Study on production performance and nutritional quality of alfalfa at different autumn dormancy levels among walnut forests in Southern Xinjiang region
SU Yang
LIANG Chen
ZHANG Shuzhen
YUE Haiyan
PENG Fengjun
ZHANG Bo
JIANG Lifeng
SUN Hongbo
Abstract：The aim of this experiment was to investigate the effects of different autumn dormancy levels and sowing density on the production performance and nutritional quality of alfalfa.A two-factor random block design was adopted among walnut forests in Hotan area.Three sowing density levels were set,which were 15.0,22.5 and 30.0 kg/hm2,represented by M1,M2 and M3,respectively.Four autumn dormancy levels were set,which were 7th Saiwo,8th Elite,9th Superpower and 10th WL712.The performance,nutritional quality and greening rate of alfalfa were measured by Q7,Q8,Q9 and Q10 respectively.The results showed that the plant height of Q9·MI sowing scheme was the highest in the first and second crops,which were 79.68 and 72.72 cm,respectively.In the third crop,the plant height of Q10·M3 sowing scheme was the highest,which was 72.18 cm.Under Q9·M3 seeding scheme,the total annual output of fresh and hay were the highest,which were 22 401.13 and 6 667.01 kg/hm2,respectively.The crude protein content of Q9·M2 in the second crop was the highest,and the relative feeding value of QI0·M2 in the 2nd crop was the highest.The study indicates that high yield and high quality forage grass can be obtained by selecting the Q9 alfalfa variety with the sowing density of 22.5 kg/hm2.
Keywords：walnut forest cultivationautumn dormancy levelalfalfaproduction performancenutritional quality
Publication Date：2025-02-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 103-108 )