摘要
It is common in South China that rice (Oryza sativa L.) fields are seeded with a cover crop following autumn harvest. The objective was to compare the effects of different no-tillage methods on cover crop yield, nutritive composition, and silage fermentation quality of forage wheat (Triticum aestivum L. cv. Shimai-1) and Italian ryegrass (Lolium multiflorum L.). Cover crops were planted in winter fallow paddy fields 9 (NT9) and 5 (NT5) d prior to rice harvest and 1 d after rice harvest. Cover crops seeded prior to harvest were no-tillage planted and cover crops seeded after rice harvest were either no-tillage (NT1) or seeded using conventional techniques (CT1; plow followed by seeding). The cover crop biomass was determined before rice sowing in spring. Compared to NT9 and NT5, the dry matter (DM) and crude protein (CP) yields of NT1 and CT1 were slightly higher. Compared to Italian ryegrass, forage wheat had high relative feed value and DM yield. The neutral detergent fiber concentration of NT9 and NT5 was higher than NT1 and CT1 (P P P P < .05). The best sowing method for forage wheat and Italian ryegrass on winter fallow paddy fields was no-tillage sowing after rice harvest, based upon the present study.
摘要译文
它在南中国是常见的，米（Oryza sativa L.）田野播种秋季收获后的封面作物。目的是比较不同无耕作方法对饲养作物产量，营养成分和饲料小麦的青贮发酵质量的影响（Triticum aestivum L.CV。 Shimai-1）和意大利Ryegrass（Lolium Multiflorum L.）。在米收获之前，在冬季休耕稻田9（NT9）和5（NT5）D之前种植覆盖作物和5（NT5）D和米饭收获后的1 D.在收获之前割草的覆盖作物是在水稻收获后种植的植物植物，覆盖作物是无耕作（NT1）或使用常规技术接种（CT1;耕种后接着）。在春天播种之前确定覆盖作物生物质。与NT9和NT5相比，NT1和CT1的干物质（DM）和粗蛋白（CP）产率略高。与意大利黑麦草相比，饲料小麦的相对进料值和DM产量。 NT9和NT5的中性洗涤剂纤维浓度高于NT1和CT1（P P P P <.05）。基于本研究，在冬季休耕稻田中饲养小麦和意大利黑麦草的最佳播种方法是脱耕播种。
Liuxing Xu[1];Guojian Tang[1];Jiaxing Liu[1];Jing Tian[1];Xiaoya Wang[1];Jianguo Zhang[1]. Cover crops can produce livestock forage in Chinese subtropical regions[J]. AGRONOMY JOURNAL, 2021,113(2): 1535-1547