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近两年来,滨海县农业局和农科所,对三麦叶面喷施锌肥,进行了小区对比试验、多点示范试验和大面积推广使用,均收到了较好的效果。增产效果经试验,拌种、浸种及苗期、分蘗期、拔节期、孕穗期喷施,增产3.9—23.4％,以拔节期喷施效果最佳。其原因,主要有利于小花分化和减少小花退化,增加有效穗、穗粒数和千粒重。从试验资料看,拔节期喷锌肥,每亩
In the recent two years, Binhai County Bureau of Agriculture and Agricultural Science Institute have sprayed zinc fertilizer on the leaves of Sanmai, and conducted comparative experiments, demonstration experiments and large-scale popularization and utilization of plots, all of which received good results. The effects of increasing yield were tested, seed dressing, seed soaking, seedling stage, tillering stage, jointing stage and booting stage, and the yield was increased by 3.9-23.4%. The spraying effect at the jointing stage was the best. The reason is mainly conducive to floret differentiation and reduce floret degradation, increase effective panicle, grain number per spike and 1000-grain weight. From the experimental data, jointing zinc spraying fertilizer, per acre