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Rice (Oryza sativa L.) nutrient management using mycorrhizal fungi and endophytic Herbaspirillum seropedicae

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Journal of Integrative Agriculture 2016年第6期15卷 1385-1394页

作者： H Hoseinzade M R Ardakani A Shahdi H Asadi Rahmani G Noormohammadi M Miransari Department of Agronomy Science and Research Branch Islamic Azad University Tehran *** Iran Department of Agronomy Islamic Azad University Karaj branch 86319615 Iran Rice Research Institute of Iran Rasht 43114843 Iran Soil and Water Research Institute Karaj 394923973 Iran Department of Book&Article Abtin Berkeh L td Company Isfahan *** Iran

Integrated nutrient management with biological and chemical fertilizers can improve rice （Oryza safiva L.） productivity, bio-fortification, soil health and fertility. Accordingly, this study was planned to evaluate the combined effects of biological fertilizers including arbuscular mycorrhizal （AM） fungi （Glomus mosseae） and free-living nitrogen-fixing bacteria （Herbaspi- rillum seropedicae）, as well as chemical fertilizers on the yield and nutrient contents of wetland rice under field conditions. Seedlings were inoculated with AM fungi and the bacteria in the nursery and were then transplanted to the field. The experi- ment was carried out as a split factorial design with three replicates. Treatments included three rates of nitrogen （N 1, N2 and N3） and phosphorous （P1, P2 and P3） fertilizers （100, 75 and 50% of the optimum level） in the main plots and mycorrhizal and bacterial treatments in the sub plots. The total of urea （g） used per plot was equal to N1=200, N2=150 and N3=100 at three different growth stages （seeding, tillering and heading） and the total of P （g） per plot used once at seeding using triple super phosphate including P1 =16, P2=13 and P3=10. Plant growth and yield as well as the concentration of nitrogen （N）, phosphorous （P）, potassium （K）, iron （Fe）, and zinc （Zn） were measured in the soil, straw and grains. N-fertilizer and biological fertilizers had significant effects on root, shoot and grain yield of rice, however, P-fertilizer just significantly affected root and shoot dry weights. Interestingly, analyses of variance indicated that biological fertilization significantly affected all the experimental treatments except straw N. AM fungi, N1 and P1 resulted in the highest rate of rice growth and yield. The interactions of chemical and biological fertilization resulted in significant effects on grain Zn, Fe, P, and N as well as soil Fe, K and N. The highest rate of grain nutrient uptake was resulted by the combined use of biological fertilizatio

关键词： bio-fortification nutrient management yield biological fertilizer rice (Oryza sativa L.)

Ecological fitness of brown planthopper, Nilaparvata lugens (Stål), to rice nutrient management

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Ecological Processes 2017年第1期6卷 149-158页

作者： Md.Mamunur Rashid Mahbuba Jahan Khandakar S.Islam Md.Abdul Latif Plant Physiology Division Bangladesh Rice Research Institute(BRRI)Gazipur 1701Bangladesh Department of Entomology Bangladesh Agricultural UniversityMymensingh 2202Bangladesh Plant Pathology Division Bangladesh Rice Research Institute(BRRI)Gazipur 1701Bangladesh

Introduction:The brown planthopper(BPH),Nilaparvata lugens(Stål)(Hemiptera:Delphacidae),is a notorious insect pest of *** supplementation can alter plant biochemical compositions which may indirectly affect on ecological fitness parameters of its insect ***,few findings are available on nutrient-induced ecological fitness of BPH and relationship of BPH fitness parameters with its host rice plant biochemical ***:We studied the main and interaction effects of nitrogen(N),phosphorus(P),and potassium(K)inputs on BPH fitness,as measured by the following variables:nymph survival,nymphal duration,adult body weight,and its *** planthopper fitness parameters were regressed as function of rice plant(Oryza sativa)biochemical composition.A completely randomized design with four replications in a factorial scheme was used considering N,P,and K levels as ***:Nitrogen application to the host rice plants provided greater survival and enhanced body weight of *** nymphal duration was found to decrease with N subsidy that caused shorter generation time of *** compounds N and soluble protein(SP),total free sugar(TFS),and silicon(Si)content in rice plant tissue correlated strongly with all fitness traits of ***,SP,and TFS associated positively with BPH survival and body weight,while negatively with nymphal *** contrast,Si had negative correlation with BPH survival and body weight,but positive with nymphal *** supplementation to host plant contributed to increase BPH body *** of P with all parameters of BPH were weak except body weight which was highly significant and *** between N and P inputs demonstrated significant effect on BPH body *** of K had no significant effect on BPH survival and *** analysis did not detect significant relationship of BPH fitness parameters with plant tissue content of ***:The res

关键词： Nilaparvata lugens nutrient management Survival Nymphal duration Body weight

Machine learning in nutrient management:A review

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Artificial Intelligence in Agriculture 2023年第3期9卷 1-11页

作者： Oumnia Ennaji Leonardus Vergütz Achraf El Allali Chair of Soil Science University Mohammed VI PolytechnicLot 660Hay Moulay RachidBenguerir 43150Morocco African Genome Center University Mohammed VI PolytechnicLot 660Hay Moulay RachidBenguerir 43150Morocco

In agriculture,precise fertilization and effective nutrient management are *** learning(ML)has recently been increasingly used to develop decision support tools for modern agricultural systems,including nutrient management,to improve yields while reducing expenses and environmental *** based systems require huge amounts of data from different platforms to handle non-linear tasks and build predictive models that can improve agricultural *** study reviews machine learning based techniques for estimating fertilizer and nutrient status that have been developed in the last decade.A thorough investigation of detection and classification approaches was conducted,which served as the basis for a detailed assessment of the key challenges that remain to be *** research findings suggest that rapid improvements in machine learning and sensor technology can provide cost-effective and thorough nutrient assessment and decision-making *** research directions are also recommended to improve the practical application of this technology.

关键词： Fertilization nutrient management Machine learning

nutrient management in Fragrant Rice: A Review

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Agricultural Sciences 2021年第12期12卷 1538-1554页

作者： Newton Chandra Paul Mst. Tamanna Tasmim Shahin Imran Md. Asif Mahamud Jotirmoy Chakrobortty Rakibul Hasan Md. Rabbi Shubroto Kumar Sarkar Swapan Kumar Paul Department of Agronomy Khulna Agricultural University Khulna Bangladesh Department of Horticulture Bangladesh Agricultural University Mymensingh Bangladesh Department of Agricultural Chemistry Khulna Agricultural University Khulna Bangladesh Department of Soil Science Khulna Agricultural University Khulna Bangladesh Department of Agronomy Bangladesh Agricultural University Mymensingh Bangladesh

Rice (Oryza sativa L.) is the most important cereal food grain crop and is consumed by the majority of the world’s human population. Among all cultivars, fragrant/aromatic rice is preferred by the better part of the human population because of its aroma, taste and cooking quality. But most of the fragrant rice varieties are low yielding and easily sensitive to the surrounding environmental condition. Among different agronomic performances, proper nutrient management can improve the yield of fragrant rice not only by giving the required amount of nutrients but also by maintaining the health of the soil and the quality of the produce. In most cases, traditional agricultural practices degraded soil health and increased environmental pollution which leads to inferior grain quality. On the other hand, excessive application of chemical fertilizers reduced the nutrient status of the soil and badly affected the soil productivity and environmental stability. Therefore, a suitable approach of nutrient management is required to keep the production of fragrant rice to a notable amount and increase the nutrient use efficiency of soil. Application of manures and fertilizers in an appropriate dose which is the main object of nutrient management is required for its utmost importance in the growth and development of the crop that finally results in better yield and grain quality. Therefore, nutrient management is an important aspect in aromatic rice production to attain sustainable grain yield and high economic return with better quality of produce.

关键词： nutrient management Fragrant Rice Growth Yield Grain Quality

nutrient management for Eucalypt Plantations in South China

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Chinese Forestry Science and Technology 2002年第1期1卷 33-45页

作者： KU Daping Bernie DELL1. Research Institute of Tropical Forestry, CAF, Guangzhou 510520, China 2. Murdoch University. Perth. Australia (dell@central.murdoch.edu.au)

Eucalypts are very popular for revegetation in many parts of south China because of their capacity to tolerate degraded sites and unfertile soils,and their fast growth potential to coppice. This paper reviews a decade of field trials in china, undertaken as part of several bilateral researchprograms in plantation forestry, concerning the use of fertilizers, harvest residue management and inoculation with ectomycorrhizal fungi. One of the key questions addressed is whether the productivity of plantation ...

关键词： afforestation sustainable forestry nutrient management mycorrhizal fungi

Exploring Crop Yield Benefits of Integrated Water and nutrient management Technologies in the Desert Margins of Africa： Experiences from Semi-Arid Zimbabwe

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Journal of Agricultural Science and Technology(A) 2011年第3X期1卷 401-414页

作者： I. Nyagumbo Department of Soil Science and Agricultural Engineering University of Zimbabwe Box MP 167 Mt Pleasant Harare Zimbabwe CIMMYT Southern Africa Regional Office Box MP 163 Mt. Pleasant Harare Zimbabwe

The benefits of integrating locally adaptable water and nutrient management technologies were explored in semi-arid Zimbabwe. On-farm maize based experiments were set up on six farmers＇ fields in Ward 5, Shurugwi. Three tillage systems namely Post-Emergence Tied Ridging （PETR）, Rip ＆ Pot-Holing （RPH） and Conventional Mouldboard Ploughing （CMP） were integrated to three nutrient management regimes, i.e. a control with no fertility amelioration, pit-stored cattle manure band applied at 10 t/ha and the latter with an additional top dressing of ammonium nitrate （34.5% N） at 100 kg/ha. On each site the treatments were set up as a completely randomized split-plot block design replicated 3 times with tillage （water management） as the main treatment and fertility as the sub-treatment. CMP mimicked the farmers＇ common land preparation practice while PETR and RPH systems represented the improved water harvesting tillage techniques. Results revealed significant nutrient management effects right from the first season giving 3-year means of 1,298, 1,977 and 2,490 kg/ha for the control, manure and manure plus fertilizer treatments respectively. On the other hand, water harvesting tillage effects were insignificant initially （2003/4） but had beneficial effects in subsequent seasons （2004/5 and 2005/6） with 3-year grain yield means of 1,624, 2,032 and 2,108 kg/ha for CMP, PETR and RPH, respectively. Maximum yield benefits from integrating PETR and RPH with manure ＋ AN fertility ameliorants amounted to 218 and 261% respectively, compared to CMP with no fertility amendment. The results therefore showed increased benefits when in-situ water harvesting tillage techniques are integrated with appropriate nutrient ameliorants giving realizable food security benefits to the farmer.

关键词： Crop yield in-situ water harvesting nutrient management tillage water.

Effects of Different nutrient management Systems and Cultivation Methods on Crop Yield and Soil Fertility

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Agricultural Science & Technology 2011年第11期12卷 1674-1679页

作者：刘小玲贾良良韩宝文李春杰刘文菊刘孟朝河北农业大学资源与环境科学学院河北保定071001 河北省农林科学院农业资源环境研究所河北石家庄050051

[Objective] The aim was to provide scientific basis for improving the middle and low yielding fields fertility and farmland productivity. [Method] A field experiment was carried out to study the effects of different management practices （including nutrient management systems and cultivation methods） on crop yield and soil fertility in winter wheat/summer maize rotation system. [Result] The crop yield in the treatment of the high yield and high efficiency system was remarkably higher than farmer conventional management practice. After five crop seasons experiment, the contents of soil organic matter for high yield and high efficiency system increased 2.72-3.01 g/kg, and that of soil total nitrogen increased 0.12-0.16 g/kg, the soil Olsen-P increased 5.2 mg/kg and the soil available K （NH4OAC-K） increased about 37.8 mg/kg. [Conclusion] Considering the yield and soil fertility comprehensively, the management system of high yield and high efficiency could effectively increase the crop yield and improve the soil fertility.

关键词： nutrient management Winter wheat-summer maize rotation Soil fertility Tillage and cultivation mode

Combined Effects of nutrient and Pesticide management on Soil Microbial Activity in Hybrid Rice Double Annual Cropping System

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Rice science 2004年第3期11卷 140-146页

作者： XIEXiao-mei LIAOMin LIUWei-ping SusanneKLOSE NaturalResourcesScienceDepartment CollegeofEnvironmentalandResourcesSciencesZhejiangUniversityHangzhou310029China EnvironmentalScienceDepartment CollegeofEnvironmentalandResourcesSciencesZhejiangUniversityHangzhou310029China InstituteofSoilScience FacultyofForestGeoandHydroSciencesDresdenUniversityofTechnologyTharandtD-01735Germany

Combined effects on soil microbial activity of nutrient and pesticide management in hybrid rice double annual cropping system were studied. Results of field experiment demonstrated significant changes in soil microbial biomass phospholipid contents, abundance of heterotrophic bacteria and proteolytic bacteria, electron transport system (ETS)/dehydrogenase activity, soil protein contents under different management practices and at various growth stages. Marked depletions in the soil microbial biomass phospholipid contents were found with the advancement of crop growth stages, while the incorporation of fertilizers and/or pesticides also induced slight changes, and the lowest microbial biomass phospholipid content was found with pesticides application alone. A decline in the bacterial abundance of heterotrophic bacteria and proteolytic bacteria was observed during the continuance of crop growth, while the lowest abundance of heterotrophic bacteria and proteolytic bacteria was found with pesticides application alone, which coincided with the decline of soil microbial biomass. A consistent increase in the electron transport system activity was measured during the different crop growth stages of rice. The use of fertilizers (NPK) alone or combined with pesticides increased it, while a decline was noticed with pesticides application alone as compared with the control. The soil protein content was found to be relatively stable with fertilizers and/or pesticides application at various growth stages in both crops undertaken, but notable changes were detected at different growth stages.

关键词： nutrient management pesticide management soil microbial activity hybrid rice

Mitigation strategies for soil acidification based on optimal nitrogen management

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Frontiers of Agricultural Science and Engineering 2024年第2期11卷 229-242页

作者： Pengshun WANG Donghao XU Prakash LAKSHMANAN Yan DENG Qichao ZHU Fusuo ZHANG College of Resources and Environmental Sciences China Agricultural UniversityBeijing 100193China National Academy of Agriculture Green Development China Agricultural UniversityBeijing 100193China Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin College of Resources and EnvironmentSouthwest UniversityChongqing 400716China Sugarcane Research Institute Guangxi Academy of Agricultural SciencesNanning 530007China Queensland Alliance for Agriculture and Food Innovation University of QueenslandSt Lucia 4067BrisbaneQueenslandAustralia

Soil acidification is a serious constraint to food production *** review explores its primary causes,with a focus on the role of nitrogen fertilizer,and suggests mitigation strategies based on optimal N *** acidification is determined by the leaching of weak acid mainly caused by climate and soil conditions,whereas the use of ammonium-based fertilizers,nitrate leaching and removal of base cations(BCs)by crop harvesting mostly accounts for anthropogenic *** addition,low soil acid buffering capacity,mainly determined by soil parent materials and soil organic matter content,also accelerates *** study proposes targeted mitigation strategies for different stages of soil acidification,which include monitoring soil carbonate content and p H of soils with p H>6.5(e.g.,calcareous soil),use of alkaline amendments for strongly acidic soils(p Hmanagement system that balances acid production and soil buffering capacity.

关键词： Soil acidification nutrient management nitrogen soil buffering capacity