CHAPTER 4 EXPERIMENTAL RESULT AND DISCUSSION 4.1 General This chapter discusses the result of experiment of soil properties at the Orthosiphon Stamineus plot, INSAT as describe in chapter three. The experimental were aimed to study the impact of compaction on soil properties at different depth for Orthosiphon Stamineus cultivation in order to determine the suitable soil classes, and propose best depth to plough the area to in order to have high yield with cost effective practice to manage the area. The experiment is taken according to proper step as mentioned in methodology of the study described in chapter three. The result and their comparisons are described through table and figures as following. Finally the experimental results are summarized at the end of the chapter. 4.2 Sieve analysis method The figure below shows graph was plotted based on the sieve analysis result. The graph shows the curve for the soil sample A, B and C. Figure 4.1: Soil grain size analysis for sample A Figure 4.2: Soil grain size analysis for sample B Figure 4.3: Soil grain size analysis for sample C The sieve analysis use to determine the grain size distribution by using sieves no 8, 18, 35, 50, 100, 200, and 400. Every sieve is different in both diameter and weight. For sample A, after sieving according to sieve no 8, 18, 35, 50,100, 200 and 400 are as following, 73.53%, 62.38%, 53.93%, 44.42%, 24.78 %, 8.69% and 1.89%, for sample B, 84.53%, 70.97 %, 61.01 %, 51.41 %, 32.25 %, 13.01 %, and 3.6 % for the sample B. Next, 95.42 %, 79.44 %, 67.31 %, 58.29 %, 39.96 %, 17.36 %, and 5.11% for sample C. The percentage passing is then can be used to plot the semi log graph of Percentage Passing vs. Sieve Opening Size. The figu... ... middle of paper ... ...res and water are available in lower part of soil which can provide enough water for “Misai Kucing” cultivation since it needs high volume of water. To propose a suitable plough depth for “Misai Kucing” depending on root of the plant and type of soil can be made using available water equation: AW = Drz x AWH = 80cm x (167mm/m) = 0.08m x (167mm/m) =13.36mm So the most efficient ploughing depth for “Misai Kucing” cultivation at top level is 0 cm - 15 cm caused by the fibrous properties of root of “Misai Kucing” and there is no need for deep ploughing. The fibrous root extends 80 cm into soil with available water holding (AWH) of silty loam soil taken from Table 3.2 which limit the water uptake into depth of 13.36 mm only. Indirectly this can cut overhead cost and bills which can generate high revenue contributed by the lesser need of energy in ploughing.
The results of this experiment are shown in the compiled student data in Table 1 below.
Going into details of the article, I realized that the necessary information needed to evaluate the experimental procedures were not included. However, when conducting an experiment, the independent and dependent variable are to be studied before giving a final conclusion.
Next, the kukui tree’s physical features have all contributed, in some way, to its adaptation here in Hawaii. The kukui tree is such a resilient and adaptive species because it can be commonly found in various parts of Hawaii. It is able to grow in a variety of conditions such as different types of soils, a pH of 5-8, being able...
As you may or may not know there are many types of farming. For those farming types, there are many tillage methods used. Depending where the farm is located is how the farmer knows what method to use. The methods used are No Till, One pass, Conventional, Conservation, and chisel plow plus. Let’s start out with No Till.
• For the spacing, a consideration should be done for the depth of compressible layer, permeability of soil and location of ground water table. As well as that when compacting for deeper layers a wider spacing should be used compared to upper layers.
example, phosphorus levels in the ARHS soil and potting soil are 37.5 ppm and 25 ppm respectably.
It is optimal for Moso bamboo when the rainfall reaches 400 to 600 mm by shooting time. March to May is the fast growth time for shoots and new culms, so there is a need for a vast amount of water in this period. In the Moso bamboo central distribution zone, rain season, the time of shooting and new culm growth coincide. July to September is the time of rhizome growth and shoots bud division. During a drought, few shoot buds will divide and conduct; c hoots will develop in the next spring. The most suitable soil conditions: Over 60cm deep fertile loam; pH = 4.5 to 7.0; moist but not
roots deep into the soil in search of moisture. There is also the need to trap rainwater and channel the
There are two histograms, showing information on GPA, and showing information on final grade. Histograms are commonly used with interval or ratio level data (Corty, 2007). The data in the GPA is distributed and slightly skewed to the right, which means it has a positive skew and has a peaked distribution. The final histogram also has a leptokurtic frequency distribution, but is skewed to the left meaning this has a negative skew.
Further research on the method was carried out by Terzaghi and Cassagrande. They used split spoon for their experiment with the support of ASCE’...
The bubbles forms become more spread out when the pressure drop increases because the pressure acting on the holes of the sieve trays causes to push the bubbles against the other bubbles.
...leaf blade width(FLFLW), basal tiller number(BASTIL), and plant height(PLTHT) were recorded by averaging five plant for each accession.
A particle size distribution was obtained by the combination of dry sieve test and hydrometer test (BS1377-2:1990). Dry sieve test analyse the percentage of soil sample retained on size 63 µm test sieve whereas hydrometer test analyse percentage of passing down 63 µm test sieve. The grading curve or particle size distribution is shown in Figure 4.1.
Now I must compare this data. In order to this, I will do a scatter
Soil is the most important non-renewable resource on any farm. Healthy soil is key to a good