[PDF] Top 20 Nitrogen balance and mineral nitrogen content in the soil in a long experiment with maize under different systems of N fertilization
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Nitrogen balance and mineral nitrogen content in the soil in a long experiment with maize under different systems of N fertilization
... of N min in the years of observation for the control, AS and manure ...the content of N min was sig- nificantly higher for manure, DAM, DAM + straw treat- ments than for the ...residual ... See full document
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The influence of organic and mineral nitrogen fertilizers on microbial biomass nitrogen and extractable organic nitrogen in long term experiments with maize
... organic nitrogen in the extraction by ...mg N/kg (Figure 2). Extractable organic nitrogen for applications of mineral nitrogen fer- tilizers was lower in comparison with the ...organic ... See full document
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Fluctuations of nitrogen levels in soil profile under conditions of a long term fertilization experiment
... affecting soil fertility (Heumann et al. 2002). the content of various forms of this element in the soil depends primarily on the processes of immobilization and organic matter ...the soil ... See full document
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Study on some soil quality changes obtained from long term experiments
... causes soil structure degradation and as a result it leads to changes in soil fertility and ...compare soil aggregate stability (SAS) and soil or- ganic matter (OM) quantity and quality in ... See full document
6
The contents of amino acids and sterols in maize plants growing under different nitrogen conditions
... the soil. transformation of ammonium to nitrate greatly enhances n mo- bility and thus increases the risk of n being lost through leaching from soil-plant ...effect different techniques ... See full document
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Effects of maize and winter wheat grown under different cultivation techniques on biological activity of soil
... in soil under two different cereals: com- mon maize and winter wheat, both grown in the same pattern of cultivation techniques: conventional (to 25 cm depth) and reduced (to 10 cm ...depth). ... See full document
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Dissolved organic carbon and dissolved nitrogen in soil under different fertilization treatments
... of long-term fertilization of a sandy soil with differentiated doses of cattle slurry as well as its after-effect action on the possibilities of migration of dissolved organic carbon (DOC) and ... See full document
9
Effect of biowaste compost and nitrogen fertilization on water properties of Mollic-gleyic Fluvisol
... and nitrogen fertilization on the soil water properties was tested in a long-term crop rotation experiment established in 1992 on a silty loam Mollic-gleyic Fluvisol in eastern Austria ... See full document
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The changes of soil nitrogen and carbon contents in a long term field experiment under different systems of nitrogen fertilization
... fects soil fertility (Kubát and Lipavský 2006); it consists of primary organic matter (POM) and ...(POM content decreases as a result of CO 2 release) and humification and it is a source of energy for ... See full document
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Nitrous oxide emissions from the soil under different fertilization systems on a long term experiment
... of N 2 O emission from agricultural soils subject to different fertilization ...a long-term experiment field in Skierniewice in Central Poland maintained with no alterations since 1923 ... See full document
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Comparison of the effect of various long-term fertilization systems on the content and fractional composition of humic compounds in Lessive soil
... Long-term fertilization systems contributed signifi- cantly to the increase in the content of total organic carbon and total nitrogen in the ...the fertilization with cattle ... See full document
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Fractions of humus compounds in soil fertilised with sewage sludge and vermicomposts
... low-polymerised fractions in humus compounds and an increase in the share of humus substances which do not undergo hydrolysis by the applied extractants and no directed influence of the applied fertilisation on C Ha : C ... See full document
6
Nitrogen Distribution Model: A Farmer and Farm Centred Model to Monitor N Movement in the Soil
... sugar content in sugar beets, and may lead to an accumulation of nitrate in the edible foliage of plants such as spinach and forage crops ...[2]. N can contaminate groundwater to a point at which it may ... See full document
8
Repeated use of green manure catch crops in organic cereal production grain yields and nitrogen supply
... of N in aboveground biomass of the undersown crops ...of N in aboveground biomass was considerable in treatments 3 and 4 (with undersown clover) during the autumn of 2002 and ...of N in biomass was ... See full document
5
The influence of fertilisation and crop rotation on soil microbial characteristics in the long term field experiment
... with nitrogen, not only increases soil fertility but also influences its chemical, physical and biologi- cal ...in long-term field experiments. There is no doubt that mineral fertilisation ... See full document
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Purification of Active Peroxidase Isoenzymes and Their Responses to Nitrogen Fertilization and Rotation of Biomass Sorghum
... Peroxidases (EC 1.11.1.7) participate in lignin biosynthesis. But peroxidation is not a tool for assaying lignocellulose metabolism because the active cannot yet be separated from the inactive peroxidases. A biochemical ... See full document
8
Application of the chlorophyll fluorescence ratio in evaluation of paddy rice nitrogen status
... of N fertilization, resulting in different ...of different N fertilization levels displayed significant ...and different doses of N fertilization was ... See full document
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Impact of nitrogen fertilization on soil respiration and net ecosystem production in maize
... implement N management practices that can sustainably improve crop yields while also reducing the impact of N on the environ- ...reducing N application rates (Ayeni ...of different ... See full document
8
The use of humic acid urea fertilizer for increasing yield and utilization of nitrogen in sweet potato
... in nitrogen fertilizer application increase crop ...reduces nitrogen fertilizer use efficiency (NUE), enhances nitrogen loss and potential to pollute the soil, water bodies, ground water and ... See full document
6
Evaluation of the mercury content of loamy sand soil after long-term nitrogen and potassium fertilization
... of soil parameters affected by ...of nitrogen and potassium fertilizers, on the basis of constant dose of phosphorous fertilizers, led to changes in val- ues of acidification indicators (pH, Hh) (Table ... See full document
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