Parthenium hysteroforus commonly known as Congress grass, Carrot grass, Chatak Chandni etc. is a menace to farmland, human-beings, animals, environment and bio-diversity. About 35 million hectare of land is so infested with Parthenium. Previously it was a problem of waste and barren land but now Parthenium is a big problem in each and every crop field, orchards and even in the forest.
Due to continuous and large scale use of chemical fertilizers, fertility of land is decreasing gradually. Therefore, bio-fertilizer is a boon for soil health. The demand of bio-fertilizer is increasing day by day. We can make bio-fertilizer from abundantly occurred biomass of Parthenium. By making use of this weed, at one hand we can increase the productivity of our crop land by weeding out of this weed while at other hand we can even earn money by making compost on commercial basis from this waste material.
During interaction with farmers it was found that farmers think if they use compost made by Parthenium biomass, there will be more germination of this weed in their fields. Compost made by unscientific way is the reason to create confusion about the compost. During survey it was found that compost made with flowered Parthenium plants by unscientific way was creating problems in the farmer's field. Study conducted at Directorate of Weed Science Research, Jabalpur revealed that if Parthenium compost made with flowered Parthenium by NADEP or open pit or heap method contained more numbers of viable seeds of Parthenium. In a study it was found that 350-500 Parthenium seeds can germinate from 300gram compost made by NADEP or open pit method. Compost made by scientific way is safe and does not have viable seeds hence good for soil health and crop productivity.
It is always recommended by the scientists to collect the parthenium biomass before flowering for making compost || either by NADEP or open pit method. But it is not practically possible to collect only flowerless plants as all the stages of Parthenium are available at any time due to non-dormancy of seeds which may germinate on the availability of water. Therefore, farmers are bound to uproot every stage of Parthenium during weeding in their fields. Following procedure can be followed for making Parthenium compost:
After removal of compost from pit we may find some stems which give impression that Parthenium plants have not so been decomposed yet. But actually it is well decomposed. Spread that compost in the shady place to dry it. Coming in contact with air, soon wet of compost becomes dry and crumpled. Make a heap of this so dry compost. If still thick pieces of Parthenium stems are seen in the compost, beat them with the sticks. Sieve that compost with 2x2cm size mesh. For selling point of view, make packets of 1, 2, 3, 5 kg for kitchen garden and 25-50 kg for crops and horticulture.
In a comparative study, it was found that in Parthenium compost nutrients were twice more than that of ordinary compost and all most equal to vermin compost.
|Type of Bio - Fertilizers||Nutrients(%)|
|Farm yard Manure||0.45||0.3||0.54||0.59||0.28|
During Parthenium compost preparation there is need Of following attentions:
Source: Directorate of Weed Research