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Fine root development and mycorrhization in Norway spruce stands one year after fertilization with potassium sulphate and wood ash
forest fertilization fine root ectomycorrhizal fungi
2016/1/29
We compared the effects of forest fertilization with wood ash and potassium (K) sulphate on growth and mycorrhizal colonization of fine roots and on other soil microorganisms in Norway spruce (Picea a...
Effects of zeolite and vermicompost applications on potassium release from calcareous soils
available K Iran K fertility kinetic models non-exchangeable K
2015/3/10
Zeolite and vermicompost applications to soil may improve K fertility of soils. For this purpose, these materials were added to five representative calcareous soils collected from southern Iran. The t...
Potassium fixation in soil size fractions of arid soils
calcareous soils Iran smectite soil fractionation
2015/3/9
Amounts of potassium (K) fixed in soil fractions of 10 calcareous soils of southern Iran were measured to evaluate the contributions of different soil size fractions to K fixation. Soil particles were...
Effect of Reduced Application of Phosphate and Potassium Fertilizer on Sugar Beet Production in the Abashiri Area
Sugar beet Yield Phosphoric acid Potassium Low-input Brown andosol
2009/7/8
We examined the effect of reduced application of phosphate and potassium fertilizers on sugar beet production in brown andosol fields in the Abashiri area of Hokkaido in 2001∼2003. We could not...
Content of potassium forms in an anthropogenic soil formed from post-mining lands under diversified AGRICULTURAL PRACTICES
long-term experiment post-mining lands forms of potassium
2009/3/31
The current paper reports about the influence of different levels of fertilization and agricultural practices (i.e. shallow and deep ploughing) on the total content of potassium (Ktot) and its forms i...
The Ammonium Fixation in Great Soil Groups of Tokat Region and Some Factors Affecting The Fixation I. The Affect of Potassium on Ammonium Fixation
Ammonium Fixation Great Soil Groups of Tokat Region Fixation I.
2009/1/15
The objective of this study was to evaluate the fixation of ammonium in the soils of Tokat region to find out the important factors influencing them. For this purpose 12 representative soil samples we...
Effect of Potassium and Magnesium Fertilization on Yield and Nutrient Content of Rice Crop Grown on Artificial Siltation Soil
Potassium Magnesium Fertilization Yield Nutrient Content of Rice Crop Grown Artificial Siltation Soil
2009/1/14
The main purpose of this study was to determine the effect of potassium and magnesium fertilization on the yield and N, P, K, Mg, Fe, Cu, Zn, Mn contents of rice crop grown on soil used for cultivatio...
Potassium Potential of the Soils of the Gevaş Region in Eastern Anatolia
K - potential Clay mineralogy Eastern Anatolia
2009/1/13
Due to its semi-arid climate and sloping topography, Eastern Anatolia has limited soil resources for agriculture, strongly necessitating sustainable land management. Fertile soils occur only in limit...
Potassium Potential of the Soils of the Gevaş Region in Eastern Anatolia
K - potential Clay mineralogy Eastern Anatolia.
2009/1/13
Due to its semi-arid climate and sloping topography, Eastern Anatolia has limited soil resources for agriculture, strongly necessitating sustainable land management. Fertile soils occur only in limite...
Potassium Exchange Isotherms as a Plant Availability Index in Selected Calcareous Soils of Western Azarbaijan Province, Iran
Readily exchangeable K specific K sites buffering capacity energy of exchange K-index availability
2009/1/12
Potassium (K) exchange isotherms (quantity-intensity technique, Q/I) and K values derived from the Q-I relationship provide information about soil K availability. This investigation was conducted to ...
Potato Yield Quality, Quantity and Profitabilty as Affected by Soil and Foliar Potassium Application
Potato Yield Quality Soil and Foliar Potassium Application
2010/11/12
Application of FYM increased dry matter %, protein % and specific gravity of tubers in both seasons. Foliar and soil K addition decreased dry matter % in tubers, but increased protein % significantly ...
Effects of potassium, magnesium, and sulphur containing fertilizers on yield and quality of sugar beets (Beta vulgaris L.)
Kalimagnesia magnesium potassium sugar beet yield
2010/1/11
Effects of potassium (K), magnesium (Mg), and sulphur (S) containing fertilizers on root yield, refined sugar yield, and K, Mg, and S concentrations of leaf of sugar beet (Beta vulgaris L.) were studi...
Phosphorus and Potassium Fertilization of Disk-Till and No-Till Cotton
Phosphorus Potassium Fertilization Disk-Till No-Till Cotton
2008/12/9
Conservation-tillage practices have renewed interest in research evaluating fertilization responses of cotton. Research was conducted to evaluate the cotton-yield response to P and K fertilization und...
Response of Yield, Yield Components, and Fiber Properties of Egyptian Cotton (Gossypium barbadense L.) to Nitrogen Fertilization and Foliar-applied Potassium and Mepiquat Chloride
Yield Components Fiber Properties Egyptian Cotton Nitrogen Fertilization Foliar-applied Potassium
2008/12/9
Research to delineate nitrogen, potassium, and mepiquat chloride (MC) effects on cotton performance has been primarily conducted with upland cotton (Gossypium hirsutum L.). A field study was conducted...
Potassium Fertilization of Conventional- and No-Till Cotton
Conventional- and No-Till Cotton Potassium Fertilization
2008/5/12
Potassium fertilization meeting the uptake requirements of the fast-fruiting cotton (Gossypium hirsutum L.) cultivars requires information on soils of varying extractable K levels, tillage systems, an...