O₅-K₂O=225:75:150, kg/hm2? 1: 1 ratio and the logistics-based recovery mode as a long-term local and salinity control, stable production and recommendation mode.