Soil & Fertilizers

06 Jan

Posted at 09:12h in Soil & Fertilizers
विनोद कुमार 4,953 views

Production technique of Blue Green Algae (BGA) and its usage. पौधों के समुचित विकास के लिए नाइट्रोजन एक आवश्यक पोषक तत्व है।  रासायनिक उर्वरकों के अलावा शैवाल तथा जीवाणु की कुछ प्रजातियां वायुमंडलीय नाइट्रोजन (80 प्रतिशत) का स्थिरीकरण कर मूदा तथा पौधों को देती है और फसल के उत्पादकता में वृद्वि करती है। इस क्रिया को जैविक नाइट्रोजन स्थिरीकरण कहते हैं।  इन सूक्ष्म जीवाणुओं को ही जैव उर्वरक कहते हैं।  नील-हरित शैवाल एक विशेष प्रकार की काई होती है। नील हरति शैवाल उत्‍पादन की वि‍धि‍ इस प्रकार है  नील-हरित शैवाल की प्रजातियांः जलाक्रान्त दशा, जिसमें धान उगाया जाता है, नील-हरित शैवाल की औलोसिरा, ऐनाबिना, ऐनाबिनाप्सिम, कैलोथ्रिक्स, कैम्पाइलोनिया, सिलिन्ड्रो स्पमर्म फिश्येरला, हैप्लोसीफान, साइक्रोकीटे, नास्टोक, वेस्टिलोप्सिम...

05 Jan

Posted at 04:25h in Soil & Fertilizers
राज कुमार सिंह 6,698 views

Importance of sulfur in oilseed crops तिलहनी फसलें भारतीय आहार में महत्वपूर्ण भूमिका निभा रहीं है।  इसका उत्पादन लगभग 24 मिलियन टन हो रहा है। तिलहन फसल के लिए संतुलित उर्वरक का प्रयोग आवश्यक है, जिसमें नत्राजन, फास्फोरस, पोटाश, गंधक, जिंक व बोरान तत्व अति आवश्यक है।  गत वर्षों में सन्तुलित उर्वरकों के अन्तर्गत केवल नत्राजन, फास्फोरस एवं पोटाश के उपयाेग पर बल दिया गया।  सल्फर के उपयोग पर विशेष ध्यान न दिये जाने के कारण मृदा के नमूनों में 40 प्रतिशत गंधक (सल्फर) की कमी पाई गई।  आज उपयोग में आ रहे गंधक रहित उर्वरकों जैैसे यूरिया, डी0ए0पी0, एन0पी0 के0 तथा म्यूरेट आफ पोटाश के उपयोग से गंधक की कमी निरन्तर...

01 Dec

Posted at 09:18h in Soil & Fertilizers
Dr. Namita Das Saha 5,823 views

अधि‍क फसल वृद्धि के लिए प्लांट ग्रोथ को बढ़ावा देनेे वाले राइज़ोबैक्टेरिया (पीजीपीआर)  का उपयोग  Soil harbors several beneficial microorganisms and some of them colonize in the rhizospheric zone and enhance plant growth. Such bacteria are generally designated as PGPR (Plant Growth-Promoting Rhizobacteria). Plant growth-promoting rhizobacteria (PGPR) was first defined by Kloepper and Schrot  to describe soil bacteria that colonize the roots of plants following inoculation onto seed and that enhance plant growth. Forms of Plant Growth Promoting Rhizobacterial (पौधे का वि‍कास बढाने वाले  राईजोबैट्रीयल के रूप ) Plant growth promoting rhizobacteria can be classified into extracellular plant growth promoting rhizobacteria (ePGPR) and intracellular plant growth promoting rhizobacteria (iPGPR). The ePGPRs may exist in the rhizosphere, on the rhizoplane or...

16 Nov

Posted at 06:48h in Soil & Fertilizers
MK Jatav 1,949 views

 भारत के आलू उगाने वाले क्षेत्रों में पी उपलब्धता के आधार पर फॉस्फोरस उर्वरकों की सिफारिश Phosphorus is one of the key nutrients required for higher and sustained productivity of potato and its influence on tuber yield is very well established. Maximum potato yield occurs when sufficient P is available during early vegetative development and the entire period of tuber growth. Total plant P uptake increases rapidly during tuber initiation, levels off to a constant rate during tuber bulking, and ceases with plant maturation occurs primarily through the transfer of P reserves from the vine and roots. Phosphorus uptake by potatoes is relatively low compared with uptake of potassium or nitrogen but similar to...

13 Oct

Posted at 10:12h in Soil & Fertilizers
Nirmalendu Basak 2,144 views

मिट्टी में पोषक तत्वों की उपलब्धता में वृद्धि के लिए फसल अवशेषाेें का रखरखाव Crop residues have multiple uses on agricultural and allied sectors. Rice-wheat is the founder cropping system of Indo-Gangetic Plains (IGP) of South Asia which support food and energy source of a millions. Burning and/or removal of crop residue are not economical rather than endanger to ecosystem functions. A multiple problems are faced by crop growers on managing residues at time of harvesting to proceed for next crop. However, by adopting some useful interventions, a sizeable quantity of primary plant nutrients can be supplemented in soil without sacrificing the economic return of targeted crop. Crop residues are organic vegetative crop...

09 Oct

Posted at 08:47h in Soil & Fertilizers
Jugal K. Malav 6,795 views

समस्याग्रस्त मिट्टी का प्रबंधन कैसे करें For the management of problematic soils,  some general principles has to be considered for proper implementation of the reclamation measures. The total soluble salt concentrations in the root zone have to be decreased to control osmotic effects on plant growth. Maintenance of total soil moisture tension must be ensured at optimum level so that plant roots can absorb an adequate amount of water. Water flows through the soil in the direction of maximum decrease of hydraulic head and the flow velocity is proportional to the hydraulic gradient. The design and layout of drainage system are controlled by this principle. The availability of good quality water is of paramount for...

09 Oct

Posted at 04:46h in Soil & Fertilizers
K.Jeevika 5,213 views

मृदा पोषण में तरल जैवि‍क खाद की भूमिका Manures are organic materials with plant nutrients in small concentrations. Organic manures are the main source of replenishing soil fertility. Organic farming is an internationally regulated legally enforced and standardized alternative paradigm relies on ecological processes, biodiversity for sustaining the health of soil. Solid organic fertilizer, cattle manure and green manure are the most nutritive organic fertilizers with an average nitrogen (N) content of 1.5%. Now a days Liquid Organic Manure has largely remained in background of bio-dynamic farming. The plant can absorb nutrients about 20 times fast through the leaves than applied through the soil. Therefore, liquid manures are helpful to overcome temporary nutrient shortages. In organic...

07 Oct

Posted at 10:00h in Soil & Fertilizers
Thamarai Thuvasan K 2,934 views

धान फसल में नाइट्रोजन उर्वरक प्रबंधन में लीफ कलर चार्ट की भूमिका Paddy is the most staple and nutritive food crop for world human population and other animals.It requires nutrient elements for their establishment and survival. Among those nutrient elements, nitrogen (N) is the most important nutrient which is essential for photosynthesis and thereby increases the yield. Unlike other crops, N can be managed effectively at real time all the stages of crop growth by using Leaf Colour Chart (LCC). Even this technique is being in use for several years, most of the formers are not aware of this technique. But this is simple, inexpensive and easy technique to manage the N in...

06 Oct

Posted at 10:37h in Soil & Fertilizers
Ravinder Kumar 5 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 5 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...