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Effect of Planting Methods and Nitrogen Sources on Yield, Yield Components and N-Uptake of Spring Maize 种植方式和氮源对春玉米产量、产量构成及氮素吸收的影响
Pub Date : 2018-01-01 DOI: 10.4172/2329-8863.1000373
M. Kashif, M. Javed, Shafiullah, Arshad Ali, G. R. Khan, A. Rahman, J. Alam, S. Siraj
A field experiment was conducted to evaluate effect of different planting methods and nitrogen sources on yield and yield components of spring maize at Agronomy Research Farm, The University of Agriculture, Peshawar during spring 2016 and 2017. Research work was carried out in randomized complete block design having total number of four replication. Different planting methods (ridge, raised bed and flat) were assigned to main plot while different nitrogen sources (poultry manure, FYM, urea and press-mud) were allotted to sub plots. Organic manures were applied manually into soil one week before maize sowing. Analysis of data showed that all parameters of spring maize were significantly affected by different planting methods except N-uptake. Maximum grain yield (3695 kg ha-1), biological yield (9485 kg ha-1) and grains ear-1 (393) were recorded in ridge planting method. Similarly, all yield parameters were also significantly affected by different nitrogen sources. Maximum grain yield (4350 kg ha-1), biological yield (10103 kg ha-1), grains ear-1 (449) and total N-uptake were recorded in poultry manure applied plots. Thus, it is concluded that ridge planting method and poultry manure resulted maximum grain yield and biological yield of spring maize as compared to other treatments.
2016年和2017年春季,在白沙瓦农业大学农学研究农场进行了不同种植方式和氮源对春玉米产量和产量组成的影响。研究工作采用随机完全区组设计,共4个重复。主地块采用垄作、垄作、平作三种不同的种植方式,次地块采用不同的氮源(禽粪、FYM、尿素和压泥)。在玉米播种前一周,人工向土壤中施用有机肥料。数据分析表明,不同种植方式对春玉米除氮素吸收量外的其他参数均有显著影响。垄作法籽粒产量最高(3695 kg ha-1),生物产量最高(9485 kg ha-1),籽粒穗数最高(393粒)。同样,不同氮源对所有产量参数也有显著影响。施用家禽肥的地块记录了最高粮食产量(4350 kg ha-1)、生物产量(10103 kg ha-1)、籽粒穗数(449)和总氮吸收量。综上所述,与其他处理相比,垄作和禽肥处理的春玉米籽粒产量和生物产量最高。
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引用次数: 2
Effect of Thiamethoxam on Injurious Herbicides in Rice 噻虫嗪对水稻有害除草剂的防治效果
Pub Date : 2018-01-01 DOI: 10.4172/2329-8863.1000351
S. M. Martin, J. Norsworthy, R. Scott, J. Hardke, G. Lorenz, E. Gbur
Increases in the number of herbicide-resistant weeds in rice has led to the need for new herbicides and modes of action to control these troublesome weeds. Previous research has indicated that insecticide seed treatments can safen rice from herbicide drift. In 2014 and 2015, two field experiments were conducted at the Rice Research and Extension Center (RREC) near Stuttgart, Arkansas, and at the University of Arkansas Pine Bluff (UAPB) farm near Lonoke, Arkansas, to determine if insecticide seed treatments could prevent unacceptable levels of herbicide injury from preemergence (PRE)- and postemergence (POST)-applied herbicides that are typically injurious to rice. Both studies were planted with the imidazolinone-resistant, inbred variety CL151. ‘Treated’ plots contained the insecticide seed treatment thiamethoxam while ‘nontreated’ plots contained no insecticide seed treatment. Seven herbicides were evaluated in the PRE experiment: clomazone, pethoxamid, fluridone, S-metolachlor, thiobencarb, clethodim, and quizalofop to determine crop injury, stand counts, groundcover, and rough rice yield with and without an insecticide seed treatment compared to plots with no herbicide treatments. Overall, an insecticide seed treatment provided increased rice stands and less herbicide injury than the ‘nontreated’ seed while increasing yield by 500 kg ha-1. Of the herbicides tested, clomazone-, thiobencarb-, clethodim-, and quizalofop-treated plots had equivalent yields to the no-herbicide plots. The POST experiment evaluated propanil, saflufenacil, carfentrazone, and acifluorfen in various tank-mixtures and application timings. Similar to the PRE experiment, plants from treated seed had less herbicide injury 1 and 5 weeks after treatment (WAT) along with an increased canopy height and groundcover percentage. Plants having treated seed also had increased yields when used with some herbicide programs. Overall, the use of an insecticide seed treatment can give the added benefit of less injury from injurious herbicides as well as increased groundcover.
水稻中抗除草剂杂草数量的增加导致需要新的除草剂和行动方式来控制这些麻烦的杂草。以前的研究表明,杀虫剂种子处理可以防止除草剂对水稻的影响。2014年和2015年,在阿肯色州斯图加特附近的水稻研究与推广中心(RREC)和阿肯色州洛诺克附近的阿肯色大学松布拉夫(UAPB)农场进行了两项田间试验,以确定杀虫剂种子处理是否可以防止出苗前(PRE)和出苗后(POST)施用除草剂造成的不可接受水平的除草剂伤害,这些除草剂通常对水稻有害。这两项研究都用抗咪唑啉酮的自交系品种CL151种植。“处理过”的地块含有杀虫剂种子处理剂噻虫嗪,而“未处理”的地块不含杀虫剂种子处理。在PRE试验中评估了七种除草剂:氯马酮、聚噻虫胺、氟立酮、s -甲草胺、硫虫威、氯噻虫胺和quizalofop,以确定与未进行除草剂种子处理的地块相比,有和没有进行杀虫剂种子处理的作物伤害、林分数、地被覆盖和粗粮产量。总体而言,与“未处理”种子相比,杀虫剂种子处理增加了水稻林分,减少了除草剂伤害,同时增加了500 kg ha-1的产量。在所测试的除草剂中,氯虫酮、硫虫威、氯虫啶和喹唑磷处理过的地块与未使用除草剂的地块产量相当。POST实验评估了丙烯、氟苯那西、卡芬曲酮和氟氟芬在不同的罐体混合物和应用时间。与PRE试验相似,处理后1周和5周,处理种子的植株受到的除草剂伤害较少,冠层高度和地被物百分比均有所增加。处理过种子的植物在与某些除草剂一起使用时也增加了产量。总的来说,使用杀虫剂种子处理可以带来额外的好处,减少有害除草剂的伤害以及增加地面覆盖。
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引用次数: 0
Varietal Differences in Flowering, Pod Setting and Photosynthesis in Soybean Under High Temperature Conditions 高温条件下大豆开花、结荚和光合作用的品种差异
Pub Date : 2018-01-01 DOI: 10.4172/2329-8863.1000392
A. Isoda, K. Komaki
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引用次数: 1
Typology Use and Process of Cola Nut (Cola nitida) Produced in Cote d'Ivoire 产自科特迪瓦的可乐坚果的类型、使用和加工
Pub Date : 2018-01-01 DOI: 10.4172/2329-8863.1000379
Nguessan Jean Marc, Nimaga Daouda, Kouassi Kouakou Nestor, N. Charlemagne, Tetchi Abrice Achille, K. J. Halbin, A. Georges
In Côte d'Ivoire, the cola leash maintains financial difficulties due to the increase of post-harvest losses during handling and storage. This investigation based on focus groups was conducted in Ivorian cola nut marketing area (Anyama) to appreciate its use and process. Data showed that cola nuts are characterized par 4 types of colors (white, pink, red and mixed). The major uses of cola nut are for consumption (17.35%), sacrifice (14.23%), dyeing (14%), marriage (13.7%) and baptism (12%). Cola nuts coming from west (Man, Danané, Duekoué, Touleupleu, and Méagui), south (Sikensi and Agboville) and center (Yamoussoukro) zones and with mixed cola nuts are characterized by their resistance and their long shelf life (up to 1 year) than those of San Pedro and Abengourou (6 months). The gathering wood method remains the most commonly used (42%). Machete is the tool preferentially used with 87% to 48% in pod opening and skinning. It should be noted that 86% of actors use chemicals products that are not approved on nuts before packaging. The average losses increased in about 45% at skinning and 20% at storage. 92% of the actors are characterized by a lack of good agricultural practices and hygiene in all the process of cola nut.
在科特迪瓦,可乐皮带维护财政困难由于收获后损失的增加在处理和存储。本研究以焦点小组为基础,在科特迪瓦可乐坚果销售区域(Anyama)进行调查,以了解其使用和加工过程。数据显示,可乐坚果有四种颜色(白色、粉红色、红色和混合色)。可乐果的主要用途是消费(17.35%)、祭祀(14.23%)、染色(14%)、结婚(13.7%)和洗礼(12%)。来自西部(Man、danan、duekou、Touleupleu和msamadagui)、南部(Sikensi和Agboville)和中部(Yamoussoukro)地区的混合可乐坚果的特点是耐盐性和保质期(长达1年)比圣佩德罗和Abengourou的保质期(6个月)长。收集木材的方法仍然是最常用的(42%)。砍刀是豆荚打开和剥皮的首选工具,87%至48%的人使用。需要注意的是,86%的演员在坚果包装前使用了未经批准的化学品。剥皮时平均损失增加45%,储存时平均损失增加20%。92%的演员的特点是在可乐坚果的整个过程中缺乏良好的农业规范和卫生。
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引用次数: 0
Efficacy of Early-Season Applications of Acetochlor and Pethoxamid in Rice 乙草胺和聚氰胺在水稻上的季前施用效果
Pub Date : 2018-01-01 DOI: 10.4172/2329-8863.1000393
J. Norsworthy, Michael Fogleman, T. Barber, E. Gbur
Limited options for controlling herbicide-resistant weedy rice and barnyard grass in Arkansas rice has led to the exploration of alternative herbicide sites of action (SOA). Very long-chain fatty acid (VLCFA)-inhibiting herbicides have been used successfully in US row crops and Asian rice production for control of annual grasses and smallseeded broadleaves but are not labeled for use in US rice. Preliminary experiments have indicated adequate rice tolerance to acetochlor and pethoxamid; however, limited weed control information in rice systems is available. Field experiments were conducted in 2016 and 2017 to evaluate weed control with early-season applications of acetochlor and pethoxamid on weedy rice and annual grasses in rice. In separate experiments, microencapsulated acetochlor at 1050 and 1470 g ai ha-1 or pethoxamid at 420 and 840 g ai ha-1 was applied alone delayed preemergence (DPRE), at spiking, 1-2 leaf, and 1-2 leaf rice. In both years, injury less than 10 and 20% was observed for all acetochlor and pethoxamid treatments, respectively, 2 weeks after treatment (WAT). Both herbicides controlled barnyard grass >92% and suppressed weedy rice 33 to 63% 2 WAT. Regardless of application timing or rate, acetochlor and pethoxamid reduced weedy rice density relative to the non-treated 4 WAT. Control of weedy rice, barnyard grass, broadleaf signal-grass, and large crabgrass was maximized when either herbicide was applied DPRE or to spiking rice and generally decreased as application timing was delayed. Furthermore, control of weed species early in the season influenced rough rice yield, as the highest yields were harvested when acetochlor or pethoxamid was applied DPRE or at spiking. Residual control of annual grasses and suppression of weedy rice from early-season applications of acetochlor and pethoxamid indicate they could be valuable in a season-long rice herbicide program while providing an alternative SOA to combat herbicide-resistant weeds.
控制抗除草剂杂草水稻和阿肯色州稻田草的有限选择导致了对替代除草剂作用位点(SOA)的探索。甚长链脂肪酸(VLCFA)抑制除草剂已成功地用于美国行作物和亚洲水稻生产,以控制一年生草和小种子阔叶,但没有标记在美国水稻中使用。初步试验表明,水稻对乙草胺和聚氰胺具有足够的耐受性;然而,水稻系统的杂草控制信息有限。在2016年和2017年进行了田间试验,评价了早季施用乙草胺和聚氰胺对杂草水稻和一年生禾本科杂草的防治效果。在不同的试验中,分别在抽穗、1-2叶和1-2叶水稻上施用微胶囊化乙草胺1050和1470 g或聚氰胺420和840 g。在这两年中,所有乙草胺和聚氰胺治疗后2周的损伤分别小于10%和20%。两种除草剂对禾草的抑制率均大于92%,对杂草水稻的抑制率为33% ~ 63%。与未处理的4 WAT相比,无论施用时间或施用量如何,乙草胺和聚氰胺都降低了杂草稻密度。无论是DPRE还是穗稻,对杂草稻、稗子草、阔叶信号草和大杂草的控制都达到最大,并且随着施用时间的推迟而普遍减少。此外,在稻季早期控制杂草种类会影响粗粮产量,因为在DPRE或抽穗时施用乙草胺或聚氰胺可获得最高产量。早季施用乙草胺和聚氰胺对一年生草的残留控制和杂草水稻的抑制表明,它们在一季的水稻除草剂计划中可能是有价值的,同时提供了一种替代SOA来对抗抗除草剂杂草。
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引用次数: 1
Effect of Pre-Harvest Cane Burning on Human Health, Soil Quality and Rate of Cane Moisture Loss in Ethiopian Sugarcane Plantations 收获前焚烧对埃塞俄比亚甘蔗种植园人体健康、土壤质量和甘蔗水分流失率的影响
Pub Date : 2018-01-01 DOI: 10.4172/2329-8863.1000396
Alemayehu Dengia, E. Lantinga
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引用次数: 5
Technology Assisted Knowledge Agriculture for Sustainable Development Goals 技术助力知识农业实现可持续发展目标
Pub Date : 2018-01-01 DOI: 10.4172/2329-8863.1000391
Aprajita Srivastava
The most challenging part of the 2030 Agenda for Sustainable Development (SDGs) of ending poverty in “all its form from the planet” is to provide food to 1.45 billion poor people including 689 million, children living in 103 countries. Our finding shows that most of farming communities don't possess knowledge and skill to use new methods of food and livestock production. The farmers in many countries are uneducated and depend upon traditional myths and methods for predicting the season and cultivation. They are deprived of the benefits of the modern researches and largely ignorant of their roles in preventing climate change and sustaining the planet's natural resources. Failure of states, its national economic and banking institutions, high level of corruption, poor implementation of policies, absence of proper marketing facilities, profit making behavior of middle men, lack of finances with the farmers are other key factors. They need to be skilled in areas such as precision farming, proper and optimal use of seeds and fertilizers, availing the benefits of the government policies and banking institutions, understanding the methods for selling their products profitably in the market, apart from the new tools and technology to enhance their production. In our studies, we found that it is possible only by use of ICT technology. Further, our study found that their interest in sustaining planet's natural resources, stopping the use of chemical fertilizers, growing organic food and maintaining climate requires sustained efforts in attitudinal changes. Execution of technology assisted skill development projects in part of India and Ethiopia and their sustained monitoring for many years by us showed that the farmers get motivated and use the new technology when they find the benefits in terms of improved yield and financial gains. They especially get encouraged to use technology to find solutions when they face draught, flood, pest/worm attack and for availing benefit of government schemes. The paper further propounds that the use of emerging technologies for smart farming needs a new radical approach to R&D and farmer's education.
《2030年可持续发展议程》旨在消除“地球上一切形式的贫困”,其中最具挑战性的部分是为生活在103个国家的14.5亿贫困人口提供粮食,其中包括6.89亿儿童。我们的发现表明,大多数农业社区不具备使用粮食和牲畜生产新方法的知识和技能。许多国家的农民没有受过教育,依靠传统的神话和方法来预测季节和耕种。他们被剥夺了现代研究的好处,而且在很大程度上对它们在防止气候变化和维持地球自然资源方面的作用一无所知。国家、国家经济和银行机构的失败、高度腐败、政策执行不力、缺乏适当的营销设施、中间商的盈利行为、与农民缺乏资金是其他关键因素。他们需要熟练掌握精准农业、种子和肥料的正确和最佳使用、利用政府政策和银行机构的好处、了解在市场上销售产品的方法,以及提高产量的新工具和技术。在我们的研究中,我们发现只有使用ICT技术才有可能。此外,我们的研究发现,他们对维持地球自然资源、停止使用化肥、种植有机食品和维持气候的兴趣需要在态度变化方面做出持续的努力。在印度和埃塞俄比亚部分地区实施的技术辅助技能发展项目以及我们多年来对这些项目的持续监测表明,当农民发现新技术在提高产量和经济收益方面的好处时,他们就会积极使用新技术。当他们面临干旱、洪水、虫害/蠕虫袭击时,他们尤其被鼓励使用技术来寻找解决方案,并利用政府计划的好处。该论文进一步提出,在智能农业中使用新兴技术需要一种新的激进方法来进行研发和农民教育。
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引用次数: 5
Evaluation of Various Sugarcane Genotypes for Association of Quality Characters with Cane Yield 不同甘蔗基因型品质性状与产量关系的评价
Pub Date : 2018-01-01 DOI: 10.4172/2329-8863.1000371
Amjad Ali, S. Khan, M. Tahir, A. Farid, A. Khan, S. Khan, N. Ali
The present investigation was carried out to study the association of quality traits with cane yield to establish an appropriate selection strategy based on quality characters. Sixteen sugarcane genotypes comprising two check cultivars were assessed during 2012-15 using RCB design with three replications. Data were collected on brix (%), polarized sugar (%), purity (%), sugar recovery (%) and cane yield (t ha-1). Analysis of variance exhibited highly significant differences between crops for all parameters except brix (%). Among the genotypes highly significant differences were observed for brix (%), polarized sugar (%) and cane yield (t ha-1). Crops × genotypes revealed highly significant differences for cane yield (t ha-1). Genotypes MS-92-CP-99 (72.92 t ha-1), MS-2000-Ho-360 (72.13 t ha-1), MS-2003-HS-274 (72.04 t ha-1) and MS-91-CP-523(71.58 t ha-1) showed superiority regarding cane yield. Positive phenotypic and genotypic correlations were observed for all the traits with cane yield (t/ha) except purity %. Brix % and polarized sugar % showed highly significant and positive correlation with sugar recovery % at genotypic (0.66**, 0.74**) and phenotypic (0.67**, 0.79**) levels. Brix % showed highly significant correlation with polarized sugar (%) at genotypic (1.00**) and phenotypic (0.95**) level. Path analysis showed that highest positive direct effect on cane yield (t ha-1) is exerted by sugar recovery % at genotypic (0.42) and phenotypic (1.94) level showing its importance in clonal selection program for evolving improved sugarcane genotypes. It is suggested that the quality parameters should be taken in to consideration in clonal selection program for evolving improved sugarcane genotypes. Moreover, the genotypes with high cane yield and sugar recovery should be evaluated further.
本研究旨在研究甘蔗品质性状与产量的关系,以建立适合甘蔗品质性状的选择策略。采用RCB设计,3个重复,对2012- 2015年的16个甘蔗基因型(包括2个对照品种)进行了评估。收集了糖度(%)、极化糖(%)、纯度(%)、糖回收率(%)和甘蔗产量(t ha-1)的数据。方差分析显示,除糖度(%)外,作物间各参数差异均极显著。在不同基因型中,糖度(%)、极化糖(%)和甘蔗产量(t ha-1)差异极显著。不同基因型作物的甘蔗产量差异极显著(t ha-1)。基因型MS-92-CP-99 (72.92 t ha-1)、MS-2000-Ho-360 (72.13 t ha-1)、MS-2003-HS-274 (72.04 t ha-1)和MS-91-CP-523(71.58 t ha-1)表现出甘蔗产量优势。除纯度%外,所有性状与甘蔗产量(t/ha)均呈显著的表型和基因型正相关。糖度%和极化糖%与糖回收率%在基因型(0.66**,0.74**)和表型(0.67**,0.79**)水平上呈极显著正相关。在基因型(1.00**)和表型(0.95**)水平上,Brix %与极化糖(%)呈极显著相关。通径分析表明,糖回收率在基因型(0.42)和表型(1.94)水平上对甘蔗产量(t ha-1)的直接正向影响最大,表明其在甘蔗改良基因型的克隆选择程序中具有重要意义。建议在甘蔗改良基因型的克隆选择中应考虑品质参数。此外,甘蔗产量高、糖回收率高的基因型还有待进一步评价。
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引用次数: 6
Review on Potato Late Blight and Potato Tuber Moth and Their Integrated Pest Management Options in Ethiopia 埃塞俄比亚马铃薯晚疫病和马铃薯块茎蛾及其综合防治方案综述
Pub Date : 2018-01-01 DOI: 10.4172/2329-8863.1000331
Damtew Abewoy
Potato is the fourth major crop of the world after rice, wheat and maize. However, in Ethiopia, the yield per unit area of potato is very low compared to those of other countries. There are many factors that reduce the yield of the crop among which the diseases like late blight and insect like tuber moth which play an important role in reduction of the yield. Hence, the objective of this review is to review the importance of these late blight and tuber moth of potato and their management in Ethiopia. In Ethiopia, late blight is occurs throughout the major potato production areas and researches have made estimates of losses ranging from 6.5 to 61.7%, depending on level of susceptibility of the varieties. Different types of management options like cultural, Fungicide Use, biological and Resistant Cultivars are the major management practices which can help in reducing late blight effect. However, because of its new strain development, there is no single effective management strategy of this disease. Therefore adopting integrated disease management approach is the most effective, environmentally safe and low costly to the users. In addition to late blight, potato tuber moth can also cause significant yield loss to potato. Potato tuber moth is the most important constraints of potato production in Ethiopia and it causes up to 42% yield loss in storage. Using different integrated pest management approaches including appropriate cultural practices, using pheromone traps, using biological control, host plant resistant, using botanicals and appropriate rate and time of chemical applications are used for reducing the damage of potato tuber moth.
马铃薯是继水稻、小麦和玉米之后的世界第四大作物。然而,在埃塞俄比亚,马铃薯的单位面积产量与其他国家相比非常低。造成作物减产的因素有很多,其中晚疫病和块茎蛾等病虫害对作物减产起着重要作用。因此,本综述的目的是回顾这些马铃薯晚疫病和块茎蛾的重要性及其在埃塞俄比亚的管理。在埃塞俄比亚,晚疫病发生在整个马铃薯主要产区,根据品种的易感程度,研究人员估计损失在6.5%至61.7%之间。不同类型的管理选择,如栽培、使用杀菌剂、生物和抗性品种是有助于减少晚疫病影响的主要管理做法。然而,由于它的新菌株的发展,没有单一的有效的管理策略。因此,采用疾病综合管理方法对用户来说是最有效、最环保、成本最低的。除晚疫病外,马铃薯块茎蛾也会对马铃薯造成重大的产量损失。马铃薯块茎蛾是埃塞俄比亚马铃薯生产最重要的制约因素,它在储存过程中造成高达42%的产量损失。采用不同的害虫综合管理方法,包括适当的栽培方法、使用信息素诱捕器、生物防治、寄主植物抗性、使用植物药物和适当的化学施药率和时间,以减少马铃薯块茎蛾的危害。
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引用次数: 7
Effect of Cropping Sequence on Agricultural Crops: Implications for Productivity and Utilization of Natural Resources 作物种植顺序对作物生产力和自然资源利用的影响
Pub Date : 2018-01-01 DOI: 10.4172/2329-8863.1000326
F. Negash, Tewodros Mulualem, K. Fikirie
Offensive land uses system with continuous growing of similar crops on the same land largely affect soil physical condition, crop development and had big concerns on long term adverse effects of environmental pollution. The choice of sequence highly based on agricultural system, finance and environmental condition. Conventional monoculture agricultural systems can reduce the soil organic matter contents and structures. The accumulation of crop residues with frequent inclusion of pulse crops in a rotation is vital to improve the biochemical and physical properties of the soil via increasing the labile of organic matter. Surface residue of crops is one of the most effective erosion control measures and increase soil moisture content. Different crops have dissimilar growth and development periods thus, one crop may provide protection from erosive forces during a period of the year and the other may not. Besides, crop rotation combines with different management practices are essential to improve the physical, chemical, biological properties of the soil and thereby control erosion and to maximize crop yield by maintain soil moisture and control disease and pests infestation.
在同一土地上连续种植类似作物的进攻性土地利用制度对土壤物理状况、作物发育影响较大,对环境污染的长期不利影响备受关注。排序的选择高度依赖于农业系统、财政和环境条件。传统的单一耕作制度会降低土壤有机质含量和结构。频繁轮作脉冲作物对作物残茬的积累通过增加有机质的不稳定性来改善土壤的生化和物理特性是至关重要的。作物地表残茬是控制土壤侵蚀和提高土壤含水量的最有效措施之一。不同的作物有不同的生长和发育期,因此,一种作物可能在一年中的某一时期提供免受侵蚀的保护,而另一种可能没有。此外,轮作结合不同的管理措施对于改善土壤的物理、化学和生物特性,从而控制侵蚀,并通过保持土壤水分和控制病虫害来最大限度地提高作物产量至关重要。
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引用次数: 11
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Advances in Crop Science and Technology
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