Nitrogen, phosphorus and potassium increased up to September and declined afterwards in October. There was no much difference in nutrient of grasses under Chir-pine and open grassland. In below ground grass biomass lesser amount of nitrogen, phosphorus and potassium were recorded as compared to above ground biomass. Overall northern aspect recorded higher amount of N, P, K under tree and open grasslands.
1. Bawa, R. (1986). Structural and functional studies of three semi-grassland communities near Shimla. Ph.D. Thesis, H.P. University, Shimla: pp. 404.
2. Black, C.A. (1965). Method of soil analysis. Amer. Soc. Agron. Inc., Madison, Wisconsin, USA.
3. Balsky, J. (1992). Effect of tree quality on understorey gramineous forage in tropical Savanna. Tropical Grassland, 26(1):12-20.
4. Gupta, B. (1987). Structure, net primary productivity and nutrient cycling in grazed and ungrazed grassland ecosystem at Shardaghat, Shimla (India). Ph.D. Thesis, H.P. University, Shimla, pp. 575.
5. Koeing, A.E. and Johnson, A.J. (1942). A method of phosphorus estimation in plants. Ind. Eng. Chem. A.E., 14:155. https://doi.org/10.1021/i560102a026
6. Mishra, R. (1968). Ecology work book. Oxford & I.H.B. Publishing Co. Calcutta, India, pp. 244.
7. Piper, C.S. (1942). Soil and plant analysis. Hans Publishers, Bombay.
8. Sharma, B. (1991). Physico-chemical properties of Chir pine forest soil. M.Sc. Thesis, Dr. Y.S. Parmar UHF, Nauni, H.P. 55 p.
9. Singh, R.P. (1987). A note of grass production under conifer in H.P. Ind. For., 111(3):649-665.
10. Turner, J.; Cong, J.N. and Backiell, A. (1978). Understorey nutrient in age sequence of Douglas fir stands. Annuals Bot. US:1245. https://doi.org/10.1093/oxfordjournals.aob.a085544
Guleria, V., Nayital, R.K. and Gupta, B., 2002. Nutrient dynamics of grasses at different aspects under Chir pine (Pinus roxburghii) stands in mid hills of Himalayas. Indian Journal of Forestry, 25(4), pp.469-471. https://doi.org/10.54207/bsmps1000-2002-9S45HQ
Manuscript Published on 01 December 2002
Anyone you share the following link with will be able to read this content: