Soil & Fertilizers

06 Oct

Posted at 10:37h in Soil & Fertilizers
Ravinder Kumar 7 views

सटीक नाइट्रोजन उर्वरक प्रबंधन के लिए आधुनिक उपकरण और तकनीक Food production is commensurate with fertilizer usage. Among the three major fertilizers, nitrogen, phosphate and potassium, application of nitrogenous fertilizers is the maximum. It is reported that China, India and Pakistan together consume approximately 70% of nitrogen fertilizer consumed globally. These figures of nitrogen fertilizer consumption point towards emerging environmental pollution issues. The estimated food production demands would require application of N fertilizer to the tune of 116.0 million tonnes in 2016 and 58% of it would be required in Asia alone of which India’s share would be 30% (FAO Report, 2012). The consumption of N fertilizer in form of urea has increased many...

14 Sep

Posted at 06:27h in Soil & Fertilizers
JUGAL K. MALAV 8 views

मैग्नीशियम: फसल उत्पादन का एक भूलाा हुआ पोषक तत्व Magnesium nutrition of plants is frequently overlooked and shortages will adversely impact plant growth. Many essential plant functions require adequate Mg supplies, the most visible being its role in root formation, chlorophyll, and photosynthesis. Many less visible reactions are also dependent on an adequate supply of Mg. This review briefly summarizes some of the essential roles of Mg for plants. Magnesium was discovered by Sir Humphrey Davy in 1808 and essentiality for plant life was proved by Willstatter in 1906. Magnesium has a number of key functions in plants. Particular metabolic processes and reactions that are influenced by Mg include photo-phosphorylation such as ATP...

24 Aug

Posted at 08:22h in Soil & Fertilizers
Thamarai Thuvasan K* 12 views

सेलाइन (खारा) मिट्टी के सुधार की तकनीक Accumulation of excess salts in the root zone resulting in a partial or complete loss of soil productivity is a worldwide problem. Soil salinity has caused heavy loss of national wealth in India. Out of 329 million hectares of land in the country, about 175 million ha (53 %) is suffering from degradation. The extent of this problem area as given by different sources varies from 8.56 M ha to 10.9 M ha. According to Central Soil Salinity Research Institute (CSSRI), Karnal, 1.7 M ha of land is affected by salinity among the 6.7 M ha of salt affected land. World as a whole is...

24 Aug

Posted at 06:59h in Soil & Fertilizers
Jugal K. Malav 12 views

सिलिकॉन तत्‍व: पौधों में तनाव सहिष्णुता में सुधार के लिए लाभकारी घटक The beneficial effects of Si are mainly associated with its high deposition in plant tissues, enhancing their strength and rigidity. However, Si might play an active role in enhancing host resistance to plant diseases by stimulating defense reaction mechanisms. Because many plants are not able to accumulate Si at high enough levels to be beneficial, genetically manipulating the Si uptake capacity of the root might help plants to accumulate more Si and, hence, improve their ability to overcome biotic and abiotic stresses. A brief history of silicon in plants Silicon (Si) is the second most abundant element after oxygen in soil. Silicon...

12 Aug

Posted at 10:12h in Soil & Fertilizers
Dr.A.G.Rajalakshmi 2,300 views

मिट्टी में बायोकर और मायकोर्हाइज़े की परस्पर क्रिया Agricultural intensification transfer carbon (C) to the atmosphere in the form of carbon dioxide (CO2), thereby reducing ecosystem C pools. Agriculture contributes 10–12% of the total global anthropogenic greenhouse gas emissions. Diminishing increased levels of CO2 in the atmosphere by pyrolysis to convert biomass into biochar, which stabilizes the carbon (C) that is then applied to soil. Biochar withhigh concentrations of carbon that can be rather recalcitrant to decomposition, it stably sequestercarbon. The immediate beneficial effects of biochar additions for nutrient availability are largely due to higher potassium, phosphorus, and zinc availability, and to a lesser extent, calcium and copper. The presence of biochar in the...

29 Jul

Posted at 10:08h in Soil & Fertilizers
Jeevika K 13 views

कृषि‍ फसलों में फास्फोरस उपयोग दक्षता बढ़ाने के लिए रणनीतियां Phosphorus (P), an essential macronutrient for all living organisms, is a vital component for building blocks of genes and chromosomes. In plants, it plays a role in virtually all biochemical processes that involve energy transfer.  It is a constituent of adenosine triphosphate (ATP), which is often termed as ‘energy currency’ of the plant cell. In plant, P is essential for photosynthesis, respiration and root growth, flowering, fruiting, seed setting and seed yield. The total P content in agricultural crops ranges from 0.1 to 0.5%. Phosphorus is taken up by the plant as primary orthophosphate ion ( H2PO4- ) but it is also...

06 Jun

Posted at 10:38h in Soil & Fertilizers
राकेश गि‍री गोस्‍वामी 2,681 views

मृदा स्वास्थ्य को नि‍रंतर बनाए रखने के लिए मिट्टी कंडीशनर महत्वपूर्ण कारक  Soil conditioners as a source of plant nutrients has been found beneficial in improving Physical, Chemical and Biological conditions of soil, thereby increased productivity of crops. If the soil had very low pH, P and extractable Si then it is necessary to use soil conditioners for improving soil pH and some elements such as P and Si. Farmers can adopt this technology to improve the crop production.  A soil conditioner is a product which is added to soil to improve the soil’s physical qualities, especially its ability to provide nutrition for plants. In general usage the term soil conditioner is often...

15 Dec

Posted at 10:28h in Soil & Fertilizers
सीताराम देवांगन 5,441 views

Benefits of using bio-fertilizers in Vegetables and other crops. आज कृषि उत्पादन को लगातार बढ़ाना कृषि वैज्ञानिकों के सामने सबसे बड़ी चुनौती है। सघन खेती से मृदा में पोषक तत्व धीरे-धीरे कम होते जा रहे हैं। इस कमी को रासायनिक उर्वरकों के प्रयोग से पूरा किया जाता है। अधिकांश किसान संतृप्त मात्रा में रासायनिक खाद के उपयोग के बावजूद इष्टतम उत्पादन लेने से वंचित हैं और रासायनिक उर्वरकों के प्रयोग से होने वाला लाभ घटता जा रहा है। रासायनिक खाद के उपयोग का मृदा स्वास्थ्य पर भी विपरीत असर दिखाई पड़ रहा है। फसलों द्वारा भूमि से लिये जाने वाले प्राथमिक मुख्य पोषक तत्वों जैसे  नत्रजन, सुपर फास्फेट एवं पोटाश में...