A study of soil due to the development of the soil by plow rice straw. Conduct experiments in space, converted rice, amphur Muang, Nakhon SI thammarat province, between 15 December 30-2558 to study the influence of the plow system- Rice straw per change of nutrient and pH value of the soil. Study on the effect of the time change in soil nutrient analysis of soil nutrients in the fertilizer to cut. Study on the soil before and after the plow in the cultivation of rice. Analysis of the results obtained from the detection of soil after the plow rice straw. To apply the knowledge that has been forwarded to interested parties so as to develop the project further. All samples are stored in three days. 7 series 1 set plow before and after series of 6 plow the soil for pH meter used for NPK and pH found in prior to plow rice straw. The soil is the main mineral is minimal because the NPK nutrient in the soil before the plow was used for plant growth, nutrient low quantity. After the plow rice straw 2 week (s), quantity, nutrients increased at the highest level because of rice straw by microorganisms that degrade in the soil. Allow the liberation of nutrients from the soil after last week rice straw into 3 peasants began sow grain. During the growth of the rice. With the uptake in the soil to make the soil nutrients in begins. PH in the soil before the plow will have pH = 6. plow rice straw in soil pH values found are likely to increase in the range of 6.5-7 to plow rice straw. It is a process that helps increase the quantity of nutrients in the soil through microbial digestion of rice straw in soil. When the primary nutrients increases. As a result, pH in soil is likely to increase by the factor is important when processing, any difference of nutrient absorption and transport of nutrients. To change the properties of the overall soil nutrients (NPK) found. There was increased after the plow and a higher pH value at which the plow system- Rice straw to help the Earth, translucent ruan Zui. Easy-to-prepare the soil with black embroidery work that plants can spread on the ground more is to add nutrients to make the soil directly.
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