PJB-2024-482
Study on Water Retention Agent and Biochar Application Based on Soil Conservation in Karst Orchards
Te Xu
Abstract
Karst mountain is a challenging agricultural region due to its complex geological formations and unique soil characteristics. The soil in this region is porous, which can lead to rapid water infiltration and loss of moisture. In this study, the effects of compound water-retraining agents on soil structure and fruit tree photosynthesis in Karst mountain was investigated by setting different application rates of water-retaining agents and biochar.The results showed that the soil structure, water regulation ability, and plant photosynthetic growth were significantly better in the soil treated with water-retaining agents than in the control group (set without water-retaining agents as the control group, hereinafter referred to as ck). After applying the water-retaining agents, the soil's water retention and water transport capacity were significantly enhanced, thereby improving the growth environment and crop growth. From the perspective of soil regulation and plant growth, a application rate of 95 g/m³ polyacrylamide or 122 g/m³ potassium polyacrylate was found to be the most suitable under the experimental conditions.
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