Miscellaneous

जलकुंभी: कृषि के लिए एक गंभीर खतरा Water hyacinth (Eichhornia crassipes) is a free floating perennial aquatic plant, native to South America.  Water hyacinth is a popular water garden plant because of the beauty of its large, purple to violet flowers and its interesting floating vegetation. Many plant nurseries and big box stores sell it as an ornamental pond plant. Later it was seen that the plant is basically a very aggressive invader which can form thick mats on water surface. Gradually, it is known that among the aquatic plants, water hyacinth is the worst aquatic plant in the world. It becomes a fierce competition with other micro flora and fauna in the...

दार्जिलिंग हिमालय क्षेत्र में कृष्‍णा फलों का विश्लेषण Passion fruit (कृष्‍णा फल), a high value foreign exchange earning fruit crop rich in appreciable quantities of vitamin A, B, C with medicinal value, is mostly grown at an altitude of 800-1500 m above mean sea level. The cultivation of passion fruit is mostly restricted to few of the North Eastern states and hilly regions of South India. It has a very good scope of commercial cultivation in the Darjeeling Himalayan Regions of West Bengal particularly Kalimpong and Kurseong subdivisions. This will help the small farmers to improve their economic condition that ultimately leads to overall prosperity of this region.  Darjeeling Krishi Vigyan Kendra will provide...

Silicone: A beneficial Ingredient for plants पोधो को अपना जीवन च्रक पूरा करने के लिए कुल १८ पोषक तत्वो की आवशकता होती हे। सिलिकॉन इन्ही में से एक आवश्यक पोषक तत्व हे। सिलिकॉन मुख्य रूप से पोधो की शक्ति और कठोरता को बढ़ाने तथा पोधो के ऊतकों में अपनी उच्च क्षमता के साथ जुडा हुवा हे। सिलिकॉन रक्षा प्रतिक्रिया तंत्र द्वारा पोधो में आने वाले रोगों के प्रति प्रतिरोधक शक्ति को बढ़ाने में सक्रिय भूमिका निभाता है। यह कई पौधों मे आनुवंशिक रूप से जैविक और अजैविक तनाव दूर करने के लिए भी लाभदायक हे। सिलिकॉन का संक्षिप्त इतिहास सिलिकॉन मिट्टी में ऑक्सीजन के बाद दूसरा सबसे ज्यादा मात्रा में पाये जाने वाला तत्व...

ग्रीनहाउस गैस उत्पादन पर मानवकृत गतिविधियों और कृषि कार्यो का प्रभाव Human activities contribute to climate change by causing changes in Earth’s atmosphere in the amounts of greenhouse gas­es, aerosols (small particles), and cloudiness. Human activities like burning of fossil fuels (coal, oil and natural gas), deforestation and various agricultural and industrial practices, are altering the composition of the atmosphere and contributing to climate change.  These human activities have led to increased atmospheric concentrations of a number of greenhouse gases (GHGs), including carbon dioxide, methane, nitrous oxide, chlorofluorocarbons, and ozone in the lower part of the atmosphere. The largest known contribution comes from the burning of fossil fuels, which releases carbon dioxide gas to...

कार्बन ट्रेडिंग पर अंतर्राष्ट्रीय सम्मेलन और वैश्विक पहल Carbon is the common denominator in all polluting gases that cause global warming. Carbon dioxide is the gas most commonly thought of as a greenhouse gas. It is responsible for about half of the atmospheric heat retained by trace gasses. It is produced primarily by burning of fossils fuels and deforestation accompanied by burning and bio-degradation of biomass.  It is estimated that if the CO2 increases in the atmosphere at the present rate and no positive efforts are pursued, the level of CO2 in the atmosphere would go up to 800-1000 ppm by the end of current century. Which may create havoc for all living...

कृषि वानिकी (एग्रोफोरेस्ट्री): शुष्क भूमि क्षेत्रों में ग्रामीण आजीविका की सुरक्षा में सुधार करने की रणनीति Most of the rural poor are small holders practicing low inputs agricultural production and living in arid and semi-arid regions of dry lands. Some dry land regions of India are characterized by erratic rainfall, high temperature, and poor quality land where the prospects of successful arable cropping are limited & risky. Production system under the fragile dryland environment challenged with several biophysical & socio-economic problems. The growing food insecurity and deteriorating livelihood situations in dry regions of India call for concerted and consorted actions to take advantage of the high potential of agro forestry, among other systems,...

Stacking plant, Harvesting and storage of fruits in Tomato crop टमाटर के पौधे को सहारा देनाः- टमाटर के फलो के उत्तम व आकर्षक रंग, उनको सड़ने से बचाने के लिये एवं फलो के उचित आकार के लिये खास तौर पर अनिर्धारित वृद्धि वाली किस्मो को सहारा देना आवश्यक होता है। चुंकि टमाटर का पौधा शाकीय होता है एवं लदे हुये फलो का भार सहन नही कर पाता इसलिये जमीन मे फल सहित इसकी शाखाएं गिर जाती है। यदि पौधे को सहारा नही दिया जाये तो जो फल नमी अवस्था मे मृदा के सम्पर्क मे आता है वह सड़ जाता है। अतः ऐसा फल बाजार मे बेचने योग्य नही रहता एवं एक अनुमान के...

कीटनाश्‍को का पर्यावरण प्रदूषक रूप और उनसे पर्यावरण का बचाव Insecticide contamination is caused by diffuse sources and point sources. Diffuse sources are mainly related to drift losses and run-off during application and drainage discharge from treated fields. Point sources are mainly related to the handling of pesticides during transport, storage, filling, cleaning, and management of liquid residues and disposal of empty packages. When a pesticide is applied directly to a target pest (plant or animal) the whole site is affected including crop plants, soil organisms and potentially humans and wildlife in the immediate area. In the case of agricultural use, once they are applied, insecticides and their metabolites can enter the plant, soil,...