Study On Potential Yield Of Xilinguole Grassland

The thesis is based on the theory of economize water and increase products and the latest development of recent other results of research ,and make a trail study and put forward strategy on the growing principle and the potential productivity of the grassland .In order to completely reflect the potential productivity of the whole grassland of Xilinguole Grassland in the meadow grassland in Xiwu Banner,(the typical example of middle part of desert grassland )we made expensive research and experiments in (desert) ,and dissect exhaustively the natural condition ,geographical features ,the condition of climate ,the earth and the plants, and we put forward the following conclusions based on the approach of grassland potential productivity :(1) All kinds of grass in different rainfall intensity ,the growth of the grass is that high flow year is the best and ordinary year is better than dry year .The former is 0.15～0.60kg/mm than later .It is show that the different in potential use of moisture in different rainfall intensity year is obviously (2)The main limiting factor which affect the grassland potential productivity are that ①The moisture supply to grassland is net considerable ;②Soil productivity level is low and the grassland is lack of water ; ③The shifty climate can affect the grassland productivity (3) The ordinary value of the three sort of grassland in real yield was 2335kg/mm ,and the level of exploitation was 49.8%;Demostration –field was exploited at 65.6%and its average yield was 3101kg/mm; Experiment –field was 76.9% exploited and its average yield was 3592/mm. Recently from year 1996 to 2005 it can be exploited at 9.7% and metaphase (from year 2006 to 2015) it can be exploited at 20.0% .It shows that we provided increase some necessary material and technology, moreover raise the level of management, the production of grass can be improved obviously. (4) It tables a proposal to all kinds of grassland in moisture potential productivity in Xilinguole ①Coordinate the animal husbandry structure which is mainly vegetarian ;②Establish the institution about plant of forage grass which is adapt to all kinds of grass ;③Choose the variety which is good at drought resistance and high Production ;④Increase the level of fertilizer practice ; raise the ability of goodness provision ;⑤ The irrigating water quota ,number of irrigation and frequency of irrigation ,which is sure to provide the water in time to the forage grass field and get highly stable yield .