Soil examination and Measurement of Tehsil Takht-e-Nasrati, Pakistan
Amare H, Joerg P, Edzo V, Demil T, Jan PL. 2005. Assessment of soil nutrient depletion and its spatial variability on smallholders’ mixed farming systems in Ethiopia using partial versus full nutrient balances. Agr. Ecosyst. Environ 108 (1), 1-16.
Bach EM, Baer SG, Meyer C K, Six J. 2010. Soil texture affects soil microbial and structural recovery during grassland restoration, Soil Biology and Biochemistry 42 (12), 2182-2191.
Bouyoucos GJ. 1962. Hydrometer method improved for making particle-size analysis of soils. Agron. J., 53, 464-465.
Darilek JL, Huang B, Wang ZG, Qi YB, Zhao YC, Sun WX, Gu ZQ, Shi XZ. 2009. Changes in soil fertility parameters and the environmental effects in a rapidly developing region of China. Agr. Ecosyst. Environ 129 (1-3), 286-292.
Doran JW, Sarrantonio M, Liebig MA. 1996. Soil health and sustainability. Adv. Agron. 56, 1-54.
Fida M, Khan S, Razzaq A, Nawaz I, Haq I. 2011. Fertility status of guava orchards in Kohat District of Pakistan. Journal of Soil Science and Environmental Management 3(9), 260-268.
Gee GW, Bauder JW. 1986. “Particle-size Analysis.” Method of Soil Analysis, p. 20-22.
Griffiths BS, Ball BC, Daniell TJ, Hallett PD, Neilson R,Wheatley RE, Osler G, Bohanec M. 2010. Integrating soil quality changes to arable agricultural systems following organic matter addition, or adoption of a ley-arable rotation. Appl. Soil Ecol. 46(1), 43-53.
Hu KL, Li H, Li BG, Huang YF. 2007. Spatial and temporal patterns of soil organic matter in the urban-rural transition zone of Beijing. Geoderma 141, 302-310.
Huang B, Sun WX, Zhao YC, Zhu J, Yang RQ, Zou Z, Ding F, Su JP. 2007. Temporal and spatial variability of soil organic matter and total nitrogen in an agricultural ecosystem as affected by farming practices. Geoderma 139(3-4), 336-345.
Hussain F. 1989. Field and Laboratory Manual of Plant Ecology. University Grants Commission, Islamabad.
Jackson MA. 1992. Soil Chemical Analysis. Constable and Co, Ltd., London.
Jin J, Xu Y, Ye H, Shen C, Huang Y. 2011. Effect of land use and soil management practices on soil fertility quality in North China cities’ urban fringe. African Journal of Agricultural Research 6(9), 2059-2065.
Liu E, Yan CY, Mei XR, He WQ, Bing SH, Ding LP, Liu Q, Liu S, Fan TL. 2010. Long-term effect of chemical fertilizer, straw, and manure on soil chemical and biological properties in northwest China. Geoderma 158, 173-180.
Liu N, Li XJ, Zhao GX, Yu KQ, Ma XY. 2006. Evaluation of soil quality in the Yellow River Delta based on GIS (in Chinese with English Abstract).Chinese J. Soil Sci. 37(6), 1053-1057.
Qi YB, Darilek JL, Huang B, Zhao YC, Sun WX, Gu ZQ. 2009. Evaluating soil quality indices in an agricultural region of Jiangsu Province, China. Geodema, 149(3-4), 325-334.
Samake O, Smaling EMA, Kropff MJ, Stomph TJ, Kodio A. 2005. Effect of cultivation practices on spatial variation of soil fertility and millet yields in the Sahel of Mali. Agr. Ecosyst. Environ 109 (3-4), 335-345.
Soltanpour PN. 1985. Use of ammonium bicarbonate-DTPA soil test to evaluate elemental availability and toxicity. Commun. Soil Sci. Plant Anal 16, 322-328.
Sun B, Zhou SL, Zhao QG. 2003. Evaluation of spatial and temporal changes of soil quality based on geostatistical analysis in the hill region of subtropical China. Geoderma 115, 85-99.
Von Uexkuell HR. 1988. Nutrient cycling in soil management and smallholder development in the Pacific Islands.In: IBSRAM (InternationalBoard for Soil Research and Management) Proceedings. Bangkok, p. 21.
Wang YQ, Zhang XC, Huang CQ. 2009. Spatial variability of soil total nitrogen and soil total phosphorus under different land uses in a small watershed on the Loess Plateau, China.Geoderma 150(1-2), 141- 149.
Zhang XY, Sui YY, Zhang YD, Meng K, Herbert SJ. 2007. Spatial variability of nutrient properties in Black soil of Northeast China. Pedosphere 17(1), 19-29.