The study was aimed to determine the effect of soil ameliorant and inorganic fertilizers on nodulation and yield of some soybean varieties. Study was conducted under greenhouse condition in acid soils. Results revealed that all the tested varieties were compatible with native rhizobium at both study areas and showing the formation of nodules. A positive correlation was reported between the numb...

In permanent agricultural systems, soil fertility is maintained through applications of manure, other organic materials, inorganic fertilizers, lime, the inclusion of legumes in the cropping systems, or a combination of these. In many parts of the world the availability, use, and profitability of inorganic fertilizers have been low whereas there has been an intensification of land-use and an ex...

The effects of long-term lime and K applications on quantity-intensity (Q/I) relationships were investigated on the Ap and B21t horizons of a Kalmia soil (a fine-loamy over sandy or sandy-skeletal, siliceous thermic (Typic Hapludults) from the Delaware Coastal Plain. The predominant mineral suite of the <2faa clay fraction was mica, vermiculite, and chloritized vermiculite. Soil pH and exchange...

the use of various slags as by-products of steel industry is well established in civil engineering applications. however, the use of bos slag in the area of soil stabilization has not been fully researched and developed despite having similar chemical composition and mineralogy to that of portland cement. this paper reports on efforts to extend the use of bos slag to soil stabilization by deter...

4. BROW-N, J. C., R. S. HOLMES, AND L. 0. TIFFIN. 1958. Iron chlorosis in soybeans as related to the genotype of rootstock. Soil Sci. 86: 75-82. 5. DEKOCK, P. C. AND R. J. MORRISON. 1958. The metabolism of chlorotic leaves. 2. Organ.c acids. Biochem. J. 70: 272-77. 6. DICKMAN, S. R. AND A. A. CLOUTIER. 1951. Factors affecting the activity of aconitase. J. Biol. Chem. 188: 379-88. 7. ILJIN, WV. ...

This research was conducted to investigate the relationships between soil(organic matter, potassium, phosphorous, sodium, fine gravel, soil texture, EC, lime,gypsum, nitrogen) and environmental (elevation, slope) factors with distribution ofvegetation types in rangelands of Sabzdasht, located in Bafgh, Yazd province at 2012. Forthis purpose, four vegetation types were selected as follows: Artem...

A low-input cropping system has been developed at Yurimiaguas, Peru, to serve as a transition technology between shifting and continuous cultivation for acid soiln of the humid tropics. Principal features are slash-andburn clearing, rotation of acid-tolerant upland rice and cowpea cultivars, maximum residue return, no tillage, and no lime or fertilizer apoiications. When yields decline as a res...

A study was designed to evaluate the micronutrients status of soils of district Palandri, Azad Kashmir and to correlate the micronutrients with Physico-chemical characteristics of soil as well as to categorize the soils as high, medium and low in Cu, Zn, Fe, Mn and HWS B. Soil samples were collected from thirty wheat fields and thirty apple orchard soils during 2003. None of the soil sample was...