The principles and concepts in chemical fertilizer by soil analysis, because farmers have had to manage the land in such a way that the different results in each area is different, even if it is the same land that several properties are difficult to change, at the same time, it has some properties that are easy to change and affect the growth of plants is clearly such a treasure of plant nutrients are nitrogen, phosphorus, and a nutrient which is that Siem taet plants need to use so many disappear from the Earth, if not more, to the ground as fertilizer or top properties.Sara project: solid Earth, which will focus tightly tied with all of the อินทรีย object in the ground. As the benefits of nutrient reduction because plants can not only spread the distributions that should cause the fertilizer plant entered gleams. Change the properties of these occurs easily in the upper soil, especially soil if the soil in front of the same series but with different management, it will make the cost of soil nutrient in different. And make organic fertilizer, chemical, fertilizer, and must be different. For each type of crop plants that have different nutrients for growth, even in the same type of plant species, but there are differences, in addition to nutrient requirements. Climate, it is related to the growth of the plants of each type, each with the same species, therefore, to advise the management of soil and fertilizer, a list, or the use of chemical fertilizer based on soil analysis focuses on therefore determines the specific guidelines in managing, based on soil and climate at a particular plant is required to contain all the soil chemical analysis (soil samples) and physical (soil and land information).
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