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Articles by B.R. Maurya
Total Records ( 4 ) for B.R. Maurya
  Prem Kishor , A.K. Ghosh , Surendra Singh and B.R. Maurya
  Parthenium hysterophorus L., being a declared invasive weed is threatening the biodiversity and human health in several areas of India. Several researchers have documented the allelopathic effect of this weed. Therefore, Parthenium management would remain a great concern of the century. However, several studies proposed that Parthenium can be used as a Green manure, compost, biocontrol, soil ameliorate that may improve physical, chemical and biological properties of the soils and is a source of readily available plant micro- and macro-nutrients. Numerous studies revealed that the integrated use of Parthenium in soil modifies the physico-chemical, biological and nutritional quality of the soil. Parthenium has great potentiality in agriculture due to its efficacy in modification of soil health and crop performance. The high concentration of elements (N, P, K, Fe, Mn, Cu and Zn) in composted Parthenium increases the yield of many agricultural crops. An exhaustive review of numerous studies of last two decades took place in this study, which systematically covers the importance, scope and apprehension regarding utilization of Parthenium in agriculture. Parthenium hysterophorus can be used as a bioherbicide. Appreciable quantity of nutrients in Parthenium can be utilized to nourish the crops after composting and a lot of green Parthenium can be destroyed. This suggests that composting of uprooted Parthenium, or use as a green manure and Parthenium extract may reduce its spreading and inhibit the weed growth as well as menace of human health hazards worldwide.
  Prem Kishor , B.R. Maurya and A.K. Ghosh
  Parthenium can be utilized to nourish the crops after composting. The present investigation was aimed to assess the combined effect of N through Parthenium Compost (PCN) and urea (U) along with Azotobacter chroococcum on growth and yield of Triticum aestivum L. Salient chemical characteristics of Parthenium Compost (PC) such as total nutrient content (N, P, K and S) and biological characteristics such as total number of bacteria, fungi, azotobacter and Phosphate Solubilizing Bacteria (PSB) were 3.66x106, 9.67x 104, 2.33x106, 7.67x105 and 2.67x106, respectively. Total N, P, K and S in Parthenium compost were 1.58, 0.33, 1.64 and 0.29%, respectively and total micronutrients such as Fe, Mn, Zn and Cu were recorded 7829, 304, 116 and 66 ppm, respectively. Results revealed that 100% N through Parthenium compost is detrimental to wheat. Judicious use of 50% N through each of Parthenium compost and urea along with Azotobacter chroococcum was found to be beneficial for better growth and higher yields of wheat. Increasing temperature of compost pit could not destroy 100% viability of Parthenium seeds. Embryo dormancy exists in seeds of Parthenium hysterophorus that break down by heat shock. Application of bloomed Parthenium compost generated new plants of Parthenium in wheat. This suggests that composting of uprooted Parthenium before flowering may reduce its spreading as well as menace of human health hazards worldwide.
  B.R. Maurya , Vimal Singh and P.P. Dhyani
  Abundance of various kind of microorganisms and their activity in soil is a presumptive of fertility status of that soil. Hence, the present study was designed to assess the impact of altitudes on activity of two important soil health bioindicators in agricultural soils of Almora district of Central Himalaya. Seventy two soil samples were collected from agricultural lands at different altitudes of Almora, Uttarakhand, India and were assayed for their electro-chemical properties microbial colony forming unit (cfu) and microbial activities such as dehydrogenase and phosphatase following the standard procedures. It was recorded that soil was acidic in range with nitrogen, phosphorous and potassium in middle to high range. Also their content in soil increased at high altitude as compared to low altitude. Dehydrogenase and phosphatase activities varied with altitudes and these were high at higher altitudes. Dehydrogenase possessed a significant and positive correlation with nitrogen (r = 0.83) and phosphorous (r = 0.64) while phosphatase showed significant and positive correlation with organic carbon (r = 0.66). It was concluded that activity of dehydrogenase and phosphatase in soil would be an effective tool to assess the soil health.
  B.R. Maurya , Ashok Kumar , Richa Raghuwanshi and Vimal Singh
  Azotobacter and Azospirillum are known as non symbiotic free living nitrogen fixing biofertilizer microorganisms which actively participate in nutrients cycles. In eastern Uttar Pradesh of India, there is a great diversity in various cropping systems that may possess variation in these important biofertilizer microorganisms. The present study was conducted in order to chalk out the diversity of Azotobacter and Azospirillum sp. in different districts of eastern Uttar Pradesh in India with respect to the prevailing cropping system. Sixty two soil samples were collected from different crop rotations namely rice-wheat, vegetables, agroforestry and grassland for enumerating the diversity of Azotobacter and Azospirillum. The result showed that the Azotobacter population in rice-wheat, vegetables, agroforestry and grassland based crop rotations varied from 10x105 -13x105, 12x105-16.5x105, 9x105-15.5x105 and 7x105-10.5x105 CFU g-1 soil, respectively. Population of Azospirillum in rice-wheat, vegetables, agroforestry and grassland based crop rotations varied from 5.5x105-10.5x105, 6.5x105-12x105, 5x105-13x105 and 4.5x105-10x105 CFU g-1 soil, respectively. The diversity in population density of Azotobacter was maximum in soil of agroforestry followed by vegetables, grassland and lowest in rice-wheat based crop rotations, while in case of Azospirillum diversity was maximum in agroforestry and the lowest was observed in the rice-wheat but similar diversity present in vegetables and grassland crop rotations soil of eastern Uttar Pradesh. Overall maximum diversity of both the biofertilizer micro-organisms occurred in agroforestry based crop rotation.
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