Journal of Research in Multidisciplinary Methods and Applications

Analysis of Population Productivity Differences Among Tibetan Hulless Barley Varieties Under Fertilizer-Density Interactions

Anming Guo — 2025-07-15

Addressing the critical constraints of low tillering survival rate and population productivity on yield improvement in hulless barley (Hordeum vulgare L. var. nudum) within the Qinghai-Tibet Plateau region, this study employed a two-factor split-plot design (4 fertilizer levels×3 planting densities×2 varieties) to systematically analyze the regulatory mechanisms of fertilizer-density interactions on tillering dynamics and population productivity. The results indicated that the jointing stage is the key period for tiller regulation. Path analysis revealed for the first time that the IAA (Indole-3-acetic acid)/ZT (Zeatin) ratio exerted the strongest direct effect on tiller number (path coefficient = 0.443). The FC3 treatment (N 75 kg/ha + P₂O₅ 150 kg/ha) significantly promoted tillering, but hormonal responses differed markedly between varieties: High fertilizer (FC4) strongly induced ZT synthesis in Kunlun 14. Kunlun 15 maintained high IAA stability under FC3. Significant diminishing marginal returns were observed for nitrogen and phosphorus utilization. Kunlun 14 achieved peak nitrogen use efficiency (27.71%) and maximum yield (7808 kg/ha) under medium density (MD) combined with FC3. Kunlun 15 attained optimal nitrogen efficiency (24.26%) and high yield (7165 kg/ha) under low density (LD) with FC2, while excessive fertilization under high density resulted in negative agronomic efficiency. Optimization pathways for population structure revealed: Yield exhibited a highly significant positive correlation with seed setting rate (r = 0.962**) and grain weight per spike, but a trade-off existed between effective panicle number and 1000-grain weight (r=-0.218*). For Kunlun 14, MD-FC3 synergistically increased panicle number and grain weight. For Kunlun 15, LD-FC2 expanded panicle number, whereas high density reduced grain weight per spike by 13.9% due to ZT/IAA imbalance. These findings elucidate fertilizer and density management strategies for enhancing tillering, panicle formation, and high-yield population structure establishment in hulless barley, providing both theoretical and practical foundations for rational tiller utilization and high-yield cultivation.

The Logical Starting Point, Practical Difficulties and Key Points of The Construction of The Early Childhood Labor Education Community from The Perspective of Collaborative Education of The Home Community

Guofeng Zheng — 2025-07-15

This paper aims to explore the construction of early childhood labor education community from the perspective of collaborative education of home communities, and analyze the logical starting point, practical difficulties and key points of cracking. By integrating family, kindergarten and social resources, form a joint force for education and jointly promote the effective implementation of early childhood labor education. It is found that the logical starting point of the construction of early childhood labor education community from the perspective of collaborative education of home communities should include theoretical basis, practical needs, policy orientation and early childhood development needs. From the perspective of theoretical basis, constructivist theory, social learning theory and ecosystem theory provide solid theoretical support for community construction. At the level of social demand, the construction of early childhood labor education community is to respond to the current situation of labor education, make up for the shortcomings of a single education subject, and adapt to the needs of social development for future talent training and promote the all-round development of children. In terms of policy orientation, a series of policy documents of the party, the state and local governments provide policy guarantees for the construction of a community of early childhood labor education; Finally, the construction of a community of early childhood labor education is even more childlike. In view of these problems, this paper puts forward targeted solutions such as building collaborative consensus, improving cooperation mechanisms, integrating curriculum resources, and enriching practical activities, in order to provide useful reference for the in-depth development of early childhood labor education.

Application of Artificial Intelligence Teaching Assistant to Assist Students in Exploring S-shaped Pipeline Science in the Course of Fundamentals of Mechanical and Electrical System Control

Hang Yang — 2025-07-15

This paper focuses on the pain points in the teaching of the course "Fundamentals of Mechanical and Electrical System Control", and explores the application path and effectiveness of artificial intelligence teaching assistants in assisting students in carrying out scientific exploration and practice of S-shaped pipelines. The research shows that the artificial intelligence teaching assistant realizes the accurate matching and instant Q&A of course knowledge points through the construction of knowledge graphs, and generates personalized learning paths with the help of machine learning algorithms, which effectively solves the problem of insufficient guidance in traditional teaching. In the exploration practice of S-shaped pipelines, the dynamic visual display, real-time fault diagnosis feedback and multi-dimensional evaluation system of the intelligent simulation platform have significantly improved students' ability to apply core knowledge such as path planning algorithms and motor control principles. The practical results show that this teaching mode not only reduces the teaching burden of teachers, but also cultivates students' engineering practice literacy and innovative thinking, and provides practical experience for the intelligent teaching reform of engineering courses.