| The organic fertilizer technology plays an important role in the facility agriculture. It is an effective method to study the soil nutrient status of Yantai agricultural facilities, and to establish the standard organic fertilizer technology. Based on a large number of soil sample test data and regional test data, this study was based on quantitative analysis of the agricultural soil nutrient status in Yantai City, combined with the main crop nutrient index and organic fertilizer application amount, analyzed the relationship between the amount of fertilizer and organic matter and provided the basis for the application of agricultural scientific fertilization.1.The content of organic matter in Yantai city and each county is low and the average content was 10.83g?kg-1, the range is 10.58-11.02g?kg-1, Muping District content lowest Kunyu Mountain reserve content is highest and the cities of Shandong Province compared to soil organic matter content is low.2.The average content of nitrogen in the alkali solution is 19.92mg?kg-1, the range is 24.48-16.74mg?kg-1, the highest in District of Muping and the Development Zone is the lowest.3.The average available phosphorus content of 96.7mg?kg-1, the range is 80.3-137.7mg?kg-1, ZhaoyuanCity was the highest, Fushandistrict was the lowest.4.The content of available potassium in the soil of Shandong province is in the medium level of agricultural soil, the average content is 130.9g?kg-1, the range is 107.5-188.1g?kg-1, the Longkou City is the lowest, the content of Laishanis the highest.5.Effective calcium content in soil in Yantai city counties serious lack, Theeffective magnesium content in rich state, the average content is 594mg?kg-1, the range is 525mg?kg-1-999mg?kg-1 Lai mountain area, Zhifu District, the highest content is the lowest.6.TheCEC average content of 17.87cmol/kg, the range is 15.44-19.95cmol/kg, Zhifu District and Qixia City is are the lowest content, Zhaoyuan City is the highest content.7.The organic fertilizer could improve soil organic matter content and soil organic matter increased from 11g?kg-1 to 15.3g?kg-1, with the increase of organic fertilizer, the content of organic matter in the soil increased gradually.With the increase of organic fertilizer and organic fertilizer, the soil alkaline hydrolysis nitrogen increased with the increase of 4 t. The content of available phosphorus in the soil was decreased by5.1%.Adding 2t, 3t, 4t of organic fertilizer increased the content of phosphorus in the soil, the 4T of the experimentation area increased by 4.8%; no application of organic fertilizer increased the content of available potassium in soil decreased by 7.8%,With the increase of organic fertilizer application, the effective potassium content in soil of 2t, 3t, 4t of organic fertilizer increased with the increase of organic fertilizer, and the maximum increase of 4t was 3.9%;With the increase of organic fertilizer, soil available calcium and magnesium content were not obvious. With the increase of organic fertilizer, the CEC application increased significantly.Long term application of organic fertilizer can reduce the pH value, improve soil, agricultural soil pH from 7.4 to 7. The soil pH value decreased with the increase of organic fertilizer, and the soil pH value was significantly negative correlated with the application of organic fertilizer. |
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