共查询到20条相似文献,搜索用时 328 毫秒
1.
正安阳滑县素有"豫北粮仓"之称,全县小麦种植面积170多万亩。自2013年农民专业合作社成立以来,该地区农作物种植在机械化作业、生产资料供应、施肥、灌溉、病虫害防治、销售方面实现了"六统一",设备机械方面的服务也更加专业。本文主要分析小麦种植及病虫害防治现状,具体论述小麦种植管理和病虫害防治技术要点。1小麦种植及病虫害防治现状以往小麦种植模式比较落后,因未采取有效的病虫害防治措施,导致小麦幼苗常出现根部腐烂的情况。加之,夏季天 相似文献
2.
3.
4.
5.
本文作者从鲁中地区小麦病虫害主要种类及其发生规律、绿色防控措施、注意事项等4个方面阐述了小麦病虫害绿色防控技术,以期对山东省及其周边地区的小麦病虫害绿色防控提供帮助。 相似文献
6.
7.
8.
9.
10.
小麦病虫害是无公害生产的主要障碍之一.在郑州地区可造成小麦大幅减产的病虫害主要有小麦白粉病、全蚀病、黑穗病、锈病、矮丛病、麦蚜、麦蜘蛛等.根据近年来试验和示范研究结果,提出了小麦各个生育期的病虫害综合防治措施. 相似文献
11.
山西省煤矿区土地退化成因分析及生态恢复对策 总被引:3,自引:0,他引:3
通过对全国产煤最多的山西省各类煤矿土地退化的现状和类型进行全面调查,认为不同作业方式是影响土地退化的主要原因。在研究煤矿区土地退化的成因、程度、范围及其影响的基础上,针对煤矿区特殊的地理位置和行政管理方式,从政策和技术等层面上提出了矿区生态恢复的策略和具体技术措施。 相似文献
12.
13.
14.
15.
根据陕西关中地区的道路、地块条件及吨粮田小麦收获农业技术要求,通过对各种联合收割机特点及作业性能的对比分析,选择新疆-2型和桂林-3号联合收割机为吨粮田小麦收获配套机械,并从技术和经济两方面进行了可行性分析,结果表明,选型机械均能适应吨粮田小麦收获并满足农艺要求,社会效益和经济效益显著。 相似文献
16.
17.
Kishk Abdelmageed Xu-hong CHANG De-mei WANG Yan-jie WANG Yu-shuang YANG Guang-cai ZHAO Zhi-qiang TAO 《农业科学学报》2019,18(3):483-495
Wheat was the first crop grown in Egypt, and it remains highly important. Egypt is the largest wheat importer in the world and consumes an extensive amount of bread. It is imperative for wheat scientists to decrease the large gap between production and consumption. Wheat yields in Egypt increased 5.8-fold(6.7 billion kg) between 1961 and 2017 due to variety improvement and the use of better planting methods such as the raised bed method, ideal sowing date, surge flow irrigation and farm irrigation systems, laser levelling, fertilizers, and intercropping with raised beds. In this paper, the development of wheat production techniques and variety evolution over more than five decades in Egypt have been analyzed. In particular, we have focused on the technologies, cultural practices and causes for per unit area yield increase. The main purpose was to study the issues that have arisen during wheat production and to make recommendations for smart agricultural practices. In 1981, the yield was 3 300 kg ha–1 and through the improvement of varieties, expansion of agricultural land and the adoption of modern agricultural techniques yield reached 6 500 kg ha–1 by 2017. The production growth rate was 4.1% annually, and the total grain yield increased 4.3-fold, from 1.9 billion kg in 1981 to about 8.1 billion kg in 2017. The use of new improved varieties, new cultivation techniques, and modern irrigation techniques contributed to 97.0% of the increase in yield per unit area and 1.5% of the increase in yield was due to planting area expansion. Therefore, the increase in total yield mainly depended on the increase in yield per unit area. Wheat production in Egypt has been improved through the development of breeding and cultivation techniques. The use of these new techniques, the popularization of new high-quality seed varieties, and the use of the raised bed method instead of the old method of planting in basins have made the largest contributions to increased yield. In the future, wheat yield could be further increased by using the tridimensional uniform sowing mode and the development of wheat varieties that are resistant to rusts, deficit irrigation, and abiotic stress, that are highly adaptable to mechanized operation and have high yields. Based on our analysis, we propose the main technical requirements and measures to increase wheat yield in Egypt in the near future. 相似文献
18.
19.
中国小麦条锈病综合治理理论与实践 总被引:20,自引:2,他引:20
小麦条锈病是影响小麦安全生产的重要生物灾害。文中介绍了全国小麦锈病工作者通过60多年通力协作,对小麦条锈病综合治理理论和技术研究取得的显著成绩,系统揭示了中国小麦条锈病的越冬、越夏规律、菌源传播规律、病菌致病性变异途径以及品种抗病性“丧失”的规律与原因,发现中国小麦条锈病存在秋季菌源和春季菌源2大菌源基地。提出了“综合治理越夏异变区、持续控制冬季繁殖区和全面预防春季流行区”的病害源头治理策略,研发出小麦条锈病分子诊断、异地测报以及抗锈良种、药剂拌种、退麦改种、适期晚种和带药侦查、打点保面等一系列病害监测预警和关键防治技术,构建了以生物多样性利用为核心的中国小麦条锈病菌源基地综合治理技术体系,在生产上大规模推广应用,防病保产效果极其显著。文中并对病菌致病性变异机制、早期预警和越夏易变区生态治理等问题进行了讨论。 相似文献