[PDF] Top 20 Potassium dynamics in the soil and yield formation in a long term field experiment
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Potassium dynamics in the soil and yield formation in a long term field experiment
... the soil solution, which represents a very small fraction of total soil K, is an important indi- cator of K availability (Nye 1972) because the mainly diffusive flux of K to roots takes place in the ... See full document
5
Nitrogen use efficiency of maize and spring barley under potassium fertilization in long term field experiment
... rotation field experiment was carried on in 1985 at the experimental station of the Institute of Soil Science and Plant Cultivation, in Grabów, ...factorial experiment, four crops were grown ... See full document
5
Soil chemical properties as affected by tillage and crop rotation in a long-term field experiment
... analysis. Soil pH was measured in a 1:2.5 (w/v) soil to ...dry soil samples treated with 10% HCl (ÖNORM L 1084). Soil organic carbon (SOC) and total-N (N t ) were analysed by dry combustion ... See full document
6
Balance of potassium in two long-term field experiments with different fertilization treatments
... were obtained at variants without K fertilization. Comparison of both sites shows significantly higher content (by 34.6%) at the Hněvčeves site (with average values of 206 mg K/kg) than in Humpolec (153 mg K/kg). If the ... See full document
8
A leaky model of long-term soil phosphorus dynamics
... leakage term and partly from our very much higher estimate for l , differences that require justi fi cation if our fi ndings are to be ...four soil chronosequences yield best fi t values of the same ... See full document
10
Impact of shortened crop rotation of oilseed rape on soil and rhizosphere microbial diversity in relation to yield decline
... in yield relative to virgin OSR of up to 25%, but the mechanisms responsible are ...A long term field experiment of OSR grown in a range of rotations with wheat was used to determine ... See full document
13
Yield Formation and Consumption of Fertilizers by Cabbage in Long-Term and Systematic Use of Mineral Fertilizers
... The nutrient balance was calculated using a standard finite difference method and the balance of nitrogen, phosphorus and potassium was calculated in percent to removal. Overall balance values and balance of ... See full document
6
The changes of soil nitrogen and carbon contents in a long term field experiment under different systems of nitrogen fertilization
... of soil organic N and C compared to the non-fertilized control ...treatment. Soil organic matter, represented here as the C hws content, is more rapidly decomposed after the application of sewage sludge ... See full document
8
The influence of mineral fertilisers, farmyard manure, liming and sowing rate on winter wheat grain yields
... a long-term field experiment at 4 sites under different soil and climatic conditions in the Czech ...factor. Yield trends demonstrated remarkable influence of fertilisation at ... See full document
9
Concentrations of soil potassium after long term organic dairy production
... in soil K-concen- trations except in acid-soluble K on one ...the soil K-levels were generally medium to low, and were low in a large frac- tion of the topsoil samples on most ...in soil CEC seem to ... See full document
16
Changes of soil bioavailable phosphorus content in the long-term field fertilizing experiment
... in soil in long-term 18 years field experiments with different fertilizing ...The field experiments are located at three sites with different soil and climatic conditions in the ... See full document
6
Soil phosphorus and potassium availability in long term field experiments with organic and mineral fertilization
... 23-year long field experiment applying P ...grain yield since the N and K treat- ment did not increase yield compared with zero treatment (Takahashi and Anwar ...in soil P ... See full document
8
Long term field experiments – museum relics or scientific challenge?
... Schmalfuß soil formation trial in the object adam- Kuckhoff street (compare Merbach et ...of soil formation processes during the DFG (German research Foundation) funded focus programme 1090 ... See full document
8
Interannual dynamics of available potassium in a long term fertilization experiment
... an important question that can be answered with the help of long-term trials is the one concerning the long-term effects of contemporary K manage- ment. Fertilizer and manure application rates ... See full document
10
The long-term population dynamics of common wasps in their native and invaded range
... The two collections of observed wasp abundances and climatic variables in the native and invaded ranges are inherently multi- variate in their temporal dependence. A modelling approach that explicitly accounted for this ... See full document
12
Characterisation of soil organic matter in long term fallow experiment with respect to the soil hydrophobicity and wettability
... a long-term continual application of farmyard manure ...the soil fertilisation and soil ...addition, soil hydrophobicity was assessed through ... See full document
8
Long term effect of low potassium fertilization on its soil fractions
... K/ha/year and the average depletion of K fix was –12 kg K/ha/year. At soils of higher altitude K fix decrease exceeded the decrease of K avail , which can be ex- plained by a combined effect of lighter soils and a more ... See full document
6
Review of the evidence base for the status and change of soil carbon below 15cm from the soil surface in England and Wales (Report on Sub-project 3 of DEFRA Project SP1106)
... on soil surfaces (Eusterhues et ...bulk soil C which might mean that C is stabilised in other ways, such as aggregation, or that younger C adsorbs to mineral surfaces (Eusterhues et ... See full document
47
Yield responses of arable crops to liming - An evaluation of relationships between yields and soil pH from a long-term liming experiment
... Woburn soil was ...that soil type ...between soil pH and P availability (Simonsson et ...optimum soil pH for P uptake. However, pH is not the only soil property of im- portance: organic ... See full document
14
Potassium in soils under different cropping systems, 3. Non-exchangeable potassium in soils from long-term experiments at Rothamsted and Woburn
... Table 1 shows the total K uptakes by the rye- grass (first + resown crops) in the Classical and Ley-Arable soils that were retained for extra long cropping, together with the exchangeabl[r] ... See full document
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