Page 162 - ผลกระทบระยะยาวของการปลูกยางพาราต่อสมบัติดินและความหลากหลายทางชีวภาพในดิน Long Term Impact of Rubber Plantation on Soil Properties and Biodiversity

ห้องสมุดกรมพัฒนาที่ดิน

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D] Land preparation (before the current plantation)

Management of transition plantation  sawing  total harvesting  burning

Harvesting tools  tractor 4 weels  tractor 2 weels

 Non-mechanical plough  other

Other : _________________________________________________________________

Tillage  yes  no

- Depth of tillage  0-15 cm  16-40 cm

- Number of till : _____________________________________________________

- Tillage tools :  tractor 4 weels  tractor 2 weels

 Non-mechanical plough  other

- Other : ____________________________________________________________

Fertilisation  yes  no

Chemical  yes  no

- Type & form : _______________________________________________________

- Formulation (N,P,K) : _________________________________________________

- Number of application : ______________________________________________

- Amount : __________________________________________________________

- Location  around tree  inter-rows

 intra-rows  other

- Other : ____________________________________________________________