Jul 2026· Asian Journal of Soil Science and Plant Nutrition· Vol 12, pp. 391-402· 0 citations
Abstract
Papaya (Carica papaya L.) is a fast-growing, nutrient-demanding fruit crop with continuous vegetative and reproductive development. The present study evaluated the effects of organic manures and bio-inoculants, applied with different levels of inorganic fertilisers, on the growth, flowering, yield attributes, and fruit yield of papaya cv. CO 7 under the humid tropical conditions of Kerala. The field experiment was conducted in a randomised block design comprising 12 treatments, three replications, and four plants per treatment. Treatments included combinations of the recommended dose of fertilisers (RDF; 240:240:480 g NPK plant⁻¹ year⁻¹), farmyard manure, vermicompost, poultry manure, biovermi, bone meal, wood ash, Trichoderma viride, and Pseudomonas fluorescens. Biometric, floral, and fruit characteristics were recorded, and the data were analysed using MSTAT.C, with treatment means compared by DMRT. The treatment comprising RDF + vermicompost (13 kg plant⁻¹) + T. viride (5 g plant⁻¹) + P. fluorescens (10 g plant⁻¹) recorded the greatest plant height, collar girth, fruit length, fruit girth, fruit weight, fruit volume, seed number, and fruit yield. This treatment produced 42.59 kg fruit plant⁻¹. RDF + poultry manure (10 kg plant⁻¹) + the two bio-inoculants recorded the highest number of fruits per plant and a yield of 40.93 kg plant⁻¹. Fully organic treatments yielded less than the integrated nutrient treatments. Under the conditions of this study, combining RDF with vermicompost and bio-inoculants was the most effective nutrient-management treatment for papaya cv. CO 7.
The declining productivity of rice and deterioration of soil health associated with conventional rice cultivation necessitate the adoption of sustainable nutrient management strategies. Field experiments were conducted during the Kharif seasons of 2021–22 and 2022–23 at the Students’ Instructional Farm, Chandra Shekhar Azad University of Agriculture and Technology, Kanpur, to evaluate the effects of organic manure, inorganic fertilisers and bio-inoculants on the growth of rice (Oryza sativa L.). The experiment comprised 18 treatment combinations arranged in a randomised block design with 3 replications, involving different combinations of inorganic fertilisers, organic manures and biofertilisers. The results indicated that among the various growth parameters, the maximum plant height (99.15 cm and 99.85 cm), number of tillers (409.4 m-2 and 412.25 m-2), dry matter accumulation (760.48 g m-2 and 764.34 g m-2) and leaf area index (4.32 and 4.37) were recorded during 2021–22 and 2022–23, respectively, under treatment T17 (100 % NPK + 5 t ha-1 FYM + Azolla 300 kg ha-1 + S 30 kg ha-1 + Zn 5 kg ha-1). These findings highlight the synergistic effects of integrating organic and inorganic nutrient sources along with bio-inoculants. This integrated approach enhances crop performance, improves soil sustainability and ensures better economic returns, making it a promising strategy for modern rice farming systems.
Yadav Abhishek Singh, S. Sanjeev, S. Krashankant et al.· Plant Science Today· 0 citations
Sustainable management of soil moisture, nutrient availability and microbial activity is important for maintaining the growth, productivity and fruit quality of Daisy mandarin. Mulching and biological inputs such as Jeevamrit and Panchgavya may improve the soil microenvironment; however, their combined effects on Daisy mandarin growth, yield, fruit quality and soil characteristics require evaluation. The present study was carried out at the College of Horticulture and Forestry, Neri, Hamirpur (H.P.), during 2024-2025. The experiment was laid out in a factorial randomised block design with three replications. The study comprised twelve treatments involving different types of mulching materials, viz. M0: no mulch, M1: grass mulch, M2: black polythene mulch and M3: mulch mat, and three biostimulant treatments: B0: no biostimulants, B1: Jeevamrit @ 10% and B2: Panchgavya @ 5%, either alone or in combination. The results showed that vegetative growth, flowering, yield, fruit quality, soil nutrient status and microbial populations were significantly enhanced under M1B1 (grass mulch + Jeevamrit @ 10%). The maximum increase in plant height (64.10 cm), maximum number of fruits (62.00/plant) and highest yield (12.52 kg/plant) were observed under M1B1 (grass mulch + Jeevamrit @ 10%). Biochemical parameters such as TSS, total sugars and ascorbic acid content were highest under M1B1 (grass mulch + Jeevamrit @ 10%). The highest soil organic carbon (1.52%), available soil nitrogen (274.90 kg/ha), available soil potassium (243.03 kg/ha) and total microbial count (1.64× 108 cfu g-1) were recorded under M1B1 (grass mulch + Jeevamrit @ 10%). Therefore, M1B1 (grass mulch + Jeevamrit @ 10%) can be regarded as the best treatment in the present study.
S. Banyal, Shivani, Shalini Thakur et al.· International Journal of Env...· 0 citations
Canola (Brassica napus L.) is one of the key oilseed crops worldwide, serving as a vital source of edible oil, livestock feed, and biofuel. In Afghanistan, canola production faces significant challenges due to declining soil fertility and over-reliance on expensive chemical fertilizers. Poultry manure, as a low cost and nutrient-rich organic fertilizer, offers a sustainable alternative for improving crop productivity. However, limited scientific information is available regarding the optimal poultry manure application rate for canola under Kabul’s agro-climatic conditions. Therefore, an experimental research was conducted at Kabul University Agricultural Research Farm during the 2025 cropping season using Randomized Complete Block Design (RCBD) with three replications and four treatments. The study aimed to evaluate Effects of Different Levels of Poultry manure on Growth, Yield, and Yield Components of Canola. The findings of the study revealed that the application of poultry manure significantly influenced on growth, yield and yield components of canola. Overall, the application of 8-ton poultry manure ha-1 had better performance than control. The maximum plant height (117.45 cm), number of branches plant-1 (5.65), number of leaves plant-1 (39.77), number of siliques plant-1 (184.61), silique length (6.01 cm), number of seeds silique-1 (18.39), thousand seed weight (3.40 g), seed yield (2.74 t ha⁻¹), biological yield (9.87 t ha⁻¹), and harvest index (27.76%) were all recorded in T4. The lowest values for all parameters were observed in the control treatment (T1). It is recommended that use 8 tons of poultry manure ha-1 in order to realize optimal seed yield and biological yield of the crop.
Murtaza Nabizada, A. Afghani· International Journal of Cur...· 0 citations
Malaysia’s heavy reliance on imported soy-based feed ingredients poses significant
challenges to both food security and sustainability in its livestock sector. As an
underutilised legume with high protein content and strong ecological adaptability,
Canavalia ensiformis (L.) DC. (jackbean) offers a promising local alternative. This study
investigated the combined effects of different growing media (clay, cocopeat, sandy soil,
and topsoil) and organic amendments (control, composted chicken manure, green manure,
and biochar) on the growth performance and yield of jackbean. The experiment was
conducted using a randomised complete block design (RCBD) with five replications, and
plants were harvested after 12 weeks. The data on plant height, number of leaves, number
of branches, pod length, pod number, flower production, chlorophyll content, shoot
biomass, and root biomass were analysed using two-way ANOVA in RStudio. The results
demonstrated that sandy soil amended with green manure (GM) consistently produced the
highest values for plant height (185.61 cm), number of leaves (84.90), number of branches
(33.63) and pod length (17.00 cm). GM in topsoil had higher chlorophyll content (33.08),
while it had the highest shoot dry weight (56.18 g) and root dry weight (6.48 g) in
cocopeat. GM showed the most robust and consistent enhancement across all media types,
indicating its superior nutrient supply and positive effects on rhizosphere microbial
activity. In contrast, biochar amended performed poorly, particularly when applied in
sandy and topsoil, likely due to poor drainage and nutrient immobilisation. These findings
revealed the importance of selecting optimal combinations of organic inputs and soil
media to maximise jackbean productivity and highlight their potential as a sustainable
crop for protein-rich feed production, supporting the efforts to reduce Malaysia's
dependency on soybean imports and enhance agroecological resilience. This study aligns
with the Sustainable Development Goals (SDGs), particularly SDG 2 (Zero Hunger) and
SDG 12 (Responsible Consumption and Production) by promoting sustainable crop
management and enhancing food security.
S. S. Sahmat, Z. Yusop, M. Z. Kamil et al.· Food Research· 0 citations
The increasing demand for livestock-derived products and the growing emphasis on sustainable agricultural production necessitate the development of efficient organic nutrient management strategies for fodder-based cropping systems.
A two-year field experiment was conducted at the ICAR–National Dairy Research Institute, Karnal, located in the Trans-Gangetic Plains of India, to evaluate the integrated effects of farmyard manure (FYM), plant biostimulants (
Panchagavya
and seaweed extract), and bioinoculants on the growth, yield, chlorophyll content, and energy fractions of fodder maize (
Zea mays
L.) and berseem (
Trifolium alexandrinum
L.). The experiment was laid out in a randomized complete block design with six treatments and six replications.
Among the treatments, T
3
(PGPR + 75% recommended dose of nitrogen (RDN) through FYM + three foliar sprays of
Panchagavya
) consistently produced the highest growth, fodder yield, chlorophyll concentration, and energy fractions in both crops during the two experimental years. In fodder maize, T
3
recorded the maximum green fodder yield (32.4–34.7 t ha
-
¹) and dry fodder yield (7.4–8.1 t ha
-
¹). Similarly, in berseem, T
3
produced the highest total green fodder yield (57.0–58.5 t ha
-
¹) and dry fodder yield (7.6–8.1 t ha
-
¹), over the absolute control. Total chlorophyll content reached 2.39–2.43 mg g
-
¹ in maize and 2.29–2.32 mg g
-
¹ in berseem under T
3
, accompanied by significant improvements in digestible energy, metabolizable energy, digestible feed energy, and net energy. The PGPR + 75% RDN through FYM + seaweed extract treatment (T
4
) also produced significant improvements over the absolute control and ranked among the best-performing treatments across most measured parameters, demonstrating the potential of seaweed extract as an effective biostimulant in integrated nutrient management.
Overall, the findings demonstrate that integrating PGPR with 75% RDN through FYM and
Panchagavya
was the most effective strategy for enhancing fodder productivity, nutritive quality, and energy value, while the PGPR + 75% RDN through FYM + seaweed extract treatment also provided substantial benefits and represents a promising alternative biostimulant-based approach for sustainable maize–berseem fodder production systems.
Vrushabh Vijay Fiskey, Kamsali Sukeswara Achari, Shreyas Bagrecha et al.· Frontiers in Agronomy· 0 citations
Okra is an economically important vegetable crop with high nutritional value, widely cultivated in tropical and subtropical regions globally. An experiment was conducted to assess the effect of eight treatments on the growth, yield, and economic performance of okra (Abelmoschus esculentus (L.) Moench) under irrigated conditions in the Kilinochchi District, Sri Lanka, during September to November 2023. The experiment was conducted in a Randomized Complete Block Design (RCBD) with three replicates. Eight treatments (T1–T8) consisting of different organic manure applications, and the Department of Agriculture (DOA)-recommended chemical fertilizers were applied, including a control treatment without organic manure. Haritha okra was used as the test variety. Growth parameters including plant height, dry weight, and number of leaves, and yield parameters including number of pods per plant, fresh pod weight, and shelf life were evaluated. Poultry manure applied at 460 g plant⁻¹ (T2) recorded the highest plant height (31.4 cm), number of leaves (8.0 leaves plant⁻¹), dry pod weight (13.3 g plant⁻¹), fresh pod weight (130 g plant⁻¹), number of pods per plant (8 pods), and shelf life (5.7 days). Compared with the control treatment (T1), poultry manure increased plant height by 35.3%, fresh pod weight by 160%, and shelf life by 32.6%. No significant difference (p ≤ 0.05) was observed between T2 and T5 (cattle manure: poultry manure, 230 g: 230 g plant⁻¹). The highest benefit-cost ratio was recorded in T2 and T5. It can be concluded that poultry manure at 460 g plant⁻¹ was the most effective treatment for improving the growth, yield, and economic performance of okra under irrigated conditions.
N. Saheedha, K. Aafir· Knowex food and agriculture· 0 citations
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