| Experimentation that studies on affection of fertilizer on Alfalfa'S yield and quality was carried at Tianshan animal-breeding bioengineering Ltd.Yushugou dyke toft.Come to a conclusion after statistical analysis:Fertilization Can accelerate alfalfa'S grow speed,promote the yield of alfalfa.When the N,P,KS fertilizer was fertilize singly,the yield come to the highest under the treatment 225kg/ hm2 carbamide, 562 .5kg/ hm2 super phosphate calcium,675kg/hm2 Sulfuric acid potassium,75kg/hm2 sulfur power,respectively is 14550kg/hm2,14550kg/hm2,13678.5 kg/hm2,12789 kg/hm2,respectively higher than comparison.28.3%,31.1%,20.6%,13.7%.When the N,P,K fertilizer was fertilize mixed,the yield of alfalfa come to the highest under the treatment calcium phosphate mixed with Sulfuric acid potassium,is 15860.80kg/hm2,higher than comparison 36.81%.The result of fertilize in spring better than fertilize in autumn.Spray rare element fertilizer and rare earth can increase the yield of alfalfa evidently.The yield come to the highest under the treatment 200ppm solution,is 16708.40 kg/hm2,higher than comparison 24.74%。Fertilization reduces the proportion between stem and leaf;increase the content of coarse egg white.When tIle N,P,K,S fertilizer was fertilize singly,the result of fertilize Sulfuric acid potassium is better.The treatment 225kgm2 is better at the first cut:Alfalfa egg white content is 19.36%,high than comparison27.90%,the treatment 450kgm2is better at the second cut:Affalfa egg white content is 20.05%,hip than cOmparison27.90%,when N,P,K fertilized mixed the treatment N+P+K is better,Alfalfa egg white content f two cuts respectively isl9.12%,19.90%,hip than comparison 17.4%.12.8%.When spray rare element fertilizer and rare earth,the treatment 100ppm rare earth is the best,Alfalfa egg white content f two cuts respectively isl9.12%,19.90%,high than comparison 17.4%,12.8%. Fertilize Can prompt income of alfalfa,the treatment 100ppm rare earth is the best:increases income 3678yuan/hm2.
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