不同播期对科尔沁沙地冬黑麦返青率与生产性能的影响

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中图分类号：S543 文献标识码：A 文章编号：1007-0435（2025）12-4222-08

引用格式：，等.不同播期对科尔沁沙地冬黑麦返青率与生产性能的影响[J].草地学报，2025，33（12）： 4222-4229 XU Ming-liang，WANG Xian-guo，REN Wei，etal.The Impacts of Sowing Dates on the Regreening Rate and Pro duction Performanceof WinterRye in the Horqin SandyLand[J].Acta Agrestia Sinica，2025，33（12）：422—4229

The Impacts of Sowing Dates on the Regreening Rate and Production Performance of Winter Rye in the Horqin SandyLand

XU Ming-liang1，WANG Xian-guo²*， REN Wei²，WANG Zhen-guo³， CUI Feng-juan³， CONG Long- ⋅li3 ， ZHANG Yu-xial

（1.ColegeofrcureeguUesitgollofss

TechnologyhigricuturalUesityengO3，ina；3.ongadeofgiculualdnialHusbadr， Tongliao，Inner Mongolia O280l5，China）

Abstract：To explore the suitable sowing dates of winter rye（SecalecerealeL.） in Horqin Sandy Land，the experiment was conducted using the variety‘Bai BK- ⋅1∘ as the experimental material. From August 1O to October 42 023，sowing was carried out every 7days，with a total of 9 sowing dates，to investigate the effcts of sowing dates on the green-up rate and production performance of winter rye. The results showed that with the delay of sowing dates，allindicators first increased and then decreased.When sown on September 14 and September 21，the green-up rate of winter rye reached 90% ，with the highest green-up rate of 91. 53% on Septem ber14. The hay yield at maturity reached 20.00t⋅hm-2 when sown on September 14 and September 21. The maximum values of hay yield （20.41t⋅hm-2） ）and plant height （170.11cm ）both appeared under the sowing date of September 14. The crude protein content at each growth stage of winter rye showed the order： jointing stage > heading stage > maturity stage，with the corresponding maximum values at the three growth stages occurring under the sowing dates of September 7，September 14，and September 14，respectively. Under the sowing date of September 14，the contents of neutral detergent fiber and acid detergent fiber at the jointing， heading，and maturity stages were the lowest. Considering the forage yield and quality of winter rye comprehensively，the suitable sowing period in Horqin Sandy Land is from September 14 to September 21.

Key Words：Sowing date;Horqin Sandy Land; Winter rye;Regreening rate;Production performance

黑麦（SecalecerealeL.）为禾本科黑麦属一年或越年生常见草本作物，原产于地中海沿岸等地，后被传入欧洲及世界各地，具有抗旱、抗旱、抗瘠薄能力等能力[1]。（剩余13401字）