Role of Soil Microbes on Crop Yield against Edaphic Factors of Soil

It is expected that up to 2050, human population will be doubled. Agricultural researchers are striving their best to meet the food challenges. To get the higher yield, nitrogenous fertilizers use is also being increased. Nitrogenous fertilizers play vital roles in different plant’s growth and developmental processes. But, excessive use of nitrogen is no more beneficial to plants. Only 30 to 50% nitrogen use efficiency is recorded in plants, the remaining nitrogen is used by soil microbes, leached down in soil profile or volatilized. Different agronomical practices have been practiced and suggested for the general cultivation. Proper use of these agronomical practices can increase the crop yield and nitrogen use efficiency.

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Regional factors of grain crop yield growth in the dynamics of recent years

Economy of agricultural and processing enterprises ◽

10.31442/0235-2494-2021-0-9-29-36 ◽

2021 ◽

pp. 29-36

Author(s):

Yuriy P. Bondarenko ◽

Keyword(s):

Crop Yield ◽

Crop Yields ◽

Methodological Approach ◽

Climatic Conditions ◽

Grain Production ◽

Fixed Assets ◽

Production Complex ◽

Grain Crop ◽

Regional Factors

In view of the significant increase in grain production in Russia, a methodological approach is proposed to analyze the significance of regional factors of grain crop yield growth in the country in recent years, especially against the background of the lack of expansion of acreage under grain crops. Based on the results of the calculations, the effectiveness of the influence of climatic, financial, infrastructural and production factors on the growth of grain yield was described. It is concluded that various factors had different effects on the growth of grain crop yields in regions with high-, medium - and low-intensity grain production complex. The role of reducing the influence of financial factors on the growth of grain yields and a sharp increase in the role of agro-climatic conditions is noted. The revealed trend of increasing depreciation of fixed assets of agriculture as a whole is particularly emphasized, with a slight increase in the volume of their renewal and modernization in the leading regions in terms of grain crop yield growth. Without taking appropriate measures to reduce the depreciation of fixed assets in the near future, this will result in a sharp decline in the achieved volumes of grain production in the country.

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Role of soil microbes in micronutrient solubilization

10.1016/b978-0-323-85163-3.00018-1 ◽

2022 ◽

pp. 131-150

Author(s):

Bisweswar Gorain ◽

Srijita Paul ◽

Manoj Parihar

Keyword(s):

Soil Microbes

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The Role of Trehalose 6-Phosphate in Crop Yield and Resilience

PLANT PHYSIOLOGY ◽

10.1104/pp.17.01634 ◽

2018 ◽

Vol 177 (1) ◽

pp. 12-23 ◽

Cited By ~ 34

Author(s):

Matthew J. Paul ◽

Asier Gonzalez-Uriarte ◽

Cara A. Griffiths ◽

Keywan Hassani-Pak

Keyword(s):

Crop Yield

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Response of Barley Plants to Drought Might Be Associated with the Recruiting of Soil-Borne Endophytes

Microorganisms ◽

10.3390/microorganisms8091414 ◽

2020 ◽

Vol 8 (9) ◽

pp. 1414

Author(s):

Luhua Yang ◽

Peter Schröder ◽

Gisle Vestergaard ◽

Michael Schloter ◽

Viviane Radl

Keyword(s):

Drought Stress ◽

Bacterial Communities ◽

Soil Microbes ◽

Plant Biomass ◽

Management Strategies ◽

Plant Performance ◽

Soil Microbiome ◽

Bacterial Endophytes ◽

Natural Conditions

Mechanisms used by plants to respond to water limitation have been extensively studied. However, even though the inoculation of beneficial microbes has been shown to improve plant performance under drought stress, the inherent role of soil microbes on plant response has been less considered. In the present work, we assessed the importance of the soil microbiome for the growth of barley plants under drought stress. Plant growth was not significantly affected by the disturbance of the soil microbiome under regular watering. However, after drought stress, we observed a significant reduction in plant biomass, particularly of the root system. Plants grown in the soil with disturbed microbiome were significantly more affected by drought and did not recover two weeks after re-watering. These effects were accompanied by changes in the composition of endophytic fungal and bacterial communities. Under natural conditions, soil-derived plant endophytes were major colonizers of plant roots, such as Glycomyces and Fusarium, whereas, for plants grown in the soil with disturbed microbiome seed-born bacterial endophytes, e.g., Pantoea, Erwinia, and unclassified Pseudomonaceae and fungal genera normally associated with pathogenesis, such as Gibberella and Gaeumannomyces were observed. Therefore, the role of the composition of the indigenous soil microbiota should be considered in future approaches to develop management strategies to make plants more resistant towards abiotic stress, such as drought.

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The Physiological Role of Bio-Fertilizers in Improving the Crop Yield of Black Cumin and Common Bean Intercropping

Journal of Crop production and processing ◽

10.29252/jcpp.8.1.87 ◽

2018 ◽

Vol 8 (1) ◽

pp. 87-101

Author(s):

A. Pirzad ◽

S. Davirani ◽

J. Jalilian ◽

E. Rezaei Chiyaneh ◽

◽

...

Keyword(s):

Common Bean ◽

Crop Yield ◽

Physiological Role ◽

Black Cumin

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Ecological correlates of crop yield growth and interannual yield variation at a global scale

Web Ecology ◽

10.5194/we-21-15-2021 ◽

2021 ◽

Vol 21 (1) ◽

pp. 15-43

Author(s):

Gabriela Gleiser ◽

Nicolay Leme da Cunha ◽

Agustín Sáez ◽

Marcelo Adrián Aizen

Keyword(s):

Crop Yield ◽

Life Form ◽

Reproductive Organs ◽

Global Scale ◽

Comparative Approach ◽

Continuous Increase ◽

Yield Variation ◽

Ecological Correlates ◽

Volume Production

Abstract. Artificial selection and genetic engineering plus an expanding repertoire and use of agrochemical inputs have allowed a rapid and continuous increase in crop yield (i.e., volume production per unit area) over the last century, which is needed to fulfill food demands from a growing human population. However, the first signs of yield deceleration and stagnation have already been reported for some globally important crops. Therefore, the study of the drivers of yield growth and its variation is essential for directing research and policies aiming at ensuring food security in the forthcoming years. We used data on mean and variability in annual yield growth for 107 globally important crops to assess the role of environmental (i.e., climatic region) and plant intrinsic traits (i.e., type of harvested organ, pollinator dependence, and life form) as drivers of change in yield growth and its stability. We applied a comparative approach to control for biases associated with phylogenetic non-independence among crops, an approach rarely used in agronomic studies. Average yield growth and its variation were not phylogenetically structured. Yield growth decreased with increasing pollinator dependence in tree crops but not in herbaceous and shrubby crops. Interannual yield variation tended to increase with increasing pollinator dependence, and it was higher in crops from temperate regions, in those cultivated for their reproductive organs, and in tree and shrubby crops as compared with herbaceous ones. Information on ecological correlates of crop yield growth and interannual yield variation can be used in the design of more sustainable and diversified agriculture schemes.

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