褐藻酸复混肥对夏黑葡萄花序伸长及生产成本的影响OA

A field experiment was conducted using'Summer Black'grape as the test material to evaluate the effects of alginate compound fertilizer on inflorescence elongation and production costs.Results indicated that application of alginate compound fertilizer during grape production significantly promoted inflorescence elongation,with average increases of 3.45 cm and 4.88 cm at the Jingxi and Hengzhou experimental sites,respectively,compared to the control.When evaluated under equivalent nitrogen application rates,the treatment reduced 667 m2 fertilizer costs by 152.59 yuan,lowered 667 m2 labor input costs during fertilization by 45 yuan,and decreased 667 m2 flower and fruit management expenses by 722.5-752.5 yuan,resulting in a 667 m2 total cost reduction of 920.09-950.09 yuan.These findings demonstrate that the rational use of alginate compound fertilizer not only enhances inflorescence development but also substantially reduces production costs,suggesting its potential for sustainable grape cultivation in subtropical hot and humid regions.