Efficient use of grassland resources in the grass and Technology
Technology Introduction subtropical regions in southern China, 10 million mu of grass slopes, which may use an area of about 7 million mu. This part of the grassland resources hydrothermal condition is superior, high production potential. But the natural vegetation growing season is short, low forage yield, forage quality poor. To achieve efficient use of grass slopes, first of all must be improved grassland, planting high yield and quality of artificial turf; second to adopt appropriate management techniques to maintain the artificial turf of sustained yield and quality; Finally, it must use the appropriate use of technology to production The grass are the most effective use and transformation. Grass grassland improvement and efficient use of supporting technology, grass yield per unit area can achieve the natural grassland of 5 to 10 times, greatly improving the quality of feed and maintain the sustained high quality grass, a significant increase in livestock production performance.
The core of the technology are three: first, grassland improvement technologies; second, sustained high yield and quality of artificial turf management techniques; third grazing system optimization techniques. These three technologies supporting the use of high altitude in the south (1,000 meters to 2,500 meters) of grass forage grass dry matter yield per hectare can reach 8,000 kg to 10,000 kg per hectare carrying capacity 8 to 10 sheep unit dry matter crude protein content of 12% to 15%, more than 65% digestibility, and maintain sustained yield and quality of grassland.
Practice for the operation of improved technologies grass grassland soil preparation and seedbed preparation points: for soil testing, diagnosis, application of basal fertilizer (organic manure or fertilizer), choose the appropriate forage species (Lolium, Dactylis, Trifolium repens, red clover, tall fescue, etc.), use high quality certified seeds, legumes Rhizobium inoculation of seed, grass and legume mixture, determine the appropriate seeding rate and sowing time (spring or autumn), Weed control seedling appropriate protection.
Grassland Sustainable Yield management: The key is to grazing and clipping operation pressure and soil fertility management. Include the maintenance of adequate fertilizer application each year (early spring application of fertilizer per hectare per year 225 kg to 300 kg, 75 kg potash per hectare to 150 kg) to maintain an appropriate use of grassland (pasture biomass per hectare in 1000 kg to 3000 kg DM context); avoid grass heading, aging, dead, warm-season grass growth and excess modulation timely cutting hay or silage; through the appropriate use and fertilizer, to maintain the multi-leaf grass, dense vegetative state, to maintain the proportion of beans Wo about 1:3.
Grazing system optimization rules to fixed points of grass livestock, according to forage production to determine the appropriate stocking rate; construction area fence, using rotational grazing systems (including Diamond Bar grazing young animals); monitoring grass growth rates, determined month by month or every ten of the forage supply (growth), according to animal type, quantity and targeting of forage production demand, the establishment of livestock supply and demand dynamic balanced budget; lambing or calving facility began in the spring pasture time of rapid growth (usually in mid-March), in July and August were stored forage cutting about 1,500 kilograms per hectare of dry matter, in January, February, March were stored forage supplement of 210 kg per hectare, 310 kg and 410 kg of dry matter to ensure that late pregnancy and early lactation dams and young animals of the nutritional needs for the dams in the autumn to provide sufficient high-quality forage, to ensure animals have a higher reproductive rate; winter before the sale of goods out of meat, livestock and livestock fattening . Note the new artificial turf
need for adequate protection against grazing, once the grass began to tiller or branch, you can light grazing. Planting grass has been successful not to place undue protection from weeds, grass is too mature and aging, nutrition, decline in value; grass planted on steep slopes should pay attention to soil erosion, the best in the fall soil preparation, planting; spring or summer precipitation intensity, making it easy loss of topsoil erosion. Prevention and control of pasture pests and diseases that may occur; partition fence can be used with concrete, wood piles, plus wire "project fence" can also be local materials, construction wood from the bush Gachaou composed of "bio-fence" to form a forest belt of rotational grazing district.
Source: S – Agriculture Online – China Animal Husbandry and Veterinary Report
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This is an interesting project. However the rotational grazing proposed is very old technology from the 1960’s we have much more economical and profitable methods developed now for achieving healthy soils, high bio-diversity, high weight gains on livestock, and very much higher bio-mass production of the forage plants.