Alfalfa is a grass species cultivated mainly by grass and animal husbandry in China. Because of its high nutrition and good palatability, it is known as the king of pasture. However, the low yield of alfalfa is its shortcoming. In addition, the variety and variety of domestic alfalfa varieties are seriously degraded, which affects the planter's planting efficiency and planting enthusiasm. Karen big-leafhopper is a new variety introduced from the United States. This variety is not only Rich, fresh grass production has also been greatly improved, and it has great promotion value. 1. High grass yield, about 1.2 meters in height, and large and dense leaves. The leaves of the whole plant account for more than 60% of the fresh grass weight, and the flowers are mostly purple. The comparative test of special species of animals and plants improved in Minquan County Karen crickets can be castrated 4-6 times a year, and mu grass fresh grass can reach 1.5-3.5 million jins. Increased yield by more than 1 times than other glutinous varieties. This is rare in high-nutrition pasture. Second, high nutrition. Karen wolfberry has increased its nutrient content more than common oysters, while the output has increased substantially. It was determined that: Karen’s dry matter contains 25% to 32% of crude protein, which is more than twice that of corn, and crude fat. 7.1%, 21.5% crude fiber, in addition to a variety of trace elements, is a rare high-protein feed. Karen’s palatability is excellent, and cattle, sheep, pigs, rabbits, fish and other herbivorous livestock and poultry are very fond of eating. Feeding beef cattle with fresh grass can increase the weight gain rate of sheep by 15%-25% over other pastures. Mu-Kalun Temple has 10 direct fertile beef cattle or more than 30 sheep. The economic benefits are very impressive. Third, easy management. Karen's root system is well developed and its root depth can reach 3-7 meters. The variety is deeply rooted in the root system, and it is drought-resistant, cold-resistant, and highly resistant. It can withstand temperatures of minus 38 degrees Celsius and temperatures as high as 409 degrees Celsius without selecting soil. Climate and genetics are relatively stable. In addition to cultivation in fertile fields, they can also be planted in poor soils such as mountains and hills, all of which can achieve good results. It should be pointed out that Karen is slightly less resistant to disease, and it is unfit for planting in long-term plots and poorly drained areas. In addition, due to better palatability, direct feed grazing should control its feed intake in order to avoid bulimia and bovine bulimia in bulls and other ruminants.
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