Efficient Nutrient Management Research Articles

Nutrients recovery from livestock wastewater by batch and gas bubble-column studies with biochar, nano-composite material, and ammonium magnesium phosphate hydrate

The breeding of livestock raises substantial environmental concerns, especially the efficient management of nutrients and pollution. This research is designed to assess the potency of char and modified char in diluting nutrient concentrations in livestock wastewater. The characteristics of graphene oxide, struvite, and calcium-modified char were inspected, defining their efficacy in both batch and bed-column investigations of nutrient sorption. Various factors, including sorption capacity, time of contact, ion levels, a decrease in ion levels over time, and sorption kinetics, have been considered, along with their appropriateness for respective models. The first evaluation of the options concluded that 600 °C char was better since it exhibited higher removal efficiency. Modified char sorption data at 600 °C was used to adjust the models “PSOM, Langmuir”, and “Thomas”. The models were applied to both batch and bed-column experiments. The maximum phosphate sorption was 110.8 mg/g, 85.73 mg/g, and 82.46 mg/g for B-GO, B-S, and B-C modified chars respectively, in the batch experiments. The highest phosphate sorption in column experiments, at a flow rate of 400 μl/min, was 51.23 mg per 10 g of sorbent. This corresponds to a sorption rate of 5.123 mg/g. B-GO and B-S modified chars showed higher sorption capacities; this was observed in both the batch and bed-column studies. This displayed the capability of graphene oxide and struvite-modified chars for efficient ion and nutrient uptake, whether in single or multi-ion environments, making them a very good candidate for nutrient filtration in livestock wastewater treatment. Additionally, B-GO char enhanced the sorption of phosphate, resulting in augmented seed germination and seedling growth. These results reveal that B-GO char can be used as a possible substitute for chemical fertilizers.

Diatomite Geopolymer Carrying Potassium Poly(dihydroxymethyl)urea Phosphate for Efficient Nutrient Management

Diatomite Geopolymer Carrying Potassium Poly(dihydroxymethyl)urea Phosphate for Efficient Nutrient Management

Effect of Mineral Fertilizer on Yield, Quality and Nutrient Uptake of Black Sesame [Sesamum radiatum (L.)

A field study aimed to evolve efficient nutrient management for improving yield and quality of sesamum was conducted during pre-rabi season of 2022. The experiment was laid out in a factorial randomized block design replicated thrice with twelve treatments. Treatments consisting of two levels of nitrogen (25 and 50 kg/ha), two levels of phosphorus (12.5 and 25 kg/ha) and three levels of sulphur (0, 20 and 30 kg/ha). Seed and stover yield as well as total nutrient uptake were recorded significantly higher with the application of 50 kg/ha N, 25 kg/ha P and 30 kg/ha S. The application of 50 N and 30 kg S was recorded significantly higher oil content and oil yield over the rest of the nitrogen and sulphur levels. N content in seed (3.13%) and stover (1.226%) were found significantly influenced by 50 kg/ha N. Phosphorus @ 25 kg/ha was recorded significantly higher P content in seed (0.493 %) and stover (0.392%).S content in seed (0.325%) and stover (0.171%) were found significantly influenced by 50 kg/ha S. Significantly higher available nitrogen (281.22 kg/ha) was found under application of nitrogen @ 50 kg/ha. Significantly the higher residual phosphorus (28.81 kg/ha) was obtained with the application of 25 kg P/ha. Significantly the higher residual sulphur (7.63 mg/kg) was obtained with the application of 30 kg S/ha.

Evaluating the Soil Quality Indicators in Various Yield Zones of Pulses in Tamil Nadu, India

Background: In recent years, there is growing demand for pulses in Tamil Nadu and the government has implemented various schemes and programmes to promote cultivation. However, the evaluation and categorization of soils for pulse production is crucial in determining the suitability of land for pulse cultivation and offer improvement through the adoption of improved crop management practices. Methods: A systematic soil quality assessment survey was taken up during 2020-2022 in the major pulse growing blocks of Virudhunagar district viz., Sattur, Aruppukottai and Thiruchuli based on past ten years yield data and it was classified into three categories viz., low yielding ( less than 400 kg ha-1), medium (400 to 700 kg ha-1) and high yielding ( greater than 700 kg ha-1) categories. Three hundred samples were collected from these zones. Results: The positive effects of soil physical, chemical, and biological qualities on the yield of pulse crops were justified through the yield data of the high yielding zone which ranged from 769 to 989 kg ha-1 with an average pulse yield of 880 kg ha-1. This may be attributed to more favourable soil physical environment in terms of soil texture (sandy clay loam), higher mean percentage of water stable aggregates (51%) and a favourable pH of 7.52. These parameters coupled with lower bulk density (1.23 Mgm-3), optimum infiltration rate (1.76 cm hr-1) and maximum mean organic carbon status (1.38 mg kg-1) contributed to higher range of soil cation exchange capacity (28.7 to 47.2 cmol p+ kg-1). In addition, the presence of avilable nitrogen and phosphorus, potassium, sulphur and availability of mean micronutrient contents viz., DTPA iron and DTPA zinc resulted in better quality of these soils contributing to maximum pulse productivity in this zone. Soil respiration rate with mean respiration rate of 4.48 mg CO2 kg-1 d-1 in high yield category compared to that of 2.34 mg CO2 kg-1 d-1 in low yield category, which is well correlated with better soil organic matter content in the former than the latter group of soil. Therefore, this study formulates a clear understanding of the variations in soil quality parameters for adopting efficient nutrient management practices towards obtaining maximum productivity of pulse crops.

Shaping India's climate future: A perspective on harnessing carbon credits from agriculture

Human activities are responsible for emitting greenhouse gases (GHGs) that contribute to global warming and climate change. As the world's second-largest producer of staple food and the third-largest emitter of GHGs, India has been witnessing an increase in demand for food and energy, resulting in increased emissions. Thus, to achieve net carbon neutrality by 2070, India must focus urgently on climate change mitigation. Its agriculture sector has the potential to transition from being a net emitter to a net absorber of GHGs by adopting sustainable farming practices such as zero tillage, laser-assisted precision land leveling, direct seeding of rice, intercropping, biochar application, use of solar energy, and more efficient management of irrigation water, soil nutrients, livestock feed, and manure. To incentivize climate consciousness, a voluntary carbon credit trading system could be utilized in agriculture, supported by a measurement, monitoring, reporting, and verification platform. This system would also bring about social, environmental, and financial co-benefits for its stakeholders. Specifically, the agriculture sector could substantially reduce the country's annual emissions by 84% from 2019 to 2070. But to realize their potential, the carbon markets must overcome the limitations currently set by policy, economic, cultural, and biophysical factors.

Enhancing public health through modern agronomy: Sustainable and nutrient-rich practices

Introduction: This commentary explores modern agronomy concepts aimed at enhancing public health through sustainable and nutrient-rich agricultural practices. We explore various innovative approaches, includ­ing precision agriculture, sustainable farming, efficient nutrient management, crop diversity, biofortification, climate-resilient farming, vertical farming and urban agriculture, digital agriculture, and agroecology (see Figure 1). Our commentary delves into each of these modern agronomy prac­tices, unveiling their intricate web and profound implications for public health. We aim to demon­strate the potential of modern agronomy as a catalyst for improving public health and the quality of life for individuals and communities worldwide. These concepts collectively strive to elevate public health by improving food quality, enhancing nutrition, and safeguarding the well-being of individuals and communities. By harnessing these cutting-edge agronomic concepts, we aspire to transform agriculture into a powerful force for improving public health and enhancing overall quality of life. . . .

New Prospects for Improving Microspore Embryogenesis Induction in Highly Recalcitrant Winter Wheat Lines

Among various methods stimulating biological progress, double haploid (DH) technology, which utilizes the process of microspore embryogenesis (ME), is potentially the most effective. However, the process depends on complex interactions between many genetic, physiological and environmental variables, and in many cases, e.g., winter wheat, does not operate with the efficiency required for commercial use. Stress associated with low-temperature treatment, isolation and transfer to in vitro culture has been shown to disturb redox homeostasis and generate relatively high levels of reactive oxygen species (ROS), affecting microspore vitality. The aim of this study was to investigate whether controlled plant growth, specific tiller pre-treatment and culture conditions could improve the potential of microspores to cope with stress and effectively induce ME. To understand the mechanism of the stress response, hydrogen peroxide levels, total activity and the content of the most important low-molecular-weight antioxidants (glutathione and ascorbate), as well as the content of selected macro- (Mg, Ca, NA, K) and micronutrients (Mn, Zn, Fe, Cu, Mo) were determined. These analyses, combined with the cytological characteristics of the microspore suspensions, allowed us to demonstrate that an increased microspore vitality and stronger response to ME induction were associated with higher stress resistance based on more efficient ROS scavenging and nutrient management. It was shown that a modified procedure, combining a low temperature with mannitol and sodium selenate tiller pre-treatment, reduced oxidative stress and improved the effectiveness of ME in winter wheat lines.

Precisely controlling and predicting nitrogen release rate of urea–formaldehyde nanocomposite fertilizer for efficient nutrient management

“Control plus prediction” concept guides precise preparation and application of UF-based nanocomposite fertilizers.

Climate Smart Agriculture: The Role of Fertilizer Innovations and Efficient Plant Nutrient Management

Climate change has emerged as a significant threat to the global agro-economy, adversely affecting agricultural productivity, food security, and local and global agricultural development goals. To ensure sustainable crop productivity and meet future demands, it is essential to take prompt actions to address the current challenges of lower agricultural productivity due to climate change. Climate-smart agriculture (CSA) is a novel concept that offers a promising approach to tackle these challenges by introducing sustainable farming practices that minimize negative environmental impacts and enhance resilience to climate change. It involves realigning current agricultural practices and introducing smart techniques to reduce the adverse effects of agriculture that contribute to climate change and higher carbon footprints. The importance of climate-smart fertilizers in agricultural productivity cannot be overemphasized, as the soil is susceptible to structural changes and alterations in nutrient availability due to climatic impacts. Therefore, the implementation of proper nutrient management mechanisms and advanced fertilizer innovations has become a top priority in implementing the concepts of CSA. Consequently, there has been a greater focus on introducing more climate-adaptive and resilient plant nutrient delivery systems and technologies in recent times. For instance, nanofertilizer, bio-based controlled-release and slow-release fertilizers have provided a more sustainable and climate-friendly alternative to traditional synthetic fertilizers. Despite the innovations, challenges remain in implementing CSA practices and practices of climate-smart fertilizers at scale. This is largely attributed to the lack of proper knowledge and a streamlined policy framework on climate resilience in agriculture and fertilizers. This article seeks to review the role of fertilizer innovations and nutrient management in CSA, targeting the reduction of nutrient losses due to climate changes. It also examines the current status of climate-smart fertilizers with a particular emphasis on the current implementation challenges and future prospects in fertilizer production, leading to global food security by adapting to climatic changes. By highlighting specific examples of modern climate-smart agriculture and fertilizer management, this article aims to provide insights into the potential benefits and challenges of implementing CSA practices and encourage further research and development in this important field.
 Keywords: Climate-smart agriculture, Climate-smart fertilizers, Climate change, Nutrient Management, Innovations in fertilizers

Uji Paket Pupuk Terhadap Produksi Benih Jagung (Zea mays L.) Hibrida

Corn in the second position for the most important food after rice. Based on data from the ministry of agriculture in 2021, the corn have been increased in corn productivity in East Java province in the last 5 years. The Indonesian government trying to increase the productivity of corn plants in order to achieve the target in the following year. To increased productivity in the form of application of good cultivation technology which includes the use of high yielding varieties, efficient management of nutrients and water, and setting spacing. In addition to the right plant population, it needs to be balanced with fertilization. The purpose of this study was to determine the effect of fertilizer packages on the production of hybrid corn seeds. This research was conducted for 4 months from September to December 2022. The experimental design was followed a non-factorial randomized block design consisting 6 repetitions. The factor is fertilizer package consisting of P1 (Urea 450 kg/ha, Phonska 500 kg/ha, KCl 50 kg/ha), P2 (Urea 475.5 kg/ha, Phonska 525 kg/ha, KCl 52.5 kg /ha), P3 (Urea 495 kg/ha, Phonska 550 kg/ha, KCl 55 kg/ha). The research result the highest yield of seed weight per cob was in treatment P3, namely 78.27 grams, seed weight per plant 92.40 grams, 1000 grain weight 31.72 grams, production potential per plot 1417.19 grams, and seed production potential per hectare 7719.26 grams. Appropriate and balanced fertilizer package treatment is a solution to accelerate the growth and development of hybrid corn plants and improve the quality and quality of hybrid corn seeds

Effect of nutrient management on growth and yield of sesame (Sesamum indicum L.)

Field experiments were conducted on sesame in vertisols of Jabalpur, Madhya Pradesh during kharif seasons of 2009-10 and 2010-11 to determine its efficient nutrient management. Results revealed that application of 100% recommended dose of fertilizers (RDF) as 60 kg N + 40 kg P2O5 + 30 kg K2O/ha superimposed with sprayings of 2% Diammonium phosphate (DAP) twice at flowering and capsule formation stages was the best nutrient management for sesame resulting in high seed yields and monetary advantages, which was comparable to 100% RDF + sprayings of 2% urea twice at flowering and capsule formation stages as well as 100% RDF + spraying of 2% DAP once at flowering stage. This nutrient management proved to be more remunerative also.

Organics, clay, and nanomaterials for efficient nutrient management and crop production in sandy agroecosystem

Sandy soils are found all across the world, and in Asia, they cover over 86,000 km2. Sandy agroecosystem provides a significant soil resource for the livelihoods of millions of people. Low levels of organic matter, clay, high hydraulic conductivity, and limited exchange capacity of sandy soils require an external source of fertilizer nutrient material. The applied nutrients are primarily leached causing pollution of water bodies and low nutrient use efficiency. In order to properly manage nutrients for increasing the fertility and productivity of crops in sandy agroecosystems, this paper summarises the findings of various laboratory and crop experiments.

Modular Functionalization of Metal‐Organic Frameworks for Nitrogen Recovery from Fresh Urine**

AbstractNitrogen recovery from wastewater represents a sustainable route to recycle reactive nitrogen (Nr). It can reduce the demand of producing Nr from the energy‐extensive Haber‐Bosch process and lower the risk of causing eutrophication simultaneously. In this aspect, source‐separated fresh urine is an ideal source for nitrogen recovery given its ubiquity and high nitrogen contents. However, current techniques for nitrogen recovery from fresh urine require high energy input and are of low efficiencies because the recovery target, urea, is a challenge to separate. In this work, we developed a novel fresh urine nitrogen recovery treatment process based on modular functionalized metal–organic frameworks (MOFs). Specifically, we employed three distinct modification methods to MOF‐808 and developed robust functional materials for urea hydrolysis, ammonium adsorption, and ammonia monitoring. By integrating these functional materials into our newly developed nitrogen recovery treatment process, we achieved an average of 75 % total nitrogen reduction and 45 % nitrogen recovery with a 30‐minute treatment of synthetic fresh urine. The nitrogen recovery process developed in this work can serve as a sustainable and efficient nutrient management that is suitable for decentralized wastewater treatment. This work also provides a new perspective of implementing versatile advanced materials for water and wastewater treatment.

Modular Functionalization of Metal-Organic Frameworks for Nitrogen Recovery from Fresh Urine.

Nitrogen recovery from wastewater represents a sustainable route to recycle reactive nitrogen (Nr). It can reduce the demand of producing Nr from the energy-extensive Haber-Bosch process and lower the risk of causing eutrophication simultaneously. In this aspect, source-separated fresh urine is an ideal source for nitrogen recovery given its ubiquity and high nitrogen contents. However, current techniques for nitrogen recovery from fresh urine require high energy input and are of low efficiencies because the recovery target, urea, is a challenge to separate. In this work, we developed a novel fresh urine nitrogen recovery treatment process based on modular functionalized metal-organic frameworks (MOFs). Specifically, we employed three distinct modification methods to MOF-808 and developed robust functional materials for urea hydrolysis, ammonium adsorption, and ammonia monitoring. By integrating these functional materials into our newly developed nitrogen recovery treatment process, we achieved an average of 75 % total nitrogen reduction and 45 % nitrogen recovery with a 30-minute treatment of synthetic fresh urine. The nitrogen recovery process developed in this work can serve as a sustainable and efficient nutrient management that is suitable for decentralized wastewater treatment. This work also provides a new perspective of implementing versatile advanced materials for water and wastewater treatment.

Nutrient management technologies of millets for increasing productivity and nutritional security

Millets are important source of food and livelihood in arid and semi-arid ecologies and covers a significant area in these regions due to their strong abiotic and biotic stress tolerance, particularly their capacity to withstand dry conditions. Since, the grains of these crops have better nutritional qualities compared to other cereals, therefore, to ensure nutritional security in the vulnerable regions, millets can be good option to be included as staple food. The continuous application of high analysis chemical fertilizers without organic manures resulted in reduced water holding capacity, emergence of multi-nutrient deficiencies and consequently lower crop yields. Thus, for long-term ecological and economic sustainability in rainfed millet systems, there is a need to enhance soil organic carbon and nutrient buffering capacity of soil by integrated nutrient management through increasing the use of organic sources such as farmyard manures, biocompost, biofertilizers and legumes inclusion in cropping systems. Efficient nutrient management approaches are among key strategies to realize higher yields in rainfed regions. The systematic information is lacking on nutrient management in different millets, particularly on precision nutrient management. Use of cost effective and locally available organic nutrient sources and biofertilizers in combination with chemical fertilizers, not only enhances yield and soil fertility but also improves grain quality.

Volatile fatty acid production from primary and secondary sludges to support efficient nutrient management

Enhanced hydrolysis of sludges during fermentation is an important factor to achieve solubilization of complex carbon sources and increase the amount of soluble COD that microorganisms could use as food during biological nutrient removal processes. This research shows that a combination of mixing, bioaugmentation, and co-fermentation can be used to increase the hydrolysis of sludges and enhanced the production of volatile fatty acids (VFA). Mixing of primary sludge (PS) at 350 revolutions per minute (RPM) during fermentation increased the hydrolysis of the sludge and increased the soluble chemical oxygen demand (sCOD) by 72% compared to no mixing. Mixing also increased the production of VFA by 60% compared to no mixing conditions. PS hydrolysis was also evaluated using bioaugmentation with the bacteria Bacillus amyloliquefacients, a known producer of the biosurfactant surfactin. Results showed that bioaugmentation enhanced the hydrolysis of the PS by increasing the amount of soluble carbohydrates and soluble proteins present in the form of sCOD. Methanogenesis experiments performed with co-fermentation of decanted primary sludge (PS) and raw waste-activated sludge (WAS) at 75:25 and 50:50 ratios displayed a decreased in production of total biogas by 25.58% and 20.95% and a reduction on methane production by 20.00% and 28.76% respectively, compared to co-fermentation of raw sludges. Compared to fermentation of the sludges separately, co-fermentation of PS and WAS increased the production of VFA and it was determined that 50:50 was the optimum co-fermentation ratio for production of VFA while reducing the reintroduction of nutrients produced during the fermentation process to BNR processes.

Effects of land use types on the depth distribution of selected soil properties in two contrasting agro-climatic zones

The depth distribution of soil properties are governed by several interacting factors including land use types (LUT) and agro-climate (AgC) factors. Yet, there is little information on the effects of LUT, AgC and their combination on soil properties along depth, which this study aimed to investigate. We collected a total of 36 composite soil samples using the manual percussion of a steel core tube layer by layer vertically up to 30 cm in sites representing both highland and lowlands, and analyzed for selected soil properties. A significant main effects of LUT on the depth distribution of bulk density (BD), Ca, Na, K and Cu, and AgC on soil texture, pH, EC, Ca, Na, K, P, Mn, Fe and Cu were noted. The two-way ANOVA analysis also revealed the significant effects of both LUT and AgC on the depth distribution of BD, Na, K, Cu and EC, reflecting their influences on the paths associated to bio-geo-recycling processes. Compared to crop and forestlands, the average SOC and Fe were lower while EC, CEC, Ca, Na, K, P, Mn and Zn were higher in homegarden located in highland than lowland, possibly the acid nature of the highland soil may make the extractable cations available. SOC was not significantly influenced by AgC, LUT and their interaction effect. Based on the Elemental Enrichment Ratio (EER), the SOC was concentrated in the upper surface soil in forest and cropland located both in highland (1.79, 1.33) and lowland (1.80, 1.57), respectively. The reverse propagation pattern SOC depth distribution in soils under homegarden with EER of 0.7 (highland) ad 0.8 (lowland) showed that implementing such system can accelerate carbon sinking and safely store it in subsoil. Also, diversified species composition associated with respective root architectures in the homegarden system, make it an efficient soil nutrient management, which should be widely promoted.

Soil nutrition management may preserve non-detrimental weed communities in rainfed winter wheat (T. aestivum)

Overuse of fertilizers has been associated with the selection of competitive and dominant weed communities and biodiversity loss. Considering that crop nutrient management is going through a continuous revisitation process to improve nutrient use efficiency and energy savings, we addressed the consequences of different nutritional levels (low, optimal, and surplus) on weed community composition and wheat growth, yield, and kernel quality. Weed density and biomass were evaluated on sampling areas at the heading stage, and the data obtained were subjected to a cluster analysis for the identification of different weed communities throughout the experimental plots. At harvest, plant growth, yield and quality traits of wheat and wheat kernels were evaluated and correlated with the presence of different weed communities. Out of the four weed communities identified under optimal and low nutrition, two communities did not significantly reduce wheat yield. Under surplus nutrition only one weed community was identified, which resulted to be detrimental for wheat production in terms of yield quantity and quality. The non-detrimental communities were characterized by a high presence of corn chamomile (Anthemis arvensis L.), birdeye speedwell (Veronica persica Poir.), and common chickweed (Stellaria media (L.) Vill). On the contrary, the detrimental communities, were characterized by a high density and aboveground biomass of burr medic (Medicago polymorpha L.). Finally, under surplus nutrition, species richness declined, and the density and aboveground biomass of annual ryegrass (Lolium rigidum Gaud.) increased compared to optimal and low nutrition. Our results showed that soil fertilization plays a crucial role in differentiating detrimental vs. non-detrimental weed communities, with excess fertilization reducing species richness and selecting for competitive and specialized weed species. Overall, an efficient management of soil nutrients may promote non-detrimental weed communities while reducing weed management intensity and thereby improving biodiversity and sustainability. Assessing the efficiency of soil fertilization management and understanding how different fertilization rates and forms may affect weed communities is crucial to advancing sustainable weed management.

Diagnóstico nutricional de mangueiras na pós-colheita em antecipação ao pré-florescimento evita estresse nutricional

ABSTRACT The São Francisco Valley region of Brazil is a leading exporter of mango fruits. Previous nutritional diagnosis can identify stresses, provide adjustments for nutritional limitations, and promote more efficient fertilization and nutrient management. This study aimed to compare the nutritional diagnosis of mango trees in the post-harvest and pre-flowering phases and to correlate them with productivity. Norms and indices of the Integrated System of Diagnosis and Recommendation (DRIS), as well as the Nutritional Balance Index and the Potential of Response to Fertilization were generated for each phenological phase of the mango trees. Optimal concentrations and ranges of nutrients were established, classified as deficient, balanced, or excessive, and subsequently compared to each other and to values recommended in the literature. The indices were correlated with the productivity of the orchards in each phenological phase of the mango trees. When comparing the DRIS norms of post-harvest and pre-flowering phenological phases, 55% of the averages differed. The sufficiency ranges of the post-harvest and pre-flowering phases were generally different from those referenced in the literature. Nutritional diagnoses for P, K, Ca, Mg, S, Zn, and Cl altered between phenological phases. The nutritional diagnosis performed in the post-harvest phase showed that nutritional imbalance affected productivity.

Primary plant nutrients modulate the reactive oxygen species metabolism and mitigate the impact of cold stress in overseeded perennial ryegrass.

Overseeded perennial ryegrass (Lolium perenne L.) turf on dormant bermudagrass (Cynodon dactylon Pers. L) in transitional climatic zones (TCZ) experience a severe reduction in its growth due to cold stress. Primary plant nutrients play an important role in the cold stress tolerance of plants. To better understand the cold stress tolerance of overseeded perennial ryegrass under TCZ, a three-factor and five-level central composite rotatable design (CCRD) with a regression model was used to study the interactive effects of nitrogen (N), phosphorus (P), and potassium (K) fertilization on lipid peroxidation, electrolyte leakage, reactive oxygen species (ROS) production, and their detoxification by the photosynthetic pigments, enzymatic and non-enzymatic antioxidants. The study demonstrated substantial effects of N, P, and K fertilization on ROS production and their detoxification through enzymatic and non-enzymatic pathways in overseeded perennial ryegrass under cold stress. Our results demonstrated that the cold stress significantly enhanced malondialdehyde, electrolyte leakage, and hydrogen peroxide contents, while simultaneously decreasing ROS-scavenging enzymes, antioxidants, and photosynthetic pigments in overseeded perennial ryegrass. However, N, P, and K application mitigated cold stress-provoked adversities by enhancing soluble protein, superoxide dismutase, peroxide dismutase, catalase, and proline contents as compared to the control conditions. Moreover, N, P, and, K application enhanced chlorophyll a, chlorophyll b, total chlorophyll, and carotenoids in overseeded perennial ryegrass under cold stress as compared to the control treatments. Collectively, this 2-years study indicated that N, P, and K fertilization mitigated cold stress by activating enzymatic and non-enzymatic antioxidants defense systems, thereby concluding that efficient nutrient management is the key to enhanced cold stress tolerance of overseeded perennial ryegrass in a transitional climate. These findings revealed that turfgrass management will not only rely on breeding new varieties but also on the development of nutrient management strategies for coping cold stress.