Research On Influence Of Rice、Sunflower And Soil Fertility On Different Fertilization Treatment In Yellow River Irrigated Field Of Ningxia

In the view of the problem of unreasonable structure, unreasonable fertilizer, lower fertilizer utilization rate, serious waste, and the resulting surface ecological environment in Yellow River irrigated field of Ningxia. The influence of different fertilizer treatments on crop and soil fertility were studied. Different fertilizer treatments on rice and soil fertility tests were setted in Wangtai and ShengZhuang.using Fuyuna4and Ningjing43.Tests used randomized block design,, the research results showed that:1Different fertilizer treatments on rice, and soil fertility impact experiments(1) Wangtai test showed that1.5NPKM fertilization treatment NPKM and relative CK could significantly increase grain yield, increased by72.5%and72.5%respectively; Compared to CK treatment, in addition to treatment PK, M not significantly increase production of rice straw, other treatment can significantly improve the straw yield, growth is between54.1to128.5. Analysis from the biomass, biomass lowest in CK, NP treatment,1.5NPKM treatment NPKM treatment, have all increased in different degrees of rice biomass, and is a significant difference compared to CK treatment; The fertilization treatment harvest index was highest in M, of0.53, NK with min.0.42. From the influence of different fertilization treatments on rice soil inorganic nitrogen analysis, soil NO3--N in80cm soil layer above1.5NPKM treatment is the highest, followed by M, NPKS treatment and NPKM treatment, which organic fertilizer processing soil NO3--N content is higher, and lowest NK processing. Each soil NH4-n content in various fertilizer treatments, the value size is between0.05to1.17mg/kg, but the difference is not obvious.(2) ShengZhuang test showed that the grain yield of rice, the relative contrast no fertilizer treatment, the treatment is to improve the rice grain yield, including conventional fertilization is no fertilizer treatment increased by10.6%than control, optimization of fertilizer+humic acid increased by8.9%than control, but the conventional fertilization treatment economic coefficient is only36.0%, far less than40.0%of optimized fertilization+humic acid treatment. Analysis of rice production factors can be seen that optimal fertilizer+humic acid on the grains and the spike grain number two indicators are between different fertilization treatment combination and no fertilizer treatment is the highest, but mu ear number is smaller than other treatments. From arable layer soil nutrient, optimization of fertilizer+humic acid hydrolysis of organic matter, total nitrogen, total PhosPhorus, nitrogen, and PhosPhorus is the highest of all the processing effectively, but total potassium, available potassium was the lowest.2Different fertilizer treatment on sunflower and soil fertility test showed that the influence of various fertilizer treatments could increase the grain yield of the canopy, the production of NPK, NPKM treatment can reach5.9t/hm2, to the highest of all processing, than CK increased by about55%; Various fertilizer treatments on YouKui economic indicators show the NPKM treatment with increased grain number and grain, is the highest of all the fertilizer treatments and CK, seed setting rate is for various fertilizer treatments were higher than the only inorganic fertilizer treatment, second only to CK and M. From the different fertilizer treatments on soil in terms of the influence of different fertilizer treatments on soil PH, organic matter, total N, total K and so on performance is not obvious after crop harvest.