Effects of Different Mixed Sowing Patterns on Production Performance of Legume-Grass Mixture
The sustainable management and production performance of legume-grass mixture were studied, and the forage yield, composition and quality in four legume-grass combinations: 6 species mixture, 5 species mixture, 4 species mixture, 3 species mixture at three seeding ratios; 5 : 5, 4 '? 6, 3 ! 7 were measured. Forage yield, legume/grass yield ratios, stem-leaf ratio, relative yield (RY), total relative yield (TRY) and yield of crude protein (YCP) , ether extract (EE) and neutral detergent fiber (NDF) were used to determine production performance under different legume-grass mixed sowing patterns. The results showed that it was significantly different between legume-grass mixture and monoculture in forage yield, YCP and EE (P<0. 05). The total of TRY of different mixed sowing patterns was significantly more than 1 in all mixed sowing patterns (P<0. 05). Forage yield, legume/grass yield ratios, the total of TRY, CP yield and EE yield of mixed 6 species were higher than other mixed species. The legume/grass yield ratios, NDF yield at seeding rate of 5 ' 5 of legume : grass were higher than other mixed sowing rate, and the total of TRY gradually increased from June 16 to September 1. The annual yield of CP and EE at sowing rate of 3 '? 7 of legume;grass were higher than other mixed sowing rate. The stem-leaf ratio of sainfoin (Onobrychis viciaefolia) in legume-grass mixture was higher than other mixed patterns. The stem-leaf ratio significantly decreased in September 1, and the second mowing may improve the palatability of forage. The production performance in different mixed sowing patterns depended on both forage yield and quality. And the forage yield and quality were regulated by composition of mixture community.
NETL
NSTL
万方数据
维普
