Page 46 - Introduction to Agriculture by: Aqleem Abbas
P. 46

Introduction to Agriculture         Notes prepared by: Aqleem Abbas


               Disadvantage of tillage
                                     1.  Extra lost, extra energy, labor and time is required.
                                     2.  Sometime it also destroys the soil particles or soil structure.
                                     3.  Intertillage damage crops
                                     4.  Higher decomposition of organic matter.
                                     5.  Tillage operation will increase the no of weeds.
                                     6.  No of microorganism will also increases.



                                                      Tillage operation

               Tillage operation changes from area to area it is because of soil type, cropping pattern, soil moisture
               content and climatic factors.

               Types of tillage:

                   1.  On seasonal tillage
                   2.  Off seasonal tillage
                   3.  Special  purpose tillage

               On seasonal tillage consist of Preparatory tillage and Intertillage

               Preparatory tillage has two types

               Primary tillage

               Secondary tillage

               On seasonal tillage

               Tillage operation performed for sowing of seasonal crops

               Preparatory tillage


               The tillage we prepare soil for growing of crops.

               Primary tillage

               After the harvest of crops usually deep tillage is practiced.

               e.g. desi and mesion plough, mould board plough, disc plough, subsoiler and rotavater.
   41   42   43   44   45   46   47   48   49   50   51