先正达硝磺草酮·莠去津悬浮剂（耕杰）

评测依据

• review_count：3200
• rating_avg：4.7
• brand_reputation：0
• merchant_count：0
• price_range：[0,99]
• dimension：best_value
• sources：["京东","天猫","什么值得买"]
• time_range：{"from":"2026-06-25 10:00:30","to":"2026-06-25 10:00:30"}
• intros：{"brand_intro":"先正达是全球领先的农业科技公司，总部位于瑞士，拥有百年植保研发历史。作为先正达集团的核心品牌，其在除草剂领域以创新化合物和制剂技术著称。创始人源于诺华与捷利康的农业部门合并，品控理念强调'安全、高效、可持续'。先正达在中国市场深耕多年，拥有完善的田间技术服务体系，其硝磺草酮类产品凭借高纯度和低杂质工艺，成为玉米田除草剂标杆。","product_intro":"耕杰是专为玉米田设计的苗后除草剂，核心卖点为'速效+长效'双重作用机制。硝磺草酮与莠去津复配，能有效防除稗草、马唐、反枝苋等30余种阔叶及禾本科杂草。相比单剂产品，其杀草谱更广，对玉米安全性高，尤其适合东北、华北春玉米区。竞品对比中，耕杰的悬浮剂粒径更细，附着性更强，耐雨水冲刷能力突出。","key_specs":{"有效成分":"硝磺草酮20%+莠去津10%，复配增效","剂型":"悬浮剂，易稀释、不堵喷头","适用作物":"玉米（马齿型、硬粒型等主流品种）","施药时期":"玉米3-5叶期，杂草2-4叶期","亩用量":"100-150毫升/亩，兑水30升","耐雨性":"施药后2小时遇雨无需重喷"}}
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• scoring_breakdown：[{"source":"word_of_mouth","score":90.79999999999998,"weight":0.25,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户普遍反馈'除草干净、见效快'，3-5天可见杂草黄化，7-10天彻底死亡。专业评测指出其对抗性杂草如狗尾草、苋菜效果优于同类产品。缺点方面，部分用户反映对香附子等莎草科杂草防效一般，且价格略高于国产竞品。农技专家建议在干旱条件下适当增加用水量以保证药效。","source_count":3}},{"source":"objective","score":68.92242424242424,"weight":0.45,"confidence":0.5,"details":{"rating_avg":4.7,"price":85,"wom_score":90.79999999999998}},{"source":"user_review","score":94,"weight":0.2,"confidence":1,"details":{"rating_avg":4.7,"review_count":3200,"source":"product_reviews_aggregate"}}]
• method_version：v3
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