Rhizospheric Plant-Microbe Interactions: Key Factors to Soil Fertility and Plant Nutrition

2014 ◽  
pp. 127-145 ◽  
Author(s):  
Brijesh Kumar Yadav ◽  
Mohd. Sayeed Akhtar ◽  
Jitendra Panwar
Keyword(s):  
Soil Fertility ◽  
Plant Nutrition ◽  
Key Factors ◽  
Microbe Interactions

The overview of existing knowledge on medical cannabis plants growing  

2021 ◽  
Author(s):  
Matěj Malík ◽  
Jiří Velechovský ◽  
Pavel Tlustoš
Keyword(s):  
Plant Nutrition ◽  
Modern Medicine ◽  
Essential Elements ◽  
Pharmaceutical Sciences ◽  
Medical Cannabis ◽  
Key Factors ◽  
Factors Affecting ◽  
Cultivation Technology ◽  
Active Substances ◽  
Selection Of

The use of cannabis for medicinal purposes dates back well before the era of modern medicine, but in recent years research into the use of medical cannabis in the medical and pharmaceutical sciences has grown significantly. In European countries, most cannabis plants have been and still are grown for industrial purposes. For this reason, hemp cultivation technology is relatively well researched, while little is known about the key factors affecting cannabis cultivation for medical purposes. The active substances of cannabis plant targeted by this review are called phytocannabinoids. The biosynthesis of phytocannabinoids is relatively well understood, but the specific environmental factors that influence the type and number of phytocannabinoids have been much less studied. Indoor or greenhouse cultivation, which uses automated lighting, ventilation, irrigation systems and complex plant nutrition has become much more sophisticated and appears to be the most effective method for producing medical cannabis. There are many different cultivation systems for cannabis plants, but one of the essential elements of the process is an optimal plant nutrition and selection of fertilisers to achieve it. This review summarises the existing knowledge about phytocannabinoid biosynthesis and the conditions suitable for growing plants as sources of medical cannabis. This review also attempts to delineate how nutrient type and bioavailability influences the synthesis and accumulation of specific phytocannabinoids based on contemporary knowledge of the topic.  

scholarly journals Soil Fertility Assessment of an High Natural Value Eligible Area in South-Eastern Transylvania

2019 ◽  
Vol 13 (1) ◽  
pp. 57-67
Author(s):  
Monica Dumitrașcu ◽  
Mihaela Lungu ◽  
Sorin Liviu Ștefănescu ◽  
Victoria Mocanu ◽  
Gabi Mirela Matei ◽  
...  
Keyword(s):  
Soil Fertility ◽  
Plant Nutrition ◽  
Agricultural Practices ◽  
Total Porosity ◽  
Soil Bulk Density ◽  
Soil Reaction ◽  
Short Supply ◽  
South Eastern ◽  
Growth And Nutrition ◽  
Wide Range

Abstract As low-input environmentally friendly agricultural practices are currently associated with the delivery of a wide range of public goods and socioeconomic benefits, the strategy of European Union in mitigating climate change effects, protecting environment and ensuring public health has, among others, focused around preserving the High Natural Value (HNV) areas. About a quarter of the land in Romania is potentially covered by HNV farming and eligible for associated support payments, mostly along the chain of the Carpathian Mountains. Since soil systematic data on HNV area are scarce, recent research developments currently undertake to build up a first national HNV soil data base. Soil fertility state in a HNV payment eligible area of south-eastern Transylvania was studied in seven in-depth dug profiles and seven additional shallow dug profiles. Soil samples were taken by genetic horizons as well as agrochemical samples from the upper soil layers (0-20 cm). Physical, chemical, and microbiological analyses revealed that the studied soils have a medium clayey loamy texture, good fertility and are subject to an adequate HNV management in the area, as the analytical values mostly range in favorable intervals for plant growth and nutrition. Thus, soil reaction is moderately acid up to slightly alkaline in the presence of carbonates, the soil organic matter, generally well mineralized, reaches fair levels and the high and very high cation exchange capacity ensure good conditions for plants growth and nutrition whilst nitrogen and potassium supply is adequate. Phosphorus is the only element in short supply – a situation often encountered in Romania unfertilized soils. Soil bulk density and total porosity are also favorable for root growth and spreading and plant nutrition. Microorganisms’ activity is diverse and is also adequate for plant nutrition.

Effect of initial soil fertility and integrated plant nutrition system (IPNS) on yield and NPK uptake by brinjal on an Alfisol

2015 ◽  
Author(s):  
V. Dhinesh ◽  
R. Santhi
Keyword(s):  
Soil Fertility ◽  
Plant Nutrition ◽  
Tamil Nadu ◽  
Second Phase ◽  
Fertilizer N ◽  
Available N ◽  
Fertility Gradient ◽  
Npk Uptake ◽  
Initial Soil ◽  
Four Levels

Following Inductive methodology (fertility gradient concept), a field experiment was conducted to study the effect of initial soil fertility and Integrated Plant Nutrition System (IPNS) on the yield of brinjal (var. CO 2) on Typic Rhodustalf of Tamil Nadu. In the first phase of the experiment, variations in soil fertility with reference to soil available N, P and K was established among the three fertility strips with the addition of fertilizers at graded levels and by growing fodder sorghum as gradient crop. In the second phase viz., the test crop experiment with brinjal, consisted of four levels each of fertilizer N, P2O5 and K2O and three levels of farm yard manure (FYM). The highest yield of 35.8 t ha-1was recorded with 150:75:75 kg ha-1 of fertilizer N, P2O5 and K2O along with 12.5 t ha-1 of FYM in strip III with initial soil available NPK status of 203, 34 and 500 kg ha-1 respectively. The fruit yield as well as NPK uptake by brinjal had increased with increase in initial soil fertility and with increase in the levels of fertilizer N, P2O5 and K2O and FYM.

scholarly journals ​Micronutrients: Role in Plants, their Spatial Deficiency and Management in Indian Soils: A Review

2021 ◽  
Author(s):  
Alok Singh Jayara ◽  
Sharad Pandey ◽  
Rajeew Kumar
Keyword(s):  
Spatial Distribution ◽  
Soil Fertility ◽  
Plant Nutrition ◽  
Crop Production ◽  
Essential Elements ◽  
Animal Nutrition ◽  
Indian Soils

Soil fertility and plant nutrition, both are governed by criteria of essentiality (Arnon and Stout in 1939 and further modified by Arnon in 1954). Earlier there were 16 essential elements and now it is 17. Researchers, policymakers and farmers mostly concerned themselves for the primary nutrients i.e. NPK to manage the crops and it further aggravate the deficiency of micronutrients which is now major concern for all because it is affecting human and animal nutrition along with plants. This deficiency is concerns not only the plant nutrition but has far reaching implication in form of nutritional insecurity among the livestock and marginal section of population. Thus it is important to study the importance of the micronutrients to take care these challenges and the management of micronutrients in crop production is based on their spatial distribution. Therefore, an attempt has been made to summarize importance of micronutrients for crop production according to their spatial distribution in India.

scholarly journals Rethinking Crop Nutrition in Times of Modern Microbiology: Innovative Biofertilizer Technologies

2021 ◽  
Vol 5 ◽  
Author(s):  
Eduardo K. Mitter ◽  
Micaela Tosi ◽  
Dasiel Obregón ◽  
Kari E. Dunfield ◽  
James J. Germida
Keyword(s):  
Plant Nutrition ◽  
Biodiversity Loss ◽  
Key Factors ◽  
Commercial Agriculture ◽  
Naturally Occurring ◽  
Promising Strategy ◽  
Crop Nutrition ◽  
Significant Step ◽  
Bacteria And Fungi ◽  
Global Population

Global population growth poses a threat to food security in an era of increased ecosystem degradation, climate change, soil erosion, and biodiversity loss. In this context, harnessing naturally-occurring processes such as those provided by soil and plant-associated microorganisms presents a promising strategy to reduce dependency on agrochemicals. Biofertilizers are living microbes that enhance plant nutrition by either by mobilizing or increasing nutrient availability in soils. Various microbial taxa including beneficial bacteria and fungi are currently used as biofertilizers, as they successfully colonize the rhizosphere, rhizoplane or root interior. Despite their great potential to improve soil fertility, biofertilizers have yet to replace conventional chemical fertilizers in commercial agriculture. In the last 10 years, multi-omics studies have made a significant step forward in understanding the drivers, roles, processes, and mechanisms in the plant microbiome. However, translating this knowledge on microbiome functions in order to capitalize on plant nutrition in agroecosystems still remains a challenge. Here, we address the key factors limiting successful field applications of biofertilizers and suggest potential solutions based on emerging strategies for product development. Finally, we discuss the importance of biosafety guidelines and propose new avenues of research for biofertilizer development.

scholarly journals Integrated Plant Nutrition System in Cotton – An Approach Towards Climate Change Mitigation

2021 ◽  
Vol 23 (10) ◽  
pp. 413-418
Author(s):  
S. Praveena Katharine ◽  
◽  
M. Suguna Devakumari ◽  
S. Sumaiya Parveen ◽  
◽  
...  
Keyword(s):  
Climate Change ◽  
Soil Fertility ◽  
Plant Nutrition ◽  
Crop Productivity ◽  
Nitrous Oxide Emissions ◽  
Optimum Level ◽  
Cotton Production ◽  
Nitrogen Levels ◽  
Improvement Programme ◽  
Soil Fertility Status

Agriculture is both affected by climate change but also contributes to it. As a sector, agriculture must therefore both adapt to changes and offers options for mitigation ie reducing greenhouse gas emissions and store carbon. The objective of the study is to explore the optimum level of plant nutrient for sustaining the desired crop productivity in hybrid cotton through optimization of benefit from all possible resources of plant nutrients in an integrated manner and to mitigate the green house gas emission through the adoption of Integrated Plant Nutrition System. The experiment was carried out in three locations with different soil fertility status with special emphasis to nitrogen levels in the soils. The fertilizer doses were fixed based on the soil test values and fertility grouping / indexing by International soil fertility evaluation and improvement programme. As part of organics, FYM was applied at two different levels, and the fertilizers were reduced accordingly. The results proved that application of organic manure @ 12.5 t ha-1 along with the recommended doses of nutrients proved superior in seed cotton production as well reduced nitrous oxide emissions.

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