Effects Of Wheat And Pea Mixed Sowing On Soil Fertility And Photosynthetic Characteristic Of Wheat

In order to slow the decline of soil fertility and soil compaction caused by soil erosion in The Loess Plateau and long-term application of inorganic fertilizers,the impact is mainly from the increase of crop planting density and the combination of land-use and land-use to buffer water and soil erosion.Fertilizer the effect of fertility,so as to achieve the purpose of fertilizer,so as to achieve the purpose of fertilizer efficeiency.This paper mainly studied the effect of winter wheat and pea cultivars on the physicochemical properties of soil in different wheat cultivars,photosynthetic characteristics,agronomic characters,dry matter distribution and yield components of wheat after anthesis of wheat in a pot experiment.The results of the study are as follows:1.Effect of wheat and pea mixed sowing on soil physicochemical properties:increased soil alkaline N,organic matter,total nitrogen,total phosphorus,total potassium and available potassium,and reduced soil pH.2.Effects of wheat and pea mixed sowing on the agronomic characters of wheat:in the stage of wheat seeding stage,the single seeding treatment of wheat was better than the mixed sowing of wheat pea in the aspect of wheat leaf age and the length,width and area of the Trifolium.But at the later stage of wheat growth and development,the plant height and stem diameter of wheat pea mixed seeding were significantly higher than that of the wheat unicast treatment,and functional leaf ratio was higher.3.Effects of wheat and pea mixed sowing on photosynthetic characteristics and dry matter distribution of wheat flag leaves:the chlorophyll content and photosynthetic rate of wheat and pea mixed sowing treatment were higher than wheat monoculture treatment 30 days after the flowering period of wheat,which prolonged the photosynthetic time of wheat,so that more photosynthetic products were transported to the wheat grain through the phloem.4.Effect of wheat and pea mixed sowing on wheat yield components:in the treatment of wheat and pea mixed sowing,the number of panicles and the number of grains per panicle were significant higher than single sowing groups.Furthermore,the yield of mixed sowing treatment was significantly higher than single sowing group,the optimum proportion of mixed sowing of wheat and pea was 2.5:1.In summary,this paper discusses the impact of wheat and pea mixed sowing treatment on soil fertility and wheat yield,and lays a foundation for maintaining high yield and soil fertility in China.