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.

Based on the production practice of Allium fistulosum in Linquan County, this paper systematically summarized the highyield cultivation technology system of Allium fistulosum in Linquan County from key links such as variety selection, seedling cultivation techniques, field planting and management, green control of diseases and pests, and post-harvest processing. It provided scientific and feasible technical guidance for grassroots growers and helps improve the quality and efficiency of the Allium fistulosum industry in Linquan County.

To clarify the field control effect of biological pesticides on wheat Fusarium head blight, wheat Fusarium head blight was selected as the target disease for control. A field efficacy test was conducted at the Agricultural Science and Technology Experiment Base in Shouguang City. The efficacy of Bacillus subtilis wettable powder against wheat Fusarium head blight and the safety of the crop were determined. This study confirmed that Bacillus subtilis had stable control effect on wheat Fusarium head blight under suitable environmental conditions and had high crop safety. It could replace or reduce the use of some chemical pesticides, providing scientific basis and data support for the construction of a green comprehensive control technology system for wheat Fusarium head blight.

In order to efficiently utilize land resources and increase economic benefits, based on production practice, this paper summarized the three-in-one vertical planting cultivation technology of inter-cropping Benincasa hispida and watermelon with chili peppers. The key technical points included variety selection, pre-planting preparations, planting methods, post-planting management, and pest and disease control. The goal was to achieve a pure income of 48 000 yuan per crop, maximizing the benefits of the solar greenhouse. This technology was suitable for promotion and application in the Alar region.

Yueyang Agricultural Science Research Institute selected Shengtaiyou 018 as the test variety and set up 3 treatments to study the effects of different fertilization treatments on the agronomic traits, yield, and fertilizer utilization rate of rice. The results showed that soil testing and formulated fertilization could significantly improve the agronomic traits of rice, with the effective spike number, per-spike grain number, and thousand-grain weight increasing by 5.2%, 6.2%, and 1.2% respectively, and the rice yield increasing by 7.8%, significantly improving the utilization rate of nitrogen, phosphorus, and potassium fertilizers. In conclusion, soil testing and formulated fertilization could achieve the goals of increasing yield, improving quality, reducing costs, and increasing efficiency for Shengtaiyou 018, and could be widely promoted on a large scale.

Based on the damage caused by Sphacelotheca reiliana, this paper focused on the aspects such as the selection and application of disease-resistant varieties, control of the initial infection source, strengthening of cultivation management during the seedling stage, and application of chemical treatments, and proposed comprehensive control measures, with the aim of providing experience and reference for the prevention and control of Sphacelotheca reiliana.

To address the issues of low standardization in the cultivation of medicinal Chrysanthemum morifolium in Xiuning County, as well as the lax management in the field, based on the local subtropical monsoon climate, mountainous and hilly terrain, and characteristics of red and yellow soils, combined with the quality requirements of Chrysanthemum morifolium Huangshan Gongju, a systematic integration of key technologies such as site selection and preparation, seedling cultivation, field regulation, and green control was carried out to form a standardized technical system that could directly guide farmers' operations. This provided technical support for improving the quality and efficiency of the Chrysanthemum morifolium industry in Xiuning County and promoting rural revitalization.

To meet the requirements for high-quality and efficient production of mountain-grown Actinidia chinensis, based on the regional ecological characteristics and multiple field experiments, a comprehensive cultivation technology system integrating variety selection and configuration, soil water and fertilizer regulation, tree pruning and management, detailed flower and fruit management, and green disease and pest control were integrated and constructed. This provided practical reference and technical support for the green standardized cultivation of Actinidia chinensis in southern mountainous areas.

To explore the high-yield and high-quality cultivation mode of summer soybeans suitable for the ecological conditions of Jinping County, using the local main variety Qiandou No.12 as the material, three sowing methods and three fertilization levels were set up, resulting in a total of 7 treatments. The effects of different treatments on the agronomic traits, yield, and quality of soybeans were studied. The results showed that different treatments had significant effects on soybean plant height, number of pods per plant, number of seeds per pod, hundred-grain weight, and seed yield. Under the ecological conditions of Jinping County, the combination of wide and narrow row sowing (60 cm+40 cm) and 300 kg/hm² compound fertilizer was a preferable cultivation mode for achieving high yield and high quality of Qiandou No.12.

Took the Salvia miltiorrhiza planting in Zhengning area as the research object, five gradient density treatments were set up to systematically analyze the effects of planting density on the growth dynamics, yield composition and medicinal component accumulation of Salvia miltiorrhiza. The results showed that the medium-density treatment had the best overall benefits, and its key growth indicators such as plant height and stem diameter during the seedling stage and flowering stage were significantly better than those of other treatments. In conclusion, 125 000 plants/hm² was the ideal planting density for high-quality and high-yield production of local Salvia miltiorrhiza, which could provide technical references for standardized cultivation.