论文部分内容阅读
集成创新旱地小麦高产高效栽培、田间管理和科学施肥技术,以期改善和提高旱地小麦土壤水分和养分状况,对旱地小麦可持续生产有重要意义。笔者对已有的“旱地留茬免耕秸秆全程覆盖保护性耕作技术”进行改进,提出了旱地小麦免耕覆盖宽幅播种技术,并在陕西省合阳县应用该技术布置3年田间定位试验。结果表明:较常规模式,免耕覆盖宽幅播种技术能显著提高土壤贮水量和养分含量,小麦亩均增产40~60kg、节约机械耕作成本65元。可见,旱地小麦免耕覆盖宽幅播种技术具有保水防旱、沃土肥田、方法简便等特点,是解决渭北小麦干旱问题的突破性技术措施。
Integrated innovative high-yielding and efficient cultivation of dryland wheat, field management and scientific fertilization technology, with a view to improve and enhance the dry land wheat soil moisture and nutrient status, sustainable development of wheat in dryland is of great significance. The author of the existing “dry stubble tillage straw tillage covered the entire process of conservation tillage ” to improve, put forward the dry land wheat no-tillage sowing broad-seeding technology and application of the technology in Heyang, Shaanxi Province, 3-year field Positioning test. The results showed that: Compared with the conventional model, the no-tillage-covered broad-seeding technology can significantly increase soil water storage and nutrient content, wheat yield increased by 40 ~ 60kg per mu, saving 65 yuan of mechanical farming costs. It can be seen that the no-tillage technology of dry land covering broad-spectrum sowing technology has the characteristics of water and drought control, fertile land and fertile soil, and is simple and convenient in technology. It is a breakthrough technical measure to solve the drought of Weibei wheat.