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Query: UNIPROT:P20366 (substance P)
 21,176 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

A long-term field experiment and ICP-AES analysis were conducted to study concentration and content of micronutrients Mn and Zn in maize under different fertilization systems. The results were as follows: (1) Concentrations of Mn in maize under NPKM and NPK treatments were significantly higher than those in M and control treatments. The concentration of Zn in grain of maize was similar under different treatments. The control treatment had the highest concentration of Zn in stalk, while NPKM treatment had the lowest one. (2) Contents of Mn and Zn increased with increasing yields of maize, and the regression relationship between the contents and yield of stalk was better than that between the contents and yield of grain. (3) Most of Mn and almost half of Zn were concentrated in stalk. The distribution and use efficiency of micronutrients were optimized under NPKM and NPK treatments. Returning the stalk to soil is an effective strategy for micronutrients sustainable utilization in agro-ecosystem.
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PMID:[Determination of concentrations and distributions of Mn and Zn in maize under different fertilization regime using ICP-AES]. 2132 52

The recycling rate and budget of Mn and Cu under different fertilization regimes by using long-term field experiment and ICP-AES analysis were investigated in the present paper. The results showed that the recycling rates of Mn and Cu were greater than 80% because of sediment recycling type, and the values increased with the amount of feed stuffs increasing. Both the two elements under different fertilization regimes showed budget deficit, with the deficit order of M< (or < or =)NPK + M < CK < NPK, showing that chemical fertilizer application might induce severe deficit, while application of recycling organic matter might minimize the unbalance.
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PMID:[The recycling rate and budget of trace element Mn and Cu in agroecosystem using ICP-AES]. 2225 May 69

Large quantity of composite propellants is produced as waste due to life expiry of missiles/rejection of propellant lots during manufacturing. The environmental protection agency does not allow the hazardous materials for open burning/open detonation. Therefore, a systematic study has been carried out to develop a method for the disposal of composite propellant into liquid fertilizer without affecting the environment. In this study, propellant compositions were digested in dilute nitric acid followed by neutralization with 5M KOH solution to get precipitated out aluminium as aluminium hydroxide and finally the obtained liquid was treated with orthophosphoric acid for further neutralization. The liquid fertilizer, thus, obtained was characterized for nitrate and phosphate content using ion chromatography while ICP-AES was used for the estimation of potassium, aluminium and other noxious metallic elements such as Pb, Cd, As, Cr, Cu, Ni and Zn. The analyses data indicate that liquid fertilizer is free from aluminium and noxious metallic elements while ratio of nitrogen, phosphorous and potassium are close to the Indian NPK value.
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PMID:Development of an eco-friendly method to convert life expired composite propellant into liquid fertilizer. 2226 54

The concentration and distribution of Mn and Zn in soil and soybean in lower reach of Liaohe River Plain were investigated with ICP-AES analysis. The results showed that the available Zn in soils was close to the critical value and the monitoring should be strengthened. Zn concentration in seed and stalk, coupled with Mn in stalk, was not affected by fertilization types, while Mn concentration in seed under NPK and NPKO treatments was significantly higher than that with O and CK treatments. Application of organic and inorganic fertilizer increased crop biomass, and consequently increased Mn and Zn storage in soybean. In soil-crop system, Mn and Zn under different fertilization regimes showed budget deficit, with the deficit order of NPKO < O < CK < NPK, indicating that nutrient cycling could decrease the deficit significantly and keep the ecological systems more sustainable.
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PMID:[Analysis on concentration, distribution and budgets of Mn and Zn in soybean by using ICP-AES]. 2384 39