2.4.2 characteristics on potphiwitya
Study on characteristics of potphiwitya consists of all 16 types of soil series, soil series, most of the areas in the study area is a set of ground troops (Sena Series: Se) with an area of approximately 1,368 square kilometers. 20 percent of the area of study, which can be found in the Phra Nakhon SI Ayutthaya. Soil series Sena groups 11 soil series, which is in addition to the set of ground troops in the area of study also found soil series thanyaburi Thanya Buri (also: Tan) and DIN (Rangsit, Rangsit: Rs) which features and properties of clay as a medium for deep underground group sour sea sludge resulting from the reaction of soil is very acid-free shipping. Bad drainage, low fertility 50-100 cm. From the soil surface. The freeze of nutrients and contain substances that harm plants grown. Soil structure is solid and tight, solid and dry soil, broken here and there. Make it difficult to loosen plough. Water quality funding source is very acid, fresh water shortages and flooding in the rainy season. Soil series, Ayutthaya (Ayutthaya series: Ay) is a collection of many soil on soil from an area of approximately, 1 Medic.26 square kilometers, or 15 per cent of the area of study can be found in the Phra Nakhon SI Ayutthaya. Nakhon Pathom and pathum Thani is a soil series group 2 with Bang Khen bang Khen soil series (Series: Bn), which has an area of approximately 519 square kilometers in area, studies can be found in the province of Nakhon Pathom, the soil in the same land by a series of groups with characteristics and properties of the soil very deep clay soil reaction group is extremely organized acid. 100 cm. From the soil surface. Bad drainage of soil fertility is very organized acid medium. Cause immobilization of nutrients and toxic substances released per plant. Dry soil, solid and tight structure and crack here and there. Make it difficult to loosen plough. Water quality is classified acid. And flooding in the rainy season made damage to the plants do not like water,
. Some soil series, Len (Len Bang Series: Bl) is a set of soil that can be found in the whole area there are 4 students in the province, about 416 square kilometers of area. In Group 3, soil series, soil series, Bangkok Bangkok (Series: Bk) found in Samut sakhon and Chachoengsao in chachoengsao soil series (Series: Cc) which has the characteristics and properties of the soil very deep clay group originating from brackish water, sludge, you may experience one or more of the sea sludge chandin Lane has no potential to cause soil sulfur acid inside depth 150 cm. From the surface soil is neutral to alkaline reaction. Bad drainage formative medium to high density structure, solid and dry soil, solid crack here and there. Make it difficult to loosen plough. Some areas may have accumulated salt lane chandin found in the soil below. Damage to plants that don't like water-
. And a group of soil series. The number of women in the study area, the soil is clay soil series in Group 4, which includes soil series Ratchaburi (Ratdhaburi: Rb) soil series sing buri (Sing Buri: Sin) series DIN Pier (Tha Rua Series: Tr) Bang PA-in soil series (Pa-in series: Bin) combinations of soil, Sara (serirs Sarabur: Sb) Thon Buri and Khlong San (Earth series series: Tb), which is a very deep clay clay group originating from river sediments with neutral to alkaline soil reaction is. Drainage is quite bad, medium, tight structure, fertility of soil solid dry ice and broken here and there. Water shortages and flooding in the rainy season made damage to the plants do not like water,
. There is also a soil that is on the land series groups area in dry soil series are Din Don-kamphaeng Saen (Kamphaeng Saen Series: Ks) is the most common soil series in the province of Nakhon Pathom province, which covers an area of approximately 576 square kilometers, which is a group of soil series, soil series, 33 Tha Muang and tha Muang (: Tm) by nature and properties of soil series, soil depth on soil kamphaeng Saen is a clay or silty clay ruan ruan. Soil reaction is a mild alkaline pH is about 8.Sticky clay soil is 0 lower ruan silty. MICA Flake were found throughout the pages of their accumulated mass and substance lime mingle in the earth ground neutral soil reaction to weak alkali. Has a pH of approximately 7.0-8.Section 0 sets ground-water sludge originating from tha Palace. There is good drainage, moderate to good soil depth of soil reaction is slightly acid to provide acid (pH 5.5-6.5) soil texture and soil characteristics at lower color does indeed depend on silt deposit bring water each year
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