Search | Engineering

订阅投稿

首页工程期刊工程焦点工程成就工程前沿关于我们 English

资源类型

期刊论文 9

年份

2023 1

2022 1

2020 1

2018 2

2017 1

2016 1

2013 1

2012 1

展开︾

关键词

棉花 2

作物病害 1

发展趋势 1

变量控制技术 1

处方图 1

建议 1

机载成像 1

棉花根腐病 1

现代化 1

现状 1

生产 1

高分辨率卫星成像 1

展开︾

检索范围：

排序：展示方式：

Endosulfan residues and farmers’ replacement behaviors of endosulfan in the north-west inland cotton

《环境科学与工程前沿（英文）》 2023年第18卷第4期 doi: 10.1007/s11783-024-1803-8

摘要：

● The situation of endosulfan residues in cotton fields were assessed.

关键词： Cotton fields Endosulfan residues Farmers KAP survey Replacement behaviours

HTML PDF 收藏

INDIAN PERSPECTIVE: SUSTAINABILITY OF BT COTTON IS A MATTER OF CONCERN NOW!

《农业科学与工程前沿（英文）》 2022年第9卷第1期页码 146-149 doi: 10.15302/J-FASE-2021415

HTML PDF 收藏

我国棉花生产现状与发展趋势

喻树迅

《中国工程科学》 2013年第15卷第4期页码 9-13

摘要：

棉花是我国的重要经济作物，棉花产业的健康稳定发展意义重大，本文简要介绍了“十一五”期间我国棉花科研在基础研究、转基因抗虫棉、现代分子育种体系、品种高效应用保障技术等方面所取得的主要成就，阐述了我国棉花产业面临的总量不足、黄萎病危害和新成灾害虫加重等重大问题，并提出应推进盐碱旱地植棉，扩大粮棉复种指数，加大棉花分子设计育种技术的应用，大力推进棉花全程机械化进程，深入开展“千斤棉”高产创建，大幅度提高单产水平，实现快乐植棉，从而提高我国棉花科技的自主创新能力和棉业国际竞争力。

关键词：棉花生产现状发展趋势

HTML PDF 收藏

Effects of cotton straw amendment on soil fertility and microbial communities

Wuren HUANG, Zhihui BAI, Daniel HOEFEL, Qing HU, Xin LV, Guoqiang ZHUANG, Shengjun XU, Hongyan QI, Hongxun ZHANG

《环境科学与工程前沿（英文）》 2012年第6卷第3期页码 336-349 doi: 10.1007/s11783-011-0337-z

摘要： Maintaining soil fertility, while controlling pollution from excessive chemical fertilizer application is important for keeping soil productivity of sustainable agriculture. Variety of straws have been used and proven to be good soil amendments for increasing soil organic matter (OM) and a range of additional soil nutrients. However, little is known about the utilization of cotton straw for soil amendment. To better understand the mechanism behind cotton straw soil amendments, investigations were performed upon cucumber seedlings, where changes to soil nutrients and microbial communities were investigated. The results revealed that the cotton straw application promoted the cucumber seedling growth by significantly increasing the soil OM, available nitrogen, available phosphorus, and available potassium. The concentration of cotton straw was positively correlated to both the number of the culturable microorganisms and also the total microbial biomass within soil. Furthermore, assessment of cotton straw application using Biolog metabolic profiling and phospholipid fatty acid analysis revealed that such application increased the microbial community metabolic activity, and markedly changed the structure of microbial community. 16S rRNA gene clone library construction and phylogenetic analysis of soil bacteria revealed - Proteobacteria sequences dominated the cotton straw amendment soil, comprising 27.8% of the total number of analyzed sequences, while they were less represented in control soil (13.4%). On the contrary, the Sphingobacteria (7.8%) and Verrucomicrobia (2.4%) in the cotton straw amendment soil decreased after application when compared to the control soil 15.2% and 15.2%.

关键词： cotton straw soil amendments microbial diversity Biolog phospholipid fatty acid 16S rRNA gene clone library

HTML PDF 收藏

Effect of UAV prewetting application during the flowering period of cotton on pesticide droplet deposition

Weixiang YAO, Xianju WANG, Yubin LAN, Ji JIN

《农业科学与工程前沿（英文）》 2018年第5卷第4期页码 455-461 doi: 10.15302/J-FASE-2018232

摘要：

Prewetting process can reduce the contact angle between the droplet and the leaf blade, so that the droplet can more easily wet and spread, thereby increasing the quantity of deposition. To improve the effectiveness of pesticides on cotton leaves, prewetting by single-rotor electric unmanned aerial vehicles (UAV) was studied, focusing on the effects of pesticide deposition on cotton leaves during the flowering period. Cotton leaves in 0°–30°, 30°–60°, 60°–90° leaf blade angle ranges (angle between the leaf blade and the horizontal plane) were examined. In the first experiment, four different prewetting volumes (0, 1.6, 3.2 and 4.8 L) were sprayed by a single-rotor electric UAV on four cotton plots (plots A to D) each with an area of 120 m , and then each area was sprayed with a 0.8% (w/v) ponceau 2R solution by another single-rotor electric UAV. The results revealed that with no prewetting, droplet deposition quantity decreased with increasing leaf blade inclination. After prewetting, the mean droplet deposition quantity on plots B, C and D increased by 39.8%, 9.7% and 24.9%, respectively. The prewetting rate of 1.6 L per 120 m had the most significant effect on improving the deposition of droplets. It was also found that the mean droplet deposition quantity in each leaf blade angle range increased after prewetting. For the leaf blade angle range 60° to 90°, this increase was the most pronounced, with 0.043, 0.062, 0.057 and 0.048 L·cm in plots A–D, respectively. Also, droplet deposition uniformity in the leaf blade angle range 60°–90° was better after prewetting. These results should provide a valuable reference for future research and practice to improve the effectiveness of pesticides applied to cotton by aerial applications.

关键词： aerial spray cotton deposition flowering period leaf angle prewetting UAV

HTML PDF 收藏

Extracts from cotton over the whole growing season induce

Ming LANG, Rui YU, Yongqing MA, Wei ZHANG, Christopher S. P. McErlean

《农业科学与工程前沿（英文）》 2017年第4卷第2期页码 228-236 doi: 10.15302/J-FASE-2017150

摘要： Five cotton cultivars and their parents were tested for induction of germination of Wallr. (sunflower broomrape) seeds in pot and field experiments. Germination rates induced by cotton root extracts were the highest followed by stem extracts then leaf extracts. Cotton seedlings at the six-leaf stage induced higher germination than seedling at the two- and four-leaf stage, in all five cotton cultivars and their parents. In the field, the highest concentration of cotton root extracts gave the highest germination rate of , and the lowest concentration of cotton root extracts gave the lowest germination rate. Methanol extracts of cotton rhizosphere soil gave the highest germination of . In general, the root, stem and leaf extracts were more active at the six-leaf stage than other seedling stages. In conclusion, extracts of cotton rhizosphere soil and tissues have high activity in the seedling stage. Extracts of cotton across the whole growing season were able to induce germination but displayed significant cultivar interactions.

关键词： agricultural systems cotton crop ecology crop rotation systems weed management

HTML PDF 收藏

棉花生产规模化、机械化、信息化、智能化和社会服务化发展战略研究

喻树迅,张雷,冯文娟

《中国工程科学》 2016年第18卷第1期页码 137-148 doi: 10.15302/J-SSCAE-2016.01.016

摘要：

棉花生产规模化、机械化、信息化、智能化和社会服务化发展是解决棉花生产过程中劳动力短缺、降低棉花生产成本、实现棉花产业现代化、巩固棉花产业优势地位的必然选择。为此，本文介绍了我国植棉的基本情况、棉花生产规模化、机械化、信息化、智能化和社会服务化的发展现状及制约因素，最后为加快实现快乐植棉提出了对策建议。

关键词：棉花现代化建议

HTML PDF 收藏

a novel K+ transporter gene in cotton

Yiru WANG, Juan XU, Mingcai ZHANG, Xiaoli TIAN, Zhaohu LI

《农业科学与工程前沿（英文）》 2018年第5卷第2期页码 226-235 doi: 10.15302/J-FASE-2017170

摘要： Potassium is an essential nutrient for plant growth and productivity of crops. K transporters are important for K uptake and transport in plants. However, information on the function of K transporters and K channels in cotton is limited. The KT/KUP/HAK protein family is essential for a variety of physiological processes in plants, including nutrient acquisition and regulation of development. This study, identified a K transporter gene, expressed in the roots of cotton ( ) cv. Liaomian17. The deduced transcript of is highly homologous to Cluster II of KUP/HAK/KT K transporters and is predicted to contain 11 transmembrane domains. has been localized to the plasma membrane, and its transcripts were detected in roots, stems, leaves and shoot apices of cotton seedlings. Consistently, b-glucuronidase (GUS) expression driven by the GhKT2 promoter could be detected in roots, mesophyll cells, and leaf veins in transgenic . In addition, the expression of was induced by low K stress in cotton roots and ::GUS-transgenic seedlings. The -overexpression lines plants were larger and showed greater K accumulation than the wild type (WT) regardless of K concentration supplied. The net K influx rate, measured by the noninvasive micro-test technique, in root meristem zone of -transgenic lines was significantly greater than that of WT. Taken together, this evidence indicates that GhKT2 may participate in K acquisition from low or high external K , as well as K transport and distribution in plants.

关键词： cotton GhKT2 potassium transporter uptake

HTML PDF 收藏

遥感和精准农业技术在作物病害检测与管理中的应用实例 Review

杨成海

《工程（英文）》 2020年第6卷第5期页码 528-532 doi: 10.1016/j.eng.2019.10.015

摘要：

长期以来，遥感技术一直被应用于作物病害的检测和地图绘制工作。在作物生长季节获得的机载和卫星图像不仅可以用于某些病害的早期发现和季节内管理，还可用于未来季节中复发性病害的管控。尽管传统的地毯式杀虫剂施用更适于对付能够迅速在田间传播的病害，然而，在作物病害稳定的情况下，精准农业中的变量控制技术（VRT）亦可以有针对性地对受感染地区的作物有效施用杀菌剂。本文简述了已用于作物病害检测和管理的遥感技术和精准农业技术。具体来说，本文详细阐明了利用机载技术、卫星图像和VRT在棉田中检测棉花根腐病（一种破坏性的土壤传播性真菌病）和绘制分布地图的原理，介绍了从图像中提取处方图以施用定点杀菌剂并有效控制作物病害的方法。本文介绍的案例和方法力图为研究人员、推广人员、种植者、作物顾问、农场设备和化学品经销商提供有关遥感检测和有效管理某些作物病害的实用指南。

关键词：作物病害机载成像高分辨率卫星成像棉花根腐病处方图变量控制技术