Impacts Of Straw Returning And Fertilizer On Dryland Wheat Yield And Soil Properties

Sustained yield crops need a steady supply of nutrients in the soil, and to maintain andcontinually improve the physical, chemical and biological traits of the soil. However, there isover-reliance on farmland nutrient supply of chemical fertilizers, excessive application offertilizers to China’s agricultural production caused serious harm. Plant stalks not onlycontains a lot of organic carbon, is also rich in nitrogen, phosphorus, potassium and otherelements and a large number of trace elements such as iron and zinc, rational use of straw willbe an important source of organic fertilizer. Release of carbon, nitrogen, phosphorus, etc.,may significantly increase the soil organic matter content, soil improvement; its release ofnitrogen, phosphorus, potassium and trace elements to provide nutrients for plant growth. Butnow the straw approach is unreasonable, the lack of appropriate supporting technology, doesnot meet the reasonable use of straw soil fertility and increase crop yields results. Currentlyresearches and fertilization with straw is not perfect, especially for the way straw, straw withfertilizer and applied research to expand storage capacity increase fertilizer on dryland wheatgrowth and yield very little. In order to improve soil fertility and dryland wheat yield indryland carried out straw and Fertilizer fertilizer on wheat yield and soil properties of Effects.About the main results achieved:Straw can be significantly improved compared to the whole plant dryland wheat tilleringand heading rate, and crushed straw and straw with fertilizer measures had no significanteffect on dryland wheat tillering and heading, fertilizer can be applied to expand storagecapacity increase to some extent improved dryland Wheat tillering, heading volume, while NPfertilizer application does not have a positive impact. In exceptional drought conditions, strawfertilization with a positive impact on wheat dry weight, plant height, grain weight per paniclenumber and so, in which the whole plant stalk with the most significant effect fertilization.The impact of a simple straw on wheat yield is not obvious. In dryland wheat cultivation,fertilizer should be based on the straw, so that both improve soil nutrients, and can improvesoil moisture in dryland soil water effects, to increase wheat yield and soil fertilitysustainability. Straw chopper manner with the best fertilization.Fertilizer application to expand storage capacity increase significantly improved soilmoisture conditions rainfed wheat, especially in periods of drought effect is more obvious, toimprove wheat field soil nutrient conditions also play a positive role in promoting. Althoughnot a significant impact on wheat growing season index, but significantly increase the role of production. Expanding storage capacity increase fertilizer application will play a role inlodging.Fertilizer application to expand storage capacity increase significantly improved soilnitrate, phosphorus, potassium content. NP fertilizer than the test is not obvious. In drylandwheat cultivation, straw should be based on the application of fertilizers, both to improve soilnutrients, but also improve soil moisture in dryland soil water effects to enhance thesustainable use of wheat yield and soil. Straw way to tie the whole plant to field the bestfertilization.Capacity expansion of manure storage and application of NP fertilizers can significantlyincrease the number of bacteria in soil. However, application of fertilizers and expandedstorage capacity increase NP fertilizers can improve soil actinomycetes and fungi, but itresults in terms of expanding storage capacity increase fertilizer slightly better than the NPfertilizers.Straw measures combined fertilizer measures to significantly improve the soil bacterialcontent. The effects of different measures in different ways straw, short straw measures toimprove the soil actinomycetes, and long straw is reduced bacterial content. Short straw cansignificantly improve the soil microbial content, and the whole plant fertilization with strawand wheat straw, been able to play a positive effect. Straw with straw and the measures didnot significantly improve soil fertilization fungi.Expanding storage capacity increase fertilizer application to improve soil enzymeactivities and NP fertilizer treatment differences, which no obvious effect on invertase,phosphatase, urease and catalase effect on the more obvious. Straw enhanced measures on soilenzyme did not play a significant role.