Tuesday 28 July 2020

Preparation of Panchagavya and how to use it as plant growth promotor

The most prominent plant growth promoter and support  is Panchagavya or panchakavyam which literally means a 'concoction made of five products obtained from a cow'. The ingredients are Cow dung, Cow urine, Cow's milk, Curd and Ghee. These were mixed in correct combination and procedure and the mixture was fermented to get the wonder Elixir. This was a single solution for controlling the pests and boosting the plant growth and enhancing the yield, enriching the soil with useful minerals and useful microbes.

Preparation of Panchagavya:

We can now see how this is made:
The following items are required:
1. Fresh Cow dung  - 1kg
2). Cow urine- 1.5 liter  
3). Cow milk-1.5 liter  
4). Cow curd- 250 Ml 
5). Ghee – 250 gm 
6). Ripe yellow bananas (Poovan)  – 2 nos
7) Water -    1.5 liters

Procedure:
* Mix Cow dung and Ghee well and keep it covered in a wide mouthed plastic, cement or earthen container.( Avoid metal containers as this may react with metals.) Stir the contents thoroughly both in morning and evening and keep it covered with a fine mesh or cloth for 3 days. If not covered, the flies will lay eggs and we will have maggots in the preparation.

* After 3 days, mix cow urine and water and keep it covered for 15 days with regular mixing both in morning and evening.

* After 15 days add Cow's milk, Cow's curd and Bananas, mix well and keep it covered for another 15 days. 

* Do regular stirring daily, both in morning and evening and keep covered.
Panchagavya will be ready to use by then. 

Dosage and frequency of usage
10 Ml concentrate can be mixed in 1 liter water and filtered and used for foliar spray for plants from 4 leaf stage up to mature plants, once a week 20 –30 ml  Ml in 1 ltr water (3% solution) can be used for soil drench. This concentrate can be stored upto 6 months.

Improvement  on the formula
This concoction had been modified and bettered by many experts and now they have incorporated a few more ingredients. So while adding Banana, the following two can also be added
Tender coconut water – 500 Ml 
Jaggery - 3 kg ----- 500 gm
Balance is all the same. Some farmers add more items like sugar cane juice, fruit juices and toddy to introduce yeast for better fermentation. These inclusions will add to additional nutritional values for the preparation  

Chemical composition
pH                : 5.45 
EC dSm2 : 10.22
Total N (ppm) : 229
Total P (ppm) : 209
Total K (ppm) : 232
Sodium               : 90
Calcium               : 25
IAA (ppm) : 8.5
GA (ppm        : 3.5
Microbial Load
Fungi               : 38800/ml
Bacteria : 1880000/ml
Lactobacillus : 2260000/ml
Total anaerobes: 10000/ml
Acid formers : 360/ml
Methanogen    : 250/ml

Fatty acids Alkanes Alconol and Alcohols




Thursday 16 July 2020

How to build geodesic domes using bamboo

The Geodesic domes are spherical in shape were lightweight triangular or polygonal facets consisting of either skeletal struts or flat planes, largely in tension, replace the arch principle and distribute stresses within the structure itself. 

There are probably as many different dome designs as there are dome builders. This is partly because size, geometry, designs and coverings can be modified according to the raw materials available. The design shown here, though not as grand as the ones developed by experts, still uses the same basic geometric form. It is simple to build and easy to dismantle. 
Depending on the type of covering you use, this design is suitable as a temporary or semi-permanent dwelling. 

The essentials:

To build your own dome home you will need the following:

Time : about a day (although it will only take about an hour to put up and less to take down).
Equipment : drill and drill bits, tape measure, protractor, hand saw and a vice (not essential but will make construction more accurate, particularly when drilling the holes).
Materials : hazel poles or broomsticks, about 20mm (¾") in diameter, 1.5m (5') of 130mm (5") alcathene gas pipe and  260 split pins. These make it easy to erect and take down your dome.

Preparation
Step 1. Cut 35 poles to exactly the same length: 1050mm-1200mm (3'6"-4') would give even tall people adequate headroom. Do not cut them shorter than 900mm (3') unless building for children; and 1200mm (4') is probably the optimum length for the strength of materials and joints used in this design.

Step 2. Saw 30 more poles, which must be 11% shorter than the long poles. For example, if you cut the long poles to 1200mm (4') then your shorter poles will be 1070mm (3'6").

Step 3. Cut the alcathene gas pipe into sections 50mm (2") long to make the joints. You will need 26 joints in all.

Now you need to drill holes in the joints to hold the ends of the poles. The holes will need to be fractionally larger than the poles you use. For example, if you use standard household broomsticks which are roughly 20mm (¾") thick, holes will be cut to just less than 25mm (1") in diameter. This will ensure enough 'give' in the joints to create the angles necessary in dome building. You must make precise measurements. Be consistent, regardless of the dimensions you decide upon.

Assembly

Step 1. Assembling a prototype:Take one 5-hole joint and slot in five of the smaller poles.

Put two 4-hole joints at the base of the pentagon and slot three 6-hole joints onto the upright poles.

Step 2. At this point, measure where the holes need to be drilled in the poles either side of the pipe. Depending on the thickness of the pipe, this will be about 25mm (1") from the end of each pole and again about 25mm (1") further along the pole.

Once you have marked the poles, dismantle the pentagon. Sort the poles into two piles – long and short. Drill two holes in each end of every pole. It is vital that each hole is drilled in exactly the same position on every pole.

Step 3. Reassemble the pentagon and fasten the joints by inserting the split pins. Build from the middle outwards following the pattern as shown in video.

You can view the video in this post. Geodesic dome home was built in Aranya eco village, Berikai, Tamilnadu. 
Mango people an organization who helped in building Geodesic dome.



Video courtesy : #mangopeople #aranyaecovillage 

You can learn how to build geodesic domes practically through Auroville Bamboo centre.. The courses are going on.. :)

You can also contact #mangopeople an NGO in faridabad.


#geodesicdomes #portableshelters, #bambooshelter