To optimize the artificial cultivation model of Astragalus dahuricus （Pall.） DC.， this study used a wild domesticated variety from the Hunshandak Sandy Land in Inner Mongolia as material， and employed a three-factor four-level orthogonal experimental design to investigate the effects of row spacing （40， 50， 60， 70 cm）， seeding rate （10， 15， 20， 25 kg·hm^-2）， and the application amount of nitrogen-phosphorus-potassium compound fertilizer （105， 210， 315， 420 kg·hm^-2） on yield and quality. Results showed that row spacing had the greatest effect on forage yield， with the order of influence being row spacing>seeding rate>fertilizer application rate. The orthogonal experiment range analysis identified the optimal cultivation combination for forage yield as 40 cm row spacing， 25 kg·hm^-2 seeding rate， and 315 kg·hm^-2 fertilizer application rate， under which the fresh and dry forage yields were the highest. Different cultivation measures had no significant effects on the contents of Neutral detergent fiber， Acid detergent fiber， Crude protein， Coarse ash， Stem-Leaf Ratio and Ether extract content. However， given the critical role of forage quality in production systems， a comprehensive evaluation integrating quality indices and yield was performed using the entropy weight method. The optimal cultivation regime balancing yield-quality synergy was ultimately established as： 50 cm row spacing， 25 kg·hm^-2 seeding rate， and 420 kg·hm^-2 fertilization rate. This study provides a scientific basis for the large-scale cultivation of A. dahuricus， and is of significant importance for improving forage production efficiency in the sandy lands of northern China.

Astragalus dahuricus  /  Row spacing  /  Seeding rate  /  Fertilizer amount  /  Forage yield  /  Forage quality