Bio:
Email: lipengwk@outlook.com
李鹏(1984—),男,硕士,融通农业发展(杭州)有限责任公司党委书记、执行董事,负责公司资产接收与管理,聚焦农业及非农土地租赁与经营,推动公司战略规划的落地;lipengwk@outlook.com
为提高沿海滩涂区盐碱地水稻产量并改善稻米品质,实现减肥增产提质,开展了靶向施肥与常规施肥效果对比的田间试验。结果表明:与常规施肥相比,靶向施肥促进了水稻的生长发育,出苗率提升6.0%,分蘖数增加18.2%,抽穗天数缩短15.4%,秸秆坚挺整齐、抗倒伏能力强;水稻产量提高5.9%,千粒质量增加3.5%,稻米品质有一定程度的改善;施肥总量减少37.1%,大幅减少了氮、磷肥的施用量,适当提高了钾肥用量,施肥成本降低16.0%,利润提高35.2%。
A field experiment comparing targeted fertilization with conventional fertilization is conducted to enhance rice yield and improve grain quality in coastal tidal flat saline-alkaline soil, aiming to achieve the goals of reduced fertilizer application, increased yield, and enhanced quality. The results show that, compared to conventional fertilization, targeted fertilization promotes rice growth and development: the seedling emergence rate increases by 6.0%, tiller number rises by 18.2%, and heading days decreases by 15.4%. The rice plants exhibit sturdier and more uniform straw with enhanced lodging resistance. Furthermore, rice yield increases by 5.9%, and the 1 000 grain weight increases by 3.5%, along with a certain degree of improvement in grain quality. The total fertilizer application is reduced by 37.1%, achieved primarily through significant reductions in nitrogen and phosphorus fertilizer inputs, while potassium fertilizer application is appropriately increased. Consequently, fertilization cost decreases by 16.0%, and profit increases by 35.2%.
LIU W F, YANG H, LIU J G, et al. Global assessment of nitrogen losses and trade-offs with yields from major crop cultivations[J]. Science of the Total Environment, 2016, 572: 526-537. doi:10.1016/j.scitotenv.2016.08.093
WANG X Y, ZHU H, HOU S N, et al. Environmental impacts of fertilization during rice production in saline-alkali paddy fields based on life cycle assessment[J]. Journal of Cleaner Production, 2024, 467: 142947. doi:10.1016/j.jclepro.2024.142947