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Soil samples taken before sowing were used to analyze soil physical and chemical indicators using a soil nutrient analyzer. Routine analysis methods were used to analyze soil physical and chemical properties. Yield was measured after harvest (kg/hm2). Analysis of grain quality indicators: 1000-grain weight (g), protein (%), A-amino nitrogen (mg/100g). Barley grain protein content was determined by Kjeldahl method and the measured nitrogen content was multiplied by 6.25. The A-amino nitrogen assay uses a formaldehyde titration. The analysis of soil nutrients in Heilongjiang Province shows that the four soils have a pH of 5.02 to -6.80, are slightly acidic, have a high content of available N and K, and have a low content of available P. Among the four soils, the content of available N in black soil was the lowest, which was 15.44mg/kg; the content of available P in dark brown soil was the lowest, which was 8.63mg/kg; the content of available K in white soil was low, which was 14.86mg/kgo. high. The effective S content is lower in meadow soil and white soil. The critical value of soil sulfur in Heilongjiang Province is 12-}-18mg/kg, and some white pulp soil and meadow soil lack sulfur. Therefore, based on the application of nitrogen, phosphorus and potassium, according to the lack of sulfur in soil, increase sulfur fertilizer, there will be a significant increase in production. The results of field trials showed that the yield of hectares increased by 249.45 kg on the basis of nitrogen, phosphorus, and potassium fertilization. The increase rate was 6.70%. The difference between NPK 10S yield and NPK was extremely significant (t=60.579**). The grain weight ratio was 0.2-1.66g higher than the average grain weight, and the average increase was 0.96g.
The determination of soil nutrients by soil nutrient analyzers shows that reasonable fertilization can increase yield and improve quality. This fertilization must be based on the characteristics of different soil nutrients, taking into account the interaction between various fertilizers to determine the best Matching. In this experiment, only the application effect of various chemical fertilizers was taken into consideration, and the effects of primary fertilizers were not involved. Therefore, the fertilization of soil types in different regions should be further studied.
Analysis of fertilization techniques for beer barley cultivation by soil nutrient analyzer
The main principle of brewing beer is beer barley, whose quality directly affects the quality of beer. During the cultivation process, the yield and quality of beer barley are affected by the fertilizer fertility. Therefore, it is of great significance to study the fertilization technology of beer barley in Heilongjiang black soil (Heilongjiang Academy of Agricultural Sciences), dark brown soil (Nenjiang, Heihe Agricultural Research Institute), and meadow soil (Hejiang Institute). Kenshin, Fujin, Luobei Agricultural Research Institute, Mingshan Farm), Baishitu District (Hongxinglong, Hulin Agricultural Research Institute, 853 and 854 Farms). Test varieties: dark beer, dark brown soil test barley dark beer 1 test, meadow soil, white soil test with red-8947. The test fertilizer was urea, three phosphate fertilizers, and potassium chloride. The sulfur fertilizer was used as a base fertilizer and was applied as a base fertilizer at one time. The soil nutrient analyzer has a very important role in the determination of soil nutrients in the process of fertilization, and the measured results are very accurate.