Welcome to the Current Issues page of the American Journal of International Crop Science Digest!
Here, you will find the latest published articles that represent the forefront of research in international crop science. These papers showcase significant advancements, discoveries, and insights in the field and have been rigorously reviewed by experts.
Featured Articles in the Latest Issue
- Volume 2(Issue 2) JULY – DECEMBER 2025
Research Articles
Planting Density and Fertilizer Regimes Optimization Towards Yield and Lodging Resistance in Hybrid Rice Cultivation
Vol.2(2); Pages:1-8. Published on September 2025
Abstract
During the hybrid rice systems, planting density/nutrient management is very crucial in the context of yield performance and lodging resistance. The objective of this research was to test how planting geometry and fertilizer regime interact to enhance grain yield, plant height and stem strength of a hybrid of rice (Oryza sativa L.) growing in subtropical field in the two agro-ecological zone in China. Nine treatments (three planting densities (20* 20 cm, 25* 25 cm and 30* 30 cm) and three levels of nitrogen fertilizing (90, 120, and 150 kg/ha)) were tested. Findings suggests that a combination of moderate planting intensity of 25×25 cm and a 120 kg N/ha rate yielded the highest 8.9t/ha crop and also reduced significantly (p < 0.05) the lodging index by 23% when compared to conventional farming. These results imply that planting density optimization and optimization of nutrient input are key to the attainment of increased production and enhanced lodging resistance in hybrid rice production. The work gives a workable guideline on how to make the hybrid rice systems more stable and productive by applying better agronomy in subtropical environments.
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Assessment of Salt-Tolerant Quinoa Lines to determine the Yield and Nutrient Composition in Coastal Salty Soil
Vol.2(2); Pages:9-16. Published on October 2025
Abstract
Quinoa ( Chenopodium quinoa Willd.) is emerging as one of the salt tolerant crops which can be cultivated in the marginal land especially that which is being affected by saline water. Nevertheless, genotype-specific saline reaction is poorly studied. The objective of the work was to compare the agronomic profile and nutrient content of six quinoa genotypes cultivated in naturally saline soils of the Tunisian coast (ECe = 9.2 dS/m) in the north of Tunisia. There was a much difference among the genotypes in height, grain yield and accumulation of Na+. Q5 genotype performed the best (2.87 t/ha) with regard to grain yield and showed least uptake of Na 15 because it featured salt exclusion processes. Q3 on the other hand had excellent nutritional content containing protein of 15.6 expressed as percent and iron 8.4 mg/100g, which makes it a good candidate in nutritional importance in salt affected areas. With regard to salty condition, the study brings out the fact that Q5 and Q3 are potential dual-purpose genotypes, which have shown high productivity and nutritional value. The results indicate the possibility of genetic test of salt resistant quinoa genotypes, which will help produce sustainable crop production in the salt areas.
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Conservation Tillage and Residue Retention Effects on Rainfed Sorghum System Soil Soil Moisture and Production Stability
Vol.2(2); Pages:17-24. Published on October 2025
Abstract
The conservation tillage will be very restrictive in keeping the soil healthy and improving the stability of yield, especially in rain fed dry lands. This experiment has determined how minimum tillage and crop residue retention affects the most important variables in the rainfed sorghum (Sorghum bicolor L.) in southern Zimbabwe; these variables are soil moisture, temperature regulation, grain yield. A split-plot design study was used to test in two growing seasons, and this had three types of tillage regime (conventional, minimum, and zero tillage) combined with different degrees of residue retention (0%, 50%, and 100%). The findings showed that minimum tillage treatment and 100 percent residue retention technique produced the best soil moisture retention (21.4 percent in 0-15 cm) and had a 14.2 percent increase in grain yield as opposed to conventional tillage that had zero percent retention of residue and grain yield increase (p<0.05). The results embolden the possibilities of conservation tillage in maintaining the crop productivity and enhancing long-term agriculture sustainability by reducing water erosion and retaining moisture even in areas with unpredictable rainfall patterns as demonstrated in this research.
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Inoculation of the Chickpea Plant with Rhizobium and Solubilization Forms of Bacteria to Increase Yield and Nodulation Process
Vol.2(2); Pages:25-31. Published on November 2025
Abstract
Biological inoculants are one of the sustainable alternatives to using chemical fertilizers, and they could boost nutrient uptake in availability and crop production in legume-based cropping environment. In this paper, the synergistic ability of co-inoculation of chickpea (Cicer arietinum L.) with Rhizobium ciceri and phosphate solubilizing bacteria (Pseudomonas fluorescens) was studied in terms of nodulation efficiency, shoot biomass and phosphorous uptake. The results obtained by both the green house and field experiment indicated that coinoculated treatments greatly surpassed their individual and control treatments on all evaluated parameters. The co-inoculated resulted in the grain yield increasing 22.3 percent and nodulation efficiency increased 38.7 percent in the field trials when compared to the untreated controls (p<0.01). The research shows the possibilities of using microbial consortia as an efficient and potentially successful way to increase phosphorus uptake and crops productivity in phosphorus-deficient soil which provides a prospect way of sustainable agriculture especially in pulse-based MPS.
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Evaluation of Intercropping Maize with Moringa and its Effect on the land Productivity and Nutritional Output in the Sub-Saharan Smallholder Systems
Vol.2(2); Pages:32-37. Published on November 2025
Abstract
Incorporation of nutritionally dense crops in staple-based systems provides a route to tackling the food and nutritional security problems of smallholder agro ecosystems. This was a field research that evaluated agronomic and nutritional performance of intercropping maize (Zea mays L.) with moringa ( Moringa oleifera ) under rainfed conditions in Ghana during two growing seasons. The trial was assessing alternate row and paired row intercropping systems to those of monoculture maize. Major performance indicators were land equivalent ratio (LER), grain yield and micronutrient output per unit area. The obtained results indicated that the average LER was 1.41, which indicated that larger land-use efficiency in intercropped plots is more effective. Even though yields of maize improved minimally (6.2 percent), the nutritional content of protein and iron across the system rose significantly (19.7 and 23.5 percent, respectively) because of moringa leaves which contain both nutrients in abundant quantities. This shows a synergistic benefit both with the respect to stability of yields, as well as nutritional quality. The results portray the maize moringa intercropping as a potential tool of nutritional intensification and sustainable land management option in any tropical smallholder farming environment.
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Explore these articles to gain valuable insights into the most current research and developments in the field of crop science. The topics range from advances in crop genetics and breeding to innovative farming practices and sustainable agricultural solutions.
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