Wednesday, June 30, 2010

High Density Planting Technology

Many farmers falsely believe (especially Mango. Kinnow and Guava growers) that 'HIGH DENSITY PLANTING TECHNOLOGY' (hereafter 'HDP') is nothing but to plant more number of trees, get yields up to 6-7 years and when the canopy of the trees in one row touches the next row thereby curtailing farming operations and reduction in yield, simply fell / uproot the trees in alternate rows and continue farming with the remaining plants.

But, the full meaning of HDP, which is one of the highly successful orchard management practices, its basic concepts and benefits should be taught to every farmer for their ultimate economic uplift.

About HDP:

It is a system in which a higher number of plants of same or different crop species is accommodated (normally dwarf varieties) within a unit area in comparison to the conventional planting density so as to obtain maximum output by utilization of land, light and externally applied inputs Viz, nutrients, water, pesticides etc.
  • Semi intensive HDP system accommodates 500 -1000 trees/ha.
  • Intensive HDP system accommodates 1000 -10000 trees/ha employing specialized training systems.
  • Super intensive HDP system with 20,000 to 1,00,000 plants/ha require more capital to establish and is more productive and profitable, if followed scientifically.
Components of HDP:
  1. Selecting dwarf scion varieties
  2. Dwarfing root stocks and inter stocks
  3. Proper training and pruning
  4. Proper use of chemicals
  5. Suitable crop management practices.
Advantages of HDP:
  1. High density planted plants are precocious (showing premature development), easily manageable because of their small size.
  2. They have higher yield potential with better quality produce resulting in higher returns/unit area.
  3. Better utilization of solar radiation because of dense planting.
  4. HDPT is amenable to modern input application techniques such as drip/fertigation, mechanization etc.,
  5. Higher harvest index as well as early economic returns.
  6. Considering the shrinking land resource, continued decline in cultivable land, rising energy cost and land costs together with the mounting demand for more agricultural produce have given us no other option than to adopt HDP.
Constraints in adoption of HDP system:
  1. Non-availability of complete package for HDP system and there is no efficient extension system to disseminate the HDP knowledge to the willing farmers.
  2. Non availability of planting material for dwarf varieties.
  3. Non availability of vegetatively propagated root stocks in different fruit crops and plantation crops.
  4. Non availability of mechanization technology for the use of in densely planted fields.
  5. Overcrowding of trees in some orchard crops (especially in Mango) after 11-12 years.
Estimated cost and return from traditional and HDP in MANGO:

Sl. No.

PARTICULARS

TRADITIONAL SYSTEM

HDP SYSTEM

1

SPACING

10 m X 10 m

2.5 m X 2.5 m

2

No.OF PLANTS/ha

100

1600

3

COST OF ESTABLISHING THE ORCHARD

Rs.30,000

Rs.75,000

4

ANNUAL MAINTENANCE COST

Rs.20,000

Rs.35,000

5

AGE OF STABLE YIELD

8 to 10 years

7 to 8 years

6

PRODUCTION (kg /ha)

6000 to 8000

16,000 to 19,000

7

SALE OF PRODUCE (Rs.7 per kg - Whole sale price)

Rs.42,000 to Rs.56,000

Rs.1,12,000 to 1,33,000

8

NET RETURN

Rs.22,000 to 36,000

Rs.77,000 to 98,000


So, my dear farmer friends. before adopting HDP, acquire full knowledge in tree architecture, physiology of tree size control, development of dwarfing root stocks and about chemical growth retardants for a successful HDP farming venture.

(Source:"Improved Technologies for fruit cultivation" (TB-ICN : 63/2009) Division of Fruits and Horticultural Technology, ICAR, New Delhi 110 012)

Regards,
Vishnu Sankar

Monday, June 28, 2010

Tree felling at an alarming rate!

Dear friends,

Tree felling is made easier and easier with the advancement of technology. You will marvel at the awesome power of tree felling machines displayed at the videos given below.

But at the end of show, there will be no doubt, that you will be worried man, when the reality strikes you in the face that this kind of rapid denuding of the mother earth takes place daily with thousands of such monstrous machines.

After so many summits, meetings, speeches, agreements and disagreements, solution to this grave problem is still not yet in sight.

Mass tree planting drives with massive government funding (irrespective of GDPs and without any discrimination like developed, developing, under developed countries) all over the world will definitely minimize harmful effects of indiscriminate felling of trees.

For our part as an individual and as a responsible human being, we should act now and plant as many trees as possible to insure our mother earth's safety.


Regards,

Vishnu Sankar

Feller buncher cum cutter:

video

Feller buncher:

video

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