scholarly journals Effect of Organic and Inorganic Sources of Nitrogen on Yield, Microbial Load and Soil Nutrient Status of Pearl Millet

2021 ◽  
pp. 67-75
Author(s):  
Tharapureddi Bhargavi ◽  
K. Mosha ◽  
M. Martin Luther ◽  
P. Venkata Subbaiah ◽  
N. Swetha
Keyword(s):  
Pearl Millet ◽  
Inorganic Nitrogen ◽  
Soil Nutrient ◽  
Nutrient Status ◽  
Microbial Load ◽  
Soil Nutrient Status ◽  
Similar Treatment ◽  
Soil Microbial ◽  
Soil Microbial Population ◽  
The Impact

Soil microbial population and soil nutrient status are important criteria for improving the yields. So this study is conducted with an objective to know the impact of organic and inorganic sources of nitrogen on yield, soil microbial load and nutrient status of the soil in pearl millet. A field experiment was conducted during kharif, 2019 at Agricultural College Farm, Bapatla on sandy soils with eight treatments consisting combined organic and inorganic nitrogen sources. The highest grain yield (2955 kg ha-1), straw (5867 kg ha-1) yield and soil nitrogen status (164.10 kg ha -1) were recorded with 75% Soil Test Based Nitrogen (STBN) + 25% vermicompost + Azospirillum @ 5 kg ha-1 and was followed by statistically similar treatment 100% STBN + Azospirillum @ 5 kg ha-1. Significantly higher microbial load (Bacteria, Fungi and Actinomycetes), P and K status in soil recorded with the treatments where 50% of STBN applied through FYM (50% STBN + 50% FYM + Azospirillum @ 5 kg ha-1), whereas lowest was recorded with chemical fertilizer alone. The combined sources of nitrogen both organic and inorganic fertilizers would be able to improve soil fertility and soil microbial load and finally improve the yields.

Short-term impacts of winter bale grazing beef cows on forage production and soil nutrient status in the eastern Canadian prairies

2021 ◽  
Author(s):  
Gwen Donohoe ◽  
Don Flaten ◽  
Faith Omonijo ◽  
Kim Ominski
Keyword(s):  
Untreated Control ◽  
Perennial Grass ◽  
Soil Nutrient ◽  
Nutrient Status ◽  
Large Mass ◽  
Forage Yield ◽  
Forage Production ◽  
Soil Nutrient Status ◽  
Canadian Prairies ◽  
The Impact

The impact of winter bale grazing on forage productivity and nutrient cycling was determined near Winnipeg, MB. Variable distribution of nutrients and forage yield within bale grazed plots on a perennial grass-legume forage field was identified using an intensive grid sampling method. In bale-grazed plots, mean dry matter (DM) yield of forage decreased 68% in year one following bale grazing, with no difference in DM yield in year two following bale grazing, relative to an untreated control. Decreased yield was attributed to the large mass of waste feed and feces (21% of feed delivered) that remained at the centre of each bale-grazed plot, where each bale was placed. Concentrations of crude protein, total digestible nutrients, phosphorus (P), and potassium in forage increased in the first growing season following winter bale grazing compared to the control, particularly at the centre of each bale-grazed plot. Concentrations of residual nitrate-nitrogen and Olsen P in soil were 15 and 2.5 times greater, respectively, at the centre of the bale-grazed plots compared to untreated control plots. Dispersion of waste feed packs when bale grazing in sub-humid climates on clay soils is recommended to minimize smothering and encourage rapid decomposition of waste feed and feces. Long-term studies are needed to determine the potential benefits and risks of bale grazing to forage productivity and soil nutrient status in the eastern Canadian prairies.

scholarly journals Metagenomic Analysis Exploring Taxonomic and Functional Diversity of Soil Microbial Communities in Sugarcane Fields Applied with Organic Fertilizer

2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
Ruoyu Li ◽  
Ziqin Pang ◽  
Yongmei Zhou ◽  
Nyumah Fallah ◽  
Chaohua Hu ◽  
...  
Keyword(s):  
Microbial Communities ◽  
Organic Fertilizer ◽  
Soil Microbial Communities ◽  
Soil Nutrient ◽  
Nutrient Status ◽  
Nucleotide Metabolism ◽  
Chemical Fertilizer ◽  
Organic Chemical ◽  
Soil Nutrient Status ◽  
Soil Microbial

Organic fertilizers are critically important to soil fertility, microbial communities, and sustainable agricultural strategies. We compared the effect of two fertilizer groups (organic+chemical fertilizer: OM, chemical fertilizer: CK) on sugarcane growth, by observing the difference in microbial communities and functions, soil nutrient status, and agronomic characters of sugarcane. The results showed that the sugar content and yield of sugarcane increased significantly under organic fertilizer treatment. We believe that the increased soil nutrient status and soil microorganisms are the reasons for this phenomenon. In addition, redundancy analysis (RDA) shows that the soil nutrient condition has a major impact on the soil microbial community. In comparison with CK, the species richness of Acidobacteria, Proteobacteria, Chloroflexi, and Gemmatimonadetes as well as the functional abundance of nucleotide metabolism and energy metabolism increased significantly in the OM field. Moreover, compared with CK, genes related to the absorption and biosynthesis of sulfate were more prominent in OM. Therefore, consecutive organic fertilizer application could be an effective method in reference to sustainable production of sugarcane.

scholarly journals Liming Positively Modulates Microbial Community Composition and Function of Sugarcane Fields

Agronomy ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 808 ◽  
Author(s):  
Ziqin Pang ◽  
Muhammad Tayyab ◽  
Chuibao Kong ◽  
Chaohua Hu ◽  
Zhisheng Zhu ◽  
...  
Keyword(s):  
Microbial Communities ◽  
Arbuscular Mycorrhizae ◽  
Microbial Community Composition ◽  
Soil Nutrient ◽  
Nutrient Status ◽  
Agricultural Practice ◽  
Soil Nutrient Status ◽  
Soil Microbial ◽  
Lime Application ◽  
L1 And L2

Liming combined with an optimum quantity of inorganic fertilizer, as a soil amendment in intensive agriculture, is a viable agricultural practice in terms of improving soil nutrient status and productivity, as well as mitigating soil degradation. The chief benefits of this strategy are fundamentally dependent on soil microbial function. However, we have limited knowledge about lime’s effects on soil microbiomes and their functions, nor on its comprehensive influence on soil nutrient status and the productivity of sugarcane plantations. This study compares the impacts of lime application (1-year lime (L1), 2-year lime (L2), and no lime (CK) on microbial communities, their functions, soil nutrient status, and crop yield in a sugarcane cropping system. We employed Illumina sequencing and functional analysis (PICRUSt and FUNGuild) to decipher microbial communities and functions. In comparison with CK, lime application (L1 and L2) mitigated soil acidity, increased the level of base cations (Ca2+ and Mg2+), and improved soil nutrient status (especially through N and P) as well as soil microbial functions associated with nutrient cycling and that are beneficial to plants, thereby improving plant agronomic parameters and yield. Liming (L1 and L2) increased species richness and stimulated an abundance of Acidobacteria and Chloroflexi compared to CK. In comparison with CK, the two functional categories related to metabolism (amino acid and carbohydrate) increased in the L1 field, whereas cofactors and vitamin metabolites increased in the L2 field. Turning to fungi, compared to CK, liming enriched symbiotrophs (endophytes, ectomycorrhizae, and arbuscular mycorrhizae) and led to a reduction of saprotrophs (Zygomycota and wood saprotrophs) and pathotrophs. The observed benefits of liming were, in turn, ultimately reflected in improved sugarcane agronomic performance, such as increased stalk height and weight in the sugarcane planting system. However, the increase in the above-mentioned parameters was more prominent in the L2 field compared to the L1 field, suggesting consecutive liming could be a practical approach in terms of sustainable production of sugarcane.

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