Clayey Soil



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Grafting Method - Inarching or Approach Grafting

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Inarching or Approach Grafting Unlike other grafting operations, in inarching the scion is attached to the stock while it is still attached to the parent plant. Round the world, the method has been extensively used in the vegetative propagation of mango. The method involves potting healthy one-year- old seedling in earthen pots, which are usually 12 in deep and 8 in wide at the top. The earth ball along with root system is kept intact and placed in the pot. The unfilled space in the pot is then filled with a mixture of well- rotted manure and canal silt. The soil is firmly pressed around the earth ball and the transplanted seedlings are then watered. Potting of seedlings is usually done one month ahead of actual inarching operations. This allows sufficient time for the seedlings to set before grafting. Inarching can either be done in the spring months or in the rainy season. July and August are preferred over the spring season because after inarching operations in the spr...
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Tree Planting in Problem Soils

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Tree Planting in Problem Soils The ultimate aim of this exercise is to think of some appropriate measures and treatments that would minimum the effects of prevailing harmful factors and therefore maximum plant survival and enhance their growth rate. A normal form area develops into a problem area when shortage or excess of any or some environmental factors prohibit plant establishment and severely retard their growth. Such factors vary from one locality to another and can be any one of the numerous environmental (climatic, edaphic or bio tic) factors or their combination.
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Parent Material of Soil

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Parent Material of Soil Unconsolidated product of weathering from which soil develops is called parent material. Generally there are two groups of parent materials, i.e. sedentary and transported. The transported materials are further subdivided according to transporting agency and place of deposition. Sedentary or Residual                                            The parent material formed in place and still at the original site. Transported                       The parent material carried and deposited by various transporting agencies. By gravity- Colluvial By water- Alluvial By ice- Glacial By wind- Eolian The nature and properties of parent material together with climate are the most important factors affecting the kind and quality of soils. So to understand soils we must know the...
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