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The effect of different mixed fertilizer on soil environment and nutrient in stevia rebaudiana Bertoni had been studied in open field. The result showed that application of organic fertilizer could significantly increase the organic matter, microbial biomass, and the activities of urease and phosphatase and catalase in soil. The potential nutrient and nutrient supplying capacity of soil had been improved...
The effect of different mixed fertilizers on the growth and development in Stevia Rebaudiana Bertoni had been studied in the open field. The results showed that the growth rate, plant height, stem thickness, leaf areas and dry matter weight using organic cultivation were less than that of using the chemical fertilizers in the early stage after transplanting. But 60 days after transplanting, there...
We used the sludge in domestic sewage treatment plant to improve the soil's properties. Firstly, we analyzed the exploitability of soil, and then added the sludge to the soil. The sludge dose is 0, 10%, 20%, 30% and 40%, and 20% sludge dosage is the optimized value for the planting ryegrass.
The experiment was done at Qingdao agricultural university from 2008 to 2009. The varieties were Handao502 and Shengdao13. The effect of different concentration Stevioside glycosides blending liquid (SBL) on the yield and quality were studied. The best concentration and method of SBL were discussed. The result of the experiment showed: the appropriate spraying concentrations of SBL on upland and irrigated...
Through 3 experiments, the high-effective technology for wheat production in dry-land had been studied. The first experiment was about the condition of soil nutrient and water content in irrigated and dry-land wheat of high yield; the second experiment was about the changes of dry weight of root system after anthesis and yield in different soil thickness in dry land wheat by using soil column, and...
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