Effects Of Combined Application Of Different Fertilization On The Yield Of Wheat And Water Fertilizer Use In Dryland

A field experiment with wheat of shanxi hongdong county was carried out to study the effects of combined application of different fertilization on the yield, water absorption, nutrient uptake,biological activity, etc on the ridge film furrow sowing cultivation conditions.in order to determine the best fertilizer and proportion, and to be and the dry winter wheat high yield and high efficient and environment friendly fertilizer to provide certain scientific basis. The main results were as follows:1?Dry matter accumulation of wheat with the extension of growth period characterized by gradually increasing trend, to the mature was the highest, the combined application of chemical fertilizer with manure or microbial fertilizer increased by 5.24%,8.52% than measurement fertilizer, and the difference reached significant level; To illustrate the two fertilizer treatments can improve the dry matter accumulation of wheat. Measurement fertilizer there was no significant difference between control 20% reduction of nitrogen fertilizer, shows that a suitable amount of reduction of nitrogen dry matter accumulation of wheat had no obvious effect.2?Organic and inorganic fertilizer and bacterial manure and inorganic fertilizer can effectively improve the economic yield, biological yield of rainfed wheat and earing rate. Its biological yield is the same nutrient levels of measurement and control fertilizer increased by 5.24% and 8.52% respectively, and the significant difference; The grain yield increased by 3.67% and 6.91%, with inorganic fertilizer and inorganic feilizer, significant difference between the measurement and control fertilizer treatments. Organic inorganic fertilizer and inorganic feilizer inorganic fertilizer grain tt&c fertilization significantly increased by 3.56% and 4.68%, state the reason for the two processing to increase production is mainly increased the grain, and measurement and control fertilization and there was no significant difference between control 20% reduction of nitrogen fertilizer, indicating that a moderate amount of reduction of nitrogen had a little effects on grain.3?Net income of Organic and inorganic fertilizer and bacterial manure and inorganic fertilizer treatment can significantly increase the economic benefits of wheat, the net income of the highest in all processing.than the farmers fertilizer, fertilizer, fertilizer for measure for measure to reduce nitrogen treatment significantly increased by 28.01% and 35.34%,5.73% and 11.79%,15.59% and 22.21%.4?The treatment after harvest organic inorganic fertilizer farmers fertilize soil pondage significantly increased by 12.51%, but with the measurement and control fertilization, measurement and control 20% reduction of nitrogen fertilizer and inorganic feilizer difference between inorganic fertilizer treatment was not significant. For growth period precipitation productivity, organic inorganic fertilizer and inorganic feilizer inorganic fertilizer farmers fertilizer, fertilizer, fertilizer for measure for measure to reduce nitrogen increased by 11.0%and 14.4%,3.6% and 6.8%,9.4% and 12.8% respectively ?P<0.05?, and significant. Showed that organic fertilizer and inorganic feilizer is beneficial to promote the utilization of natural precipitation.5?Each processing are increased with the increase of soil NO3-N accumulation in a downward trend. After wheat harvest more information before all have different degrees of nitrate residue, and appeared in 0-20 cm soil NO3-N accumulation peak.0-40 cm and 80-200 cm soil layer the nitrate accumulation difference was not significant. In the 40-80 cm soil organic and inorganic fertilizer and inorganic feilizer inorganic fertilizer processing measurement and control fertilization significantly reduced by 7.02%,7.28%, and farmers fertilizer, no significant difference between control 20% reduction of nitrogen fertilizer. This shows that the organic inorganic fertilizer and inorganic feilizer inorganic fertilizer can significantly reduce the residual nitrogen in the soil must be, is conducive to the absorption of nitrogen.6.. Wheat growth period on the ground part of nitrogen, phosphorus and potassium accumulation of organic inorganic fertilizer and inorganic feilizer inorganic fertilizer under control fertilization treatment increase 0.10%-99.95%?3.12%-29.44%,3.65%-17.51%. In wheat and moderate reduction of nitrogen is measurement and control treatments have not significantly affect the nutrient accumulation of aerial part. Wheat for the absorption of N, P, K nutrient accumulation peak focused on reviving period-jointing stage. Different processing of total nitrogen, phosphorus and potassium uptake are characterized by organic and inorganic fertilizer and inorganic feilizer highest inorganic fertilizer. Each processing stage of aboveground organs the distribution of the nitrogen and phosphorus were as grain> leaf> stem> glume shell shaft, and potassium uptake with stem leaf highest, grain and clever shell in the middle and lowest axis.Researches of inorganic fertilizer nitrogen, phosphorus and potassium apparent recovery from fertilization significantly increased by 49.94%,161.82%,224.87%.7, Organic inorganic fertilizer and inorganic feilizer inorganic fertilizer reduce nitrogen apparent loss,2 m soil available p relative capacity significantly increased by 10.88% and 6.41% respectively than control fertilization, and after harvest and rapidly-available potassium capacity of no significant difference between the treatments.8?Organic and inorganic fertilizer and inorganic feilizer inorganic fertilizer can increase wheat microbial carbon during whole growth period and the period of microbial nitrogen and phosphorus.0 -40 cm soil invertase, urease and alkaline phosphatase activity in the whole growth period of wheat showed a trend of rise after the fall of the first, and sucrase in flowering stage, urease, alkaline phosphatase activity in peak jointing stage and is not obvious difference between the processingTo sum up, under the condition of ridge film furrow sowing cultivation, measurement and control application quantity of nitrogen ?N? 58 kg/hm², phosphorus quantity ?P₂O₅? 53 kg/hm², k content ?K₂O? based on the amount of 45 kg/hm², organic and inorganic fertilizer inorganic fertilizer and inorganic feilizer can significantly improve the wheat grain yield, biomass, growth period of aboveground nutrient accumulation and nutrient use efficiency and soil biological activity, etc. Suitable for popularization and application in be areas.