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KrishiSewa - Agriculture Knowledge for Indian Farmers

water pollution Tag

23 Aug

Posted at 06:02h in Protected farming
Sonalika Sahoo, Mohan Lal Dotania, Ranjan Paul, Akram Ahmed and Arti Kumari 18 views

प्लास्टिकल्चर: पारिस्थितिकी तंत्र में माइक्रो प्लास्टिक का एक स्रोत Plasticulture is the use of plastics in agricultural practices; it includes all kinds of plant or soil coverings ranging from mulch films, row coverings, poly-tunnels to greenhouses, lining of farm ponds and micro-irrigation (drips and sprinklers). Plastic mulch allows farmers to grow cash and grains crops in water scarcity areas. The sheets, usually composed of polyethylene, help conserve water, suppress weeds, boost soil temperature, and effectively increasing crop yields by 20 to 60 percent. Plasticulture helps in reducing use of water (~30-40%), agro-chemicals and fertilizers. It can well be incorporated in the mainframe system within the field of sustainable agriculture practices domestically.Its effective implementation is likely to result in robust food grain production and consequent rise in agriculture gross domestic product (GDP) in excess of 4 per cent. Fig 1. Plastic mulch for growing vegetables Use of Plastic in Agriculture Plasticfilm is used for lining farm pond in drought prone areas with highly erratic rainfall. The water seepage and evaporation are major challenges in these areas due to which drop in depth per day of pond water is high. To escape this depletion of stored water, pond sealing is done by installing it with conventional plastic lining. The HDPE (high density polyethylene), PVC (polyvinyl chloride) and polyethylene are mainly...

30 Apr

Posted at 06:55h in Soil & Fertilizers
Ram Naresh 12 views

नाइट्रोजन उर्वरकों के अधिक उपयोग के कारण भूजल प्रदूषण After independence our nation's primary aim was to achieve self-sufficiency in the food production. To achieve this aim we incorporated the primary means of maximizing the yields of agricultural crops through use of fertilizers, pesticides and other chemicals besides improving the inherent quality of the seeds. Though it helped our nation in producing the food for ever-increasing population but the unsustainable path used to maximize the yield caused some grave concerns like that of groundwater pollution. Nearly five decades after the Green Revolution the sustainability of Indian agriculture, and thereby the country's food security, are both facing a serious challenge. Water is vital to life, maintenance of ecological balance, economic development and sustenance of civilizations. Planning and management of water resources and its optimal use are a matter of urgency for most countries of the world, and even more so for India with a huge population. Growing population and expanding economic activities exert increasing demands on water for varied needs - domestic, industrial, agricultural etc. Groundwater occurs as one of the important resource and is being tapped for irrigation and public health water supplies for providing drinking water. On the other hand, quality of water resources is getting degraded with increasing urbanization and industrialization....