Soil improvement by nature
(Natural ways for Soil Improvement)
characteristics of soil soil suitable สำหรับการเพาะปลูก. Must contain a wealth 3 folds
1.Chemical properties; soil must have a balance of minerals food plants, which consists of main nutrient plant nitrogen, phosphorus and potassium in advance. Secondary nutrient consists of calcium, magnesium, Sulfur Nutrient consists of steel.Copper, boron, molybdenum, manganese, and chlorine, and a reaction of soil, the soil must be neutral alkaline or acid salt too
.2.Physical properties; soil must be balanced of the air and the water, the soil has good structure is loose Sui well ventilated. Have the ability to absorb water, soil, loose IslandBurrow to minerals and plant food easily. In the wide and far is the soil, soft ไม่แข็งกระด้าง
.3.Biological properties, is a soil with a balance of microorganisms is a soil with a plaque, and all are small in the soil. Useful quantities, which can control the microorganisms and things are small in the soil.Old plants as well, and microorganisms in soil, can create activities that benefit. To plants as well as Can digest minerals in the soil, which is not beneficial to plants.Old plants and increase more frozen plant nutrients from the air to be useful to plants produce antibiotics against diseases and pests in the soil. Empower to plants and destroy the toxins in the soil
.
soil soil quality problem using cultivated common of most often lacking abundance
complete soil fertility is low. The structure of the soil is poor, dense, do not absorb water
.The microorganisms in soil less because of the unsuitable. However, resulting from the use of
soil and crop continuously by the lack of improvement. And
maintenance farming industry. Unsuitable land use the wrong type
.As well as the source of the soil, such as sand, laterite, acid alkali saline soil, etc., lack of balance in the aspects of chemical properties. Physical and biological need updating
and find solutions to benefit the
.In use for cultivation. Next, following suggest you know to the earth
problem types. In which need to improve to re-use.
advantage. The survey of land development department found that the soil resources
.In the physical, or quality which were popular
1 following problems of low soil fertility and deteriorate. Reports from the survey and classification, soil of the land run in the province
.The country showed that soil is mainly low fertility, naturally
due to country is located in the tropics, the high temperature. And the rain!A lot of mineral dissolution, a parent material of the soil is fast
and with leaching minerals food plants out of the soil in high rate During the rainy season
.Drift with water flowing into the lower, to the river and into the sea. ในที่สุดจาก decay mineral rock in ball clay hill. Hard and fast this
.The soil in the mainly consists of clay minerals kaolinite night
k (Kaolinite), iron, and aluminum oxide (hydrous oxide. Clay) which mineral
clay. These play an important role in absorbing nutrients and to change the
.Positive charge low (low activity clay) the abundance of soil natural low 2
. Soil with special problems (problem soils). From the survey and mapping of land land
has found that certain kinds of soil with the physical properties and chemical
.An obstacle or limits for use in agriculture, especially the cultivation of plants need to be
development or improvement to increase capacity.
in the manufacture of the lands, soil with special problems that said this, when separated by
.The state of problems or limitations, so the following
2.1 acid sulfate soil or soil sulfur (Acid Sulphate Soils)
is the value of soil acidity. (pH) than 4.0 set, but I next
from soil surface down (SUD surface) and in the floor with a substance yellow straw
.Happen (jarosite) values of PH may low down to 3.5 or lower. If
cases, such as. This soil can not grow พืชอะไร up even, but the rice is often neglected.
A is empty, there are grass covered up that cannot grow rice or plant
.The other is due to there are steel and aluminum melt into
toxic per plant, and also makes the elements necessary for growth. Plant
some insoluble is beneficial to plants, especially
.Phosphorus would be crucified (fixation) and is in the form that is not beneficial to the plant, so
qualify. Soil is the special. To
improve and solve to benefit in the use of crop
.Acid sulfate soils or acid sulfur t said, found an area about 9.0 million hectares
or 2.81 percent of area country is found in the central plain in the south.
the eastern and southern coastal area found scattered in
.The area that water ever flood before
2.2 saline (saline and sodic soils) is a soil with salt
water soluble composition high and dangerous. On plants
grown, saline soil, found in the most Eastern
.Northeast area is about 17 million hectares, or percent of the whole country. 5.5 area
also found saline soil in coastal area (coastal.
saline soils) space combination approximately 3 million hectares, including with saline
.In the northeast area of the 20 million acres, saline soil. This
potential giving crop yield, planting low, some cannot grow crops
. Especially in saline soil, said in the Northeast
.The salt crust (salt crusts) appears on the ground surface during the dry season, which indicates that the part
saline soil salty seashore with use.
in salt production, planting fruit by lifting groove for example, coconut and
.Still the forest cover. Besides, some areas use
in aquaculture น้ำชายฝั่ง, such as oysters, shrimp, crab and fish, etc., 2.3
Sandy organized (sand.
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