Association of host plant growth and weed occurrence with armyworm(Mythimna separata) damage in corn fields

To clarify association between armyworm（Mythimna separata） damage level and the corn growth and weed occurrence, we investigated corn plant height, stem diameter and vigor as well as weed coverage and biomass. The investigations were conducted at three locations of Shaanxi Province, China which were suffered seriously from armyworm. Significant correlations were found between the parameters analyzed. At stunted corn growth and presence of plenty of weeds, the armyworm damage tended to be heavy; oppositely, when corn grew well and weed density were low, armyworm harm was the minimal. Therefore, corn growing status and weed density can significantly affect armyworm damage level. Our results imply that promoting corn growth and timely removal of weeds are conducive to reducing armyworm occurrence.

Control Effects of 3 Kinds of Herbicides against Weeds in Dogbane (Apocynum venetum) Field

[ Objective] The paper was to explore the control effects of 3 kinds of herbicides against weeds in dogbane （Apocynum venetum） field. [ Method ] Using haloxyfop-R-mithyl and quizalofop-ethyl EC specifically killing monagenns gramineous weeds and chipton specifically killing dicotyledonous broad-leaf weeds, the control test against weeds in 2-year-old dogbane field was carried out. [ Result ] Haloxyfop-R-mithyl had good control effect against gramincous weeds, and its control effect against both barnyard weed （ Echinochloa crusgalli） and green bristleweed （ Setaria viridis ） was greater than 35.0% ; the control effects of quizalofop- ethyl EC against barnyard weed and green bristleweed were 14.8% and 28.6%, respectively; chipt0n had good control effect against Chenopodium album, and the control effect reached 30.8%. Moreover, 3 herbicides did not cause damage to dogbane. [ Conclusion] The study provide theoretical basis for completing cultivation technique of dogbane.

Study on Analysis Model of Millet Yield Loss Caused by Weeds in Summer Season Millet Field

Weed management in summer season foxtall millet field was studied by evaluating weed damage and exploring competition between weeds and foxtail millet, and a few fitting models were simulated and compared by employing field plot experiment and nonlinear regression analysis. The results showed that the millet yield losses and weed density were extremely significantly correlated. Among the tested models, the determination coefficient （ R2 ） of hyperbolic model was 0.997 12, and minimum residual sum of squares was 16.174, which was considered the optimal model to simulate the competition relation between weeds and millet. The predicted equation was Y = d/（ 1. 733 ＋ 0. 018d） ; the interspecific competitiveness of weeds was 0. 577 0 and the intraspecific competitiveness was 0.010 3 ; the maximum loss rate of millet yield was 55.56%. This study had established an analysis model with high gcodness-of-fit and practical prediction which could help weed management in summer season millet field.

Effects of Paddy Field Rotation on Diseases,Pests and Weeds of Rice

[ Objective] The paper was to explore ecological effect of paddy field rotation on reducing disease, pests and weeds of rice. [ Method] With long-term continuous cropping rice as control, according to field location experiments for consecutive 14 years, the effects of paddy field rotation on diseases, pests and weeds of rice were studied in details. [ Result] Paddy field rotation in some extent could reduce diseases, pests and weeds of rice. The diseased plant rate and disease in- dex of rice sheath blight in early rice under paddy field rotation treatment were averagely 10% and 0.4% lower than those in continuous cropping treatment, respec- tively. The diseased plant rate and disease index of rice sheath blight in late rice were 17.7% and 13.3% lower than those in treatments with continuous cropping mode, respectively. The diseased plant rate and disease index of rice false smut in both early rice and late rice under rotation treatments were lower than those in treatments with continuous cropping mode. White leaf rate caused by rice leaf roller and dry heart rate caused by striped rice borer under rotation treatments were significantly lower than those under continuous cropping treatment. The growth status of weeds under rotation treatments was weaker than that under continuous cropping treatment. [ Conclusion] The paper has important significance on alleviating diseases, pests and weeds of rice and improvement of ecological environment of farmland, and provides theoretical basis for sustainable development of agriculture.

Chemical Weeding in Dry Direct Seeding Fields of Single Cropping Middlelate Rice

Chemical weeding in dry direct seeding fields of single cropping middle-late rice was studied in Huida vegetable farm of Huizhou City in 2012. The main treatment was herbicide（ pretilachlor ＋ bensulfuron-methyl,Yangguo and butachlor）,and the sub-treatment was application method（ soil treatments,seedling treatment and integrated treatment）. The results showed that 80 g pretilachlor ＋ bensulfuron-methyl（ 36% pretilachlor ＋ 4% bensulfuron-methyl） diluted with 50 kg water could be sprayed or 200 g Yangguo（ 23. 9% butachlor ＋ 1. 1% bensulfuron-methyl） mixed with 15 kg sandy soil could be broadcasted per 667 m2 on the sowing day or the second day under moist condition of soil,which could effectively control weeds in dry direct seeding fields of single cropping middle-late rice.

河南省冬小麦田杂草群落分布现状及其变化原因分析

【目的】过去10年,河南省6个冬小麦种植区杂草群落结构发生了明显变化,明确河南省6大冬小麦种植区域杂草群落演替规律,并分析其演替原因,为制定冬小麦田杂草精准防控策略提供理论依据。【方法】于2023年11—12月,采用倒“W”型九点取样法,调查河南省17市共计378个地块的冬小麦田杂草种类和株数,明确河南省6大冬小麦种植区杂草群落现状,并与2013年调查结果比较,分析10年来的杂草群落变化规律。【结果】河南省冬小麦田杂草群落现状及变化有以下特点:(1)禾本科杂草发展迅速,节节麦(Aegilops tauschii)、多花黑麦草(Lolium multiflorum)、雀麦(Bromus japonicus)和大穗看麦娘(Alopecurus myosuroides)从局部区域逐步向全省扩散蔓延,目前几乎覆盖全省的各大种植区域,其中节节麦和雀麦主要发生在旱茬麦田。2013年这4种杂草的相对优势度排序分别是第14、15、27和35位,2023年相对优势度分别位居第2、5、8和15位。(2)猪殃殃(Galium aparine)和波斯婆婆纳(Veronica persica)是河南省冬小麦田主要的阔叶杂草,2023年相对优势度分别高达26.89%和10.68%。其中猪殃殃相对优势度10年来均居于第1位,且在旱茬麦田和稻茬麦田均能造成巨大危害,波斯婆婆纳从第6位上升为第3位。(3)猪殃殃、节节麦、波斯婆婆纳和播娘蒿(Descurainia sophia)目前成为河南省冬小麦田的绝对优势杂草。2013年相对优势度超过10%的只有猪殃殃和荠菜(Capsella bursa-pastoris),分别为17.38%和10.92%;2023年相对优势度超过10%的有猪殃殃、节节麦、波斯婆婆纳和播娘蒿,分别为26.89%、13.45%、10.68%和10.65%。(4)宝盖草(Lamium amplexicaule)、野芥菜(Raphanus raphanistrum)、牛繁缕(Malachium aquaticum)、泽漆(Euphorbia helioscopia)、麦家公(Lithospermum arvense)、野老鹳草(Geranium carolinianum)等杂草在局部区域危害大,此外稻槎菜(Lapsana apogonoides)、通泉草(Mazus japonicus)、看麦娘(Alopecurus aequalis)等区域性危害杂草主要分布于稻茬麦田。【结论】耕作制度变化、恶性杂草传播入侵和杂草抗药性发展是造成河南省冬小麦田杂草群落变化的主要因素,联合收割机跨区作业和人类无意识携带传播也是推动杂草群落变化的重要因素。在河南省冬小麦田杂草防控中,应推广土壤封闭处理除草剂和苗后茎叶处理除草剂与农艺措施相结合、根据不同种植区域田间草相精准选择除草剂以及不同机理除草剂轮换使用等区域杂草综合防控策略。

Enhanced Species Diversity Unlocked by Habitat Conservation in Agricultural Landscapes: New Perspectives on Ecological Weed Management and Sustainable Intensification—Species Diversity and Habitat Conservation

The impulse to remain profitable by increasing agricultural production levels in view of the greater demand for food, provided impetus to production intensification. The aim of this review is to summarise current literature, reporting specifically on the impact of production intensification on habitats and yield constraints caused by weeds. Secondly, in alleviating these effects over the short term, ecological measures that enhance species diversity in conserved habitats and promote semi-natural habitats in the agricultural landscape, are discussed. In large-scale intensive agriculture, weed control is predominantly rooted in agrochemical applications in the form of herbicides. Long lasting intensive agricultural practices show discord both with the promotion of the biodiversity of microbes belowground and aboveground and with organisms involved in the breaking down of plant material. The presence of native species in the surroundings, in combination with hedgerows and field margins, with a comparatively intricate and balanced variety of plants in a sheltered environment, are essential for settlement of benign insects, particularly in the face of intensive agricultural production. The promising tactic of advantageous seed predators enables decreased herbicide applications. Crop mosaics arranged to advance compatibility at the landscape scale are important to bolster pollination services and insect management, while ecological variety in the surroundings acts as a safety net for habitat diversity. Weed control in combination with different tactics of vegetation use, comprising cover cropping, hedgerows and field margins, sets up safe havens in the landscape, and improves the diffusion of complementary life forms. Field margins perform a meaningful natural function as point of provision for forage, safe havens and distribution passageways for pollinators and insect predators. Production practices that promote more heterogeneity and combine high density semi-natural safe havens and habitat conservation in agro ecosystems are beneficial to species diversity across trophic levels and contribute to agricultural production stability and food safety.

麦田杂草发生及其对小麦生产的影响

为探明江苏常州地区麦田杂草发生及其对小麦生产的影响,本研究组织开展了大面积麦田杂草发生和不同耕作方式(深耕、浅旋)下的麦田杂草发生调查,并设置不同药剂处理(处理A,33%氟噻草胺·呋草酮·吡氟酰草胺;处理B,35%氟噻草胺·吡氟酰草胺;处理C,41%氟噻草胺;处理D,60%丙草·异丙隆;处理E,20%氟吡酰草胺;以清水为对照),探究各处理对杂草发生、产量等小麦生产的影响。结果表明,研究区麦田杂草发生呈逐渐加重趋势,其中单子叶杂草变化较明显,主要优势种为禾本科杂草日本看麦娘、看麦娘和菵草等。深耕较浅旋有加重杂草发生的趋势。各处理对小麦生长安全,其中,以处理A的田间杂草较少,小麦产量最高;杂草对产量的影响方面,其主要影响小麦单位面积穗数,进而影响产量,以药后50d单子叶杂草数对穗数的影响最大。研究结果为麦田杂草高效防除提供参考。

江淮旱直播稻田杂草发生调查及土壤处理剂对马唐的活性评价

为明确江淮地区旱直播稻田杂草发生情况及马唐的防控技术,本文于2023—2024年采用倒置“W”九点取样法对江淮部分地区6个市32个乡镇共320块稻田进行杂草调查,同时采用整株生物测定法测定8种土壤处理除草剂对抗性(抗噁唑酰草胺)和敏感马唐种群的活性。江淮地区旱直播稻田共调查到杂草57种,隶属于25科,其中禾本科和菊科杂草居多,分别占15.79%、12.28%;调查地区以马唐、稗为主构成的杂草群落,优势杂草有马唐、稗、鳢肠和铁苋菜;淮安市、滁州市和南通市旱直播稻田杂草群落的多样性与复杂性居高;扬州市与泰州市、盐城市与滁州市的杂草群落相似;8种土壤处理除草剂对抗性和敏感马唐种群均具有较好的除草活性,其中仲丁灵、二甲戊灵对马唐的防除效果最佳,对抗性和敏感马唐种群的GR 90值分别为200.61、190.35、98.96、91.31 g(a.i.)/hm^(2)。马唐、稗、鳢肠、铁苋菜是江淮旱直播稻田的优势杂草;旱直播稻田主要以马唐、稗为主构成的杂草群落;扬州市与泰州市、盐城市与滁州市旱直播稻田杂草群落相似;8种除草剂对抗性和敏感马唐种群均具有较好的除草活性。

5种除草剂对冬小麦田禾本科杂草的防效比较

为筛选防除冬小麦田禾本科杂草的安全、高效药剂,选用3%甲基二磺隆SC等5种常用药剂进行防效对比试验,分析药剂对小麦安全性、杂草防除效果(株防效和鲜重防效、药剂速效性和持效性、控制杂草类型)和挽回损失率的影响。结果表明,5种参试药剂的使用剂量对处于4~5叶越冬期的小麦生长安全。以3%甲基二磺隆SC、5%唑啉草酯EC和75%氟唑磺隆WG的除草控害效果最好,药后110 d的株防效依次为94.01%、83.03%和74.65%,鲜重防效依次为94.97%、88.56%和82.97%。其中5%唑啉草酯EC、7.5%啶磺草胺WG的防除速效性较好,而3%甲基二磺隆SC和5%唑啉草酯EC的持效性较长。5%唑啉草酯EC防除看麦娘、日本看麦娘的效果最好,3%甲基二磺隆SC防除菵草的效果最好。各处理小区测产结果表明,3%甲基二磺隆SC、5%唑啉草酯EC和75%氟唑磺隆WG处理较对照区挽回小麦损失率依次为29.28%、25.18%和22.40%。实际生产中,防除小麦田禾本科杂草应合理交替使用不同作用机理的除草剂。

Evaluation of soil flame disinfestation(SFD) for controlling weeds,nematodes and fungi

Soil flame disinfestation(SFD) is a form of physical disinfestation that can be used both in greenhouses and on field crops. Its use for soil disinfestation in different crop growing conditions makes it increasingly attractive for controlling soilborne pathogens and weeds. But little is known about the effect on weeds and soilbrone diseases. This study reports on greenhouses and field crops in China that determined the efficacy of SFD to control weeds, nematodes and fungi. It also determined the impact of SFD on the soil physical and chemical properties(water content, bulk density, NO3^–-N content, NH4^+-N content, conductivity and organic matter) in three field trials. A second generation SFD machine was used in these trials. SFD treatment significantly reduced weeds(>87.8%) and root-knot nematodes(Meloidogyne incognita)(>98.1%). Plant height and crop yield was significantly increased with SFD treatment. NO3^–-N and NH4^+-N increased after the SFD treatment, and there was also an increase in soil conductivity. Water content, bulk density and organic matter decreased significantly in the soil after the SFD treatment compared to the control. Soil flame disinfestation is a potential technique for controlling weeds and diseases in greenhouses or in fields. SFD is a non-chemical, safe, environmentally-friendly soil disinfection method.

Preparation of 55% MCPA-isooctyl and Ametryn EC and Its Field Efficacy

[ Objective] The purpose was to supply experimental base for preparing new types of high efficient and safe mixture herbicide for sugarcane field. [ Method ] The associated function of MCPA-isooctyl and ametryn on Digitaria sanguinalis and Celosia argentea was evaluated by co-tox. icity coefficient method by potting experiment. [ Result] When active ingredient of MCPA-isooctyl and ametryn was mixed in the proportion of 9： 5, there was obvious synergistic effect on D. sanguinalis and C. argentea, while the co-toxicity coefficients reached 156.24 and 140.40. Proportion method and bisection method were used to confirm the optimum proportion of various ingredients in mixture of MCPA-isooctyl and ametryn, and the optimum proportion was as follows： 35.4% MCPA-isooctyl, 19.6% ametryn, 10.0% emulsifier and the rest were solvents. The stability test indicated that each index of this EC was consistent with standard for pesticide EC. Field efficacy test of 55% MCPA-isooctyl and ametryn EC showed that most weeds in sugarcane field could be effectively controlled with the dose range of 1 073 -2 310 g （a. i. ）/hm^2. [ Conclusion ] Mixture product of ametryn and MCPA-isooctyl with high content was successfully developed, which had the advantages including high efficiency, broad spectrum, good economy and convenient utilization, etc.

Development and Fabrication of Manually Push-Pull Type Conical Weeder for Bangladesh Condition

In Bangladesh, the use of machinery in agriculture production is fast rising. Researchers are developing technology to replace traditional hand weeding to manage weeds in rice fields. The present study has been taken to increase weeding efficiency and reduce the drudgery in weeding and mulching. A line-to-line distance of 20 cm, the operation is push-pull, and field operating condition at 2 - 4 cm standing water (for softening the field) was the designed hypothesis. The weeder consists of a skid/float, float holder, float adjuster, main body frame, rotor, axel, bush, rotor holder, rotor holder adjuster, handle, handle griper, handle holder, handle height adjuster, nut, bolt, etc. The designed weeder was fabricated using MS sheet, MS pipe, MS flat bar, MS nut-bolt, etc. When the rotors perform back and forth, the weeder’s two conical rotors with six plain blades and six serrated blades work together to uproot and bury the weeds. It also contains a 2 mm thick float assembly with a precise angle of 22 degrees. Weeds are uprooted by the weeder’s blades and buried in the muddy soil. It causes topsoil disturbance and enhances aeration. The weeding efficiency and capacity of the conical weeder were 81.92% and 0.0203 ha/h respectively. With a push-pull operation, the weeder can uproot and bury the weeds in a single row at a time. The pushing force and weight of weeder were 43.42 N and 5.6 kg respectively. Farmers can use this weeder to increase their comfort and reduce the drudgery associated with weeding and mulching in their fields.

Effects of the inhibition of weed communities by winter-flooding

Winter-flooded paddy field is an agricultural method which putting a water among the winter, it is paid attention as an environmental friendly agriculture. Especially, it is said, winter-flooding is control paddy weeds and there is the farming potential that the annual rice yield is high. However, there is no detailed research about the effects of weed communities by winter-flooding, as the purpose of this study, we investigated the effects of the inhibition of weed communities (life cycle, harmful weed) by winter-flooding at a shore of Inba Lake, Chiba Prefecture, Japan, and compared them to paddy weeds in a dry paddy field. Methods examined the plant height (cm) and the cover degree class of all appearance species in each quadrant frame (1 m2). Quadrant in the two type paddies were 10 frames (D1-D10) at the control, and were 10 frames (W1-W10) at the treatment (Figure 1). In a winter-flooded paddy field, species number and plant volume of winter-annual plants decreased in the third winter after winter-flooding, In particular, the plant volume of Alopecurus aequalis, Cardamine flexuosa decreased significantly. We considered that the cause of this decrease was due to the depth of flooding (more than 10 cm). Eleocharis kuroguwai and Echinochloa oryzoides, which are perennial plants, Sagittaria trifolia, which is an annual plant, increased in a winter-flooded paddy field in the third summer after winter-flooding. We considered that these species grew thicker at places where the seeds germinated, and grew easily, because the conservation situation of the seeds fitted well under the winter-flooding conditions. They started to grow immediately after the drainage of water. The period of drainage coincided with increasing light intensity and temperature. In addition, the annual rice yield of the third year after winter-flooding was higher than that of the habitual practice rice field.

毕节山地玉米田间杂草种类及危害程度调查

为明确毕节山地玉米种植区田间杂草的组成以及群落结构特征,采用倒置“W”九点取样法于2023年7月对毕节地区的玉米田杂草发生种类及危害情况进行调查。结果表明,毕节地区玉米田杂草184种,隶属于47科140属,其中双子叶杂草153种,单子叶杂草31种,分别占样方中杂草种类的83.16%和16.84%。优势杂草主要有菊科(共37种,占20.11%)、禾本科(共24种,占13.04%)、蓼科(共16种,占8.70%);通过优势度分析,相对多度最大的是升马唐,为31.49,其次是粗毛牛膝菊和狗尾草,分别为28.43和27.69。发生广泛且危害严重的有粗毛牛膝菊、升马唐、狗尾草、繁缕、鬼针草;其次是腺梗豨莶、细柄野荞麦、阿拉伯婆婆纳、尼泊尔蓼、野艾蒿、酢浆草、铁苋菜、裂苞铁苋菜、藜、打碗花、小蓬草、牛筋草、野草香、反枝苋和续断菊。

几种除草剂对麦田阔叶杂草的防除效果

为明确几种除草剂对小麦田阔叶杂草的防除效果及对小麦的安全性,于返青期采用茎叶喷雾法,选取30%氰草津SC、10%唑嘧磺草胺SC、40%砜吡草唑SC、86%2甲4氯异辛酯EC+480 g/L灭草松AS、16%吡酰草·双氟草SC、5%双氟磺草胺OD、28.8%氯氟吡氧乙酸EC等7种药剂进行大田药效试验,测定其对猪殃殃、播娘蒿、荠菜等杂草的防除效果。结果表明,86%2甲4氯异辛酯EC+480 g/L灭草松AS、16%吡酰草·双氟草SC对总杂草的防效最好,药后45 d鲜重防效分别为93.05%和95.65%。30%氰草津SC、40%砜吡草唑SC对杂草的防除效果较差,药后45 d鲜重防效分别为51.51%、42.58%,但对于以葎草为主的延迟出土类杂草有较好的封闭效果。28.8%氯氟吡氧乙酸EC、86%2甲4氯异辛酯EC+480 g/L灭草松AS处理的小麦有药害产生,可能与施用苯醚甲环唑防治病害有关。其他处理对小麦生长无明显不良影响。可见,这7种除草剂对阔叶杂草防效的差异较大。相比其他单剂,86%2甲4氯异辛酯EC 387.0 g/hm^(2)+480 g/L灭草松AS 720.0 g/hm^(2)、16%吡酰草·双氟草SC 120.0 g/hm^(2)对各种杂草表现出优异的防效,在小麦返青期茎叶喷雾处理防除一年生阔叶杂草有较为良好的应用前景。

直播方式对重庆地区稻田杂草群落组成和生态位的影响

为高效绿色防除重庆地区直播稻田杂草,对淹水直播和湿润直播处理下稻田杂草的群落组成和生态位进行研究。结果表明,淹水直播和湿润直播稻田的杂草群落分别由16种(隶属于9科15属)和18种(隶属于10科17属)杂草组成,水蓼(Polygonum hydropiper)和鬼针草(Bidens pilosa)为湿润直播下特有的杂草。淹水直播和湿润直播的重要杂草群落结构分别为丁香蓼(Ludwigia prostrata)+鸭舌草(Monochoria vaginalis)+稗草(Echinochloa crus-galli)和陌上菜(Lindernia procumbens)+稗草(E.crus-galli)+看麦娘(Alopecurus aequalis)+异型莎草(Cyperus difformis)。除稗草(E.crus-galli)外,两种直播方式下重要杂草的重要值均差异显著(P<0.05)。两种直播方式共有的14种重要或主要杂草中,淹水直播下光头稗(Echinochloa colonum)、稗草、异型莎草、陌上菜、看麦娘、笄石菖(Juncus prismatocarpus)、双穗雀稗(Paspalum distichum)共7种重要或主要杂草的生态位宽度较湿润直播下显著降低,且其种间(除笄石菖与双穗雀稗外)生态位叠加值或显著降低或持平。综上,淹水直播可抑制水蓼和鬼针草的萌发,从而改变稻田重要杂草的群落结构,而且可控制光头稗、稗草、异型莎草、陌上菜、看麦娘、笄石菖、双穗雀稗的数量。

基于药草比控制的中药材田间杂草防除措施初探

杂草是农业生态系统的重要组成部分。中药生态农业倡导中药材仿野生种植和拟境栽培种植模式,种植过程中,保留一定数量的杂草,尤其是野生群落中常见的伴生杂草,最大程度地模拟原生态环境,从而提升中药材产量和品质,提高栽培中药材的经济效益。以中药生态农业关于杂草防控理论为指导思想,探讨了基于药草比控制的中药材栽培田间杂草控制措施;同时以甘草为例,探讨了栽培甘草整个生育期杂草最佳防除频率。结果表明:每隔28 d除一次杂草的甘草品质最佳,经济效益最高。这种杂草防除措施可使甘草与杂草在密度、多样性和盖度方面的配比达到最佳平衡值,这为今后中药材仿野生种植和逆境栽培种植过程中杂草防除拓宽了研究思路。

洁田稻稻田杂草防控及杂草稻种群耐药性研究

为探索咪唑啉酮类除草剂对洁田稻稻田常规杂草和杂草稻的防治效果及不同杂草稻种群对咪唑乙烟酸的耐药性,采用大田试验在不同时期喷施不同浓度的咪唑乙烟酸水剂防治田间不同杂草及室内盆栽试验鉴定杂草稻耐药性。结果表明:咪唑乙烟酸在水稻播后20 d施用,对田间杂草稻具有较好的防效,1 200 mL·hm^(-2)咪唑乙烟酸对田间杂草稻的防效达92.8%。过早施药对杂草稻防效普遍低于90%,过晚施药需加大剂量才能达到较好的防效。咪唑乙烟酸供试中、高浓度对稗草和千金子具有较好的防效,而对多花水苋和丁香蓼等阔叶杂草防效较差。耐药性鉴定结果表明,不同区域的杂草稻种子对咪唑乙烟酸较敏感,未产生明显的耐药性。

不同控草方式对花椒地杂草生长及土壤养分的影响

为明确花椒地不同控草方式对杂草生长的影响,在遵义市红花岗区花椒基地设置4种不同控草措施(处理),即:除草剂(T1)、鼠茅草(T2)、防草布(T3)、秸秆覆盖(T4),以自然生草作为对照(CK),对比分析不同控草方式对花椒地杂草种类、数量、生物量以及土壤肥力的影响,评估不同处理的控草效果。结果表明:花椒地共出现杂草种类26种,归属16个科;4个处理均对花椒地杂草起到了不同程度的抑制效果,其中T3效果最好,仅发现4种杂草,较CK减少10种,且杂草密度和生物量均为最低,株防效和生物量防效均超过了97%;T2次之,株防效和生物量防效在5月超过了60%,在7月超过了80%;T1与T4在后期效果差;4个处理中仅T4对土壤肥力有明显的提升效果,其他处理未产生显著影响。综合来看,防草布覆盖、间种鼠茅草2种控草方式可作为遵义地区花椒地的控草技术进行应用。