Asian Journal of Soil Science and Plant Nutrition
Not a member yet
620 research outputs found
Sort by
Soil Moisture Distribution Pattern under Drip Irrigation in Sandy Loam Soil Using Gravimetric Method
No full textSoil moisture distribution pattern plays an important role in finding out the effectiveness of drip irrigation as the irrigation is scheduled based on the crop water requirement (CWR) and restricted to the root zone of the crop. The objective of this study was to characterize the soil moisture distribution pattern in the sandy loam soil of chilli field. The effective root zone of chilli crop was 18cm. The drip irrigation system with emitter discharge of 4lph was installed in the field. The soil moisture content at the depth of 10cm, 20cm, and 30cm respectively from the horizontal distance of 10cm, 20cm, and 30cm from the emitter were recorded after 2hr and 24hr of irrigation. Soil moisture content was measured by the gravimetric method. The soil moisture distribution pattern was assessed by the SURFER-16 Software from the recorded soil moisture content. The result shows that, in the sandy loam, the water movement was faster and there was more vertical distribution of the soil moisture than lateral distribution
Effect of Total Electrolyte Concentration and Sodium Adsorption Ratio on Swelling Percentage of Salt Affected Soils in Purna Valley of Maharashtra, India
No full textThe present investigation was carried out in the Purna valley of Vidarbha region of Maharashtra to study the effect of total electrolyte concentration and sodium adsorptionratio on swelling percentage of salt affected soils in Purna valley of Maharashtra. The sampling was done in the month of October, 2013. The soil samples were taken from two sites; at the depth of 0-20 cm (surface soil) and 20- 40 cm (sub-surface soil) respectively. For equilibration of soil samples, the synthetic waters were prepared with 4 levels of total electrolyte concentrations (TEC) i.e.10, 20,40,80 meL-1 with three levels of SAR viz., 5, 10 and 15 mmol1/2L-1/2. The increase in swelling percentage was due to the increase in SAR, ESP, levels and also decreases with increasing total electrolyte concentration. The swelling percentage was found to decrease by 27.74 % with increase in TEC levels from 10 to 80meL-1 similarly the swelling percentage was found to increase about 8.94 to 7.81% respectively with increase in SAR levels from 5 to 15 of the equilibrating solution
A Review on Precision Agriculture Navigating the Future of Farming with AI and IoT
No full textPrecision agriculture (PA) integrates advanced technologies such as Artificial Intelligence (AI) and the Internet of Things (IoT) to enhance the efficiency, productivity, and sustainability of agricultural practices. In India, the adoption of these technologies is emerging as a transformative force aimed at overcoming longstanding challenges such as resource depletion, yield variability, and environmental degradation. This review paper discusses the evolution and current state of PA in India, emphasizing the role of AI and IoT in revolutionizing farming practices. AI enhances decision-making through predictive analytics and machine learning models, enabling precise crop and soil monitoring, disease detection, and yield prediction. IoT complements these capabilities by providing essential infrastructure for data collection and real-time monitoring, facilitating smarter resource management and operational efficiency. The paper identifies key technical, economic, and social challenges hindering the widespread adoption of PA technologies in India, including high initial costs, scalability issues, data privacy concerns, and the impact on traditional farming employment. Solutions such as government subsidies, tailored technology adaptation, and comprehensive farmer training programs are discussed as means to address these challenges. The paper concludes by highlighting the importance of multi-stakeholder collaboration in fostering an environment conducive to the growth of precision agriculture in India. Through a combination of policy support, technological innovation, and strategic partnerships, India can fully leverage PA to meet its agricultural goals of sustainability and high productivity
Response of Fertility Levels and Biofertilizers on Growth and Yield Attributes Quality of Chickpea (Cicer arietinum L.) Crop
No full textThe experiment was conducted on agricultural research form with split plot design in four main treatments: F1 (control), F2 (100% recommended dose of fertilizer-RDF), F3 (75% RDF), and F4 (50% RDF), and three sub-plot treatments: B1 (Rhizobium + PSB), B2 (Rhizobium + PGPR), and B3 (Rhizobium + PSB + PGPR), each replicated three times. Growth parameters such as plant height and dry matter accumulation were significantly influenced by both fertility levels and biofertilizers. Chickpea plants showed higher growth parameter values and root parameter when treated with 100% RDF (F2). Similarly, biofertilizer treatments, particularly Rhizobium + PSB + PGPR (B3), followed by 75% RDF (F3). Root dry weight per plant was significantly affected by both fertility levels and biofertilizers across all growth stages except at 30 days after sowing (DAS). The number of pods per plant and the number of seeds per pod were significantly influenced by both fertility levels and biofertilizers at all growth stages except at 30 DAS and in the case of 100 seed weight. Chickpea plants treated with 100% RDF (F2) exhibited higher values for both the number of pods per plant and the number of seeds per pod
Yield Attributes and Yield of Maize as Influenced by Different Paddy Straw Management Options and Nitrogen Levels in Rice-maize Cropping Systems
No full textA field experiment was conducted during 2021-22 and 2022-23 at Regional Agricultural Research Station, Arepally, Warangal district. It is situated in the Central Telangana Zone. A total of 18 treatments replicated thrice in factorial RBD design. The study is conducted to know the yield attributes and yield of maize as influenced by different paddy straw management options and Nitrogen levels in rice-maize cropping systems. The results of the experiment concluded that highest grain yield, straw yield, cob length (cm), cob girth (cm), number of cobs per plant, number of rows per kernal, 100 seed weight (gms) was obtained in incorporation and least was obtained in cutting and removal. With the different nitrogen levels highest was obtained in T6 130% RDN (20% at basal, 42% 15 days after sowing, 42% knee high stage (30 DAS) and 26 % tasselling stage (60 DAS) and the least was obtained in T1 100 % RDN (33.3 % at basal, 33.3% knee high stage (30 DAS) and 33.3% tasselling stage (60 DAS). There is no significant effect of crop residue management and N levels on yield attributes of maize and there is no significant interaction between the two factors
Bioinoculation Effect of Frankia sp. and Microbial Bioagents on Growth and Development of Elaeagnus latifolia L. seedlings: An Endangered Plant Species of North East India
No full textAims: Analyses were done on the role of rhizospheric symbiotic Arbuscular Mycorrhizal (AM) fungus, Non-AM fungus and a bacterium in growth and development of E. latifolia L. seedlings.
Study Design and Methodology: The seedlings were inoculated with recognized AM fungal strain (Glomus mosseae, Gm 1), non-AM fungus (Trichoderma harzianum, Th-13) alone and nitrogen fixing bacteria Frankia sp. in combined form (both, dual and triple/ tripartite consortium) and analysed for their effect on growth parameters i.e. increase in length, diameter, circumference, Sturdiness quotient (Sq), Biovolume index (Bi) and Plastochron interval index (Pi) of the target plant species.
Results: Qualitative analysis have revealed that the consortium treatment containing Glomus mosseae and Frankia sp. (FS-03) resulted in more increase in the length (7.0 ±0.25 cm), diameter (1.3 ±0.25 cm), circumference while the highest biovolume index was observed in the consortium treatment of Frankia sp. along with Glomus mosseae, Trichoderma harzianum viz. Fs-04 (280.96 ± 20.0) and sturdiness quotient of 0.25 including reduced phyto-mortality and initiating rapid phyllogenesis in inoculated seedlings as compared to control seedlings. In contrast to control seedlings, which are covered in depth in this work, a similar pattern with negligible variance in all analyzed parameters as indicated above were also seen in other alone and combined treatments.
Conclusion: As a result, it was shown that both AM alone and consortium inoculations with Frankia sp. increased this plant species\u27 adaptation and resilience
Evaluation of Nitrogen Uptake, Growth, and Yield of Rice Affected by Green Manure and Chemical Nitrogen Fertilizer
No full textTo investigate the combined effect of green manures (GMs) and chemical nitrogen (N) fertilizer on N uptake, growth, and yield of rice, a pot experiment was conducted at the Department of Agronomy, Yezin Agricultural University (YAU). The experiment was conducted from December to June (the summer season) of 2023. The study used a split-plot design with three replications. Chemical N fertilizer was assigned as the main plot factor and different levels of N0%, N25%, N50%, N75%, and N100% were applied based on the N recommended rate (102 kg ha-1) (1.55 g pot-1) of the Sinn-thu-kha rice variety. GM crops were the subplot factor, including no GM (G0), rice bean (GRB), sunn hemp (GSH), and dahincha (GDC). According to the results, N75 and N100 produced the higher dry matter, N uptake, yield, and yield components of rice. The highest growth characters, N uptake, and yield were found in N100 for N levels, GSH for GM levels, and N100GSH as the combined effect. However, similar values were found in the treatment N75GSH. Statistically, the GSH + chemical N treatment produced higher N uptake and yields than those of GRB or GDC + chemical N treatment. When chemical N fertilizers were applied without the use of GMs, the rice yields were lower in comparison to the treatments GMs + N25 or N50 or N75 or N100. In conclusion, combining GSH with either 75% or 100% chemical N resulted in optimal performance for soil nutrient content, growth, N uptake, and rice yield. Additionally, it was observed that the use of chemical N fertilizers was reduced by 25%, which can help mitigate environmental pollution and improve soil health and rice production in the long run
Assessing the Efficacy of Different Herbicides for Controlling Weeds in Rabi Onion (Allium cepa L) at Saharsa District of Bihar, India
No full textAn effort was undertaken to determine the best weed management techniques for controlling weeds in onions that are both practically and financially viable for farmers. Due to weed competition, onions, which are shallow-rooted, slow-growing crops, can experience significant output loss. Their non-branching nature and short, upright leaves make them less competitive with weeds. Additionally, they allow for multiple flushes of weeds because to their lengthy growing season, frequent irrigation, and fertilizer application. During the Rabi season in 2017 and 2018, the experiment was carried out in the farmers\u27 fields of Saharsa district, Bihar, using the "On Farm Trial" mode for two years. Technology option-III, which yielded the maximum net return of up to Rs 275420 q/ha, was the best treatment in terms of net return. The benefit-to-cost ratio differed greatly between the therapies. Technology option III had the highest benefit cost ratio (2.92), which was comparable to Technology option II (2.66) statistically
Evaluation of INM Practices on Fruit Yield and Quality of Established Mango Orchard
No full textThe current study was conducted by Krishi Vigyan Kendra, Saharsa, under the supervision of Bihar Agricultural University, Sabour, Bhagalpur, Bihar, and ICAR-ATARI (Zone-IV) in fifteen farmers\u27 fields in Bihar\u27s Saharsa district between 2020-21 and 2021-22. Each farmer\u27s field was handled as a single replication. The experimental treatments were distributed in a Randomized Block Design with 15 replications (=15 farmers) and three treatments containing recommended agronomic techniques. According to two years\u27 worth of pooled data, treatment T3 (75% RDF + 20 kg Vermicompost + 250 ml Azotobacter + 250 ml PSB) produced the highest fruit length (9.35 cm), fruit width (6.52 cm), fruit volume (213.21 cm3), and fruit weight (225.35 g), as well as yield parameters, such as the highest number of fruits per plant (365.33), fruit yield per plant (91.33 kg), and TSS (18.10°Brix). in this respect, T2 (75% RDF + 20 kg Vermicompost + 250 ml Azotobacter) came to the next. Considering the effect of agronomic practices on some chemical properties of soil under trees, T3 (75% RDF + 20 kg Vermicompost + 250 ml Azotobacter + 250 ml PSB per tree) had the highest recorded values of pH (7.4), EC (0.51 dSm-1), Organic Carbon (0.52%), available N (305.21 kg/ha), available P (32.56 kg/ha), and available K (201.33 kg/ha). Also, the maximum soil microbial count of 6.5 × 109 and 7.8 × 109, was recorded. From an economical view point, treatment T3 resulted in the maximum benefit cost ratio (3.01) and the highest net realization (₹.497800) based on fruit yield per hectare
Impact of Plant Growth Regulators on Growth, Yield and Fruit Quality of Strawberry (Fragaria × ananassa Duch.) Cultivar Winter Dawn under Polyhouse (Natural Ventilated Polyhouse)
No full textThe present experiment was laid out in randomized block design, and the study consists of ten treatments with three replications including control. From the present investigation, it was concluded that the treatment T10 (NAA-125ppm) was found to be best in the term of vegetative parameter, flowering, fruiting, yield and quality of strawberry. The present experiment concluded that, for better vegetative growth, yield and quality of strawberry fruits. It is concluded that the treatment T10 (NAA-125ppm) was found best in terms of vegetative growth and yield characters of strawberry. The economics of the treatment T10 was found best in terms of B:C ratio 3.25 of strawberry