This paper took Baisha Town of Jiangjin District in Chongqing City as an example, systematically reviewed and standardized the key technologies of the soybean-maize strip intercropping method. It focused on aspects such as variety selection, seed treatment, sowing time, strip configuration, land preparation and sowing, field management, and green control of diseases, pests, and weeds. This provided a reference for the promotion and application of this technology in Jiangjin District and surrounding areas, and aimed to achieve the production goal of stable maize yield and increased soybean production.

This study measured seven indicators in the aquaculture water bodies of three tailwater treatment modes. It also calculated the single pollutant pollution index and removal rate of the water bodies. The results showed that there were no significant differences in the water quality indicators among the groups. Among the three water treatment modes compared in this study, the three-pool-two-basin treatment mode had the best effect, followed by the three-level filtration mode, and the bottom discharge mode performed the worst among the two.

From 2023 to 2024, five growth regulators were applied in the field in Muli County for a field experiment to investigate the effects of different plant growth regulators on the growth and fruit quality of Red Fuji apples. The results showed that all the regulators could significantly promote tree growth. The comprehensive results indicated that benazin·glucosinolide had the best effect in increasing fruit size, sugar accumulation, and pectin content, while amino acid water-soluble fertilizer had a significant effect on the accumulation of solids and Vitamin C.

Rice-rapeseed rotation is a typical water-land rotation system. Through the complementarity of the two crops in ecological niches and nutrient demands, it effectively alleviates the problems caused by continuous cropping. This paper integrated a set of high-quality and high-yield cultivation techniques for rice-rapeseed rotation based on the actual situation in Wuhu area, aiming to provide technical support for agricultural production and promote the transformation and upgrading as well as sustainable development of agriculture.

Took the main cultivated Fuji apples in Yanyuan County as the research object, six different planting densities were set up to analyze the effects of planting density on the growth of apple trees, photosynthetic characteristics, and fruit quality. The results showed that as the tree spacing increased, the indicators such as tree height, trunk diameter, canopy size, and new shoot length all significantly improved. Low-density planting was beneficial for alleviating tree competition and promoting overall growth potential. The analysis of photosynthetic characteristics indicated that the 1.8 m tree spacing had the optimal photosynthetic rate, and the higher-density treatments increased by 20.7%, and stomatal conductance and transpiration rate were also significantly improved. In terms of fruit quality, the single fruit weight of T₄ treatment reached 195.42 g, and the soluble solids, sugar-acid ratio, and hardness of the higher-density treatments increased by 9.3%, 22.5%, and 6.3% respectively, with the best overall performance.