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1.茶园施用氮肥增效剂2-氯-6-(三氯甲基)吡啶,在四、五月平均气温21.2℃以下,降雨量多的春茶期间均较不施减产,以不施为宜。夏茶效果较明显,四年平均因用量不同增产1.46—12.37%,秋茶欠稳定,大多年份增产。配施量夏茶以纯氮量3—6%为宜,秋茶以0.15或不施为宜。2.茶园应用缓效肥试验,以 N:P:K=2:1:1混合选粒成缓肥,四年平均春季较
1. Tea plantation application of nitrogen synergist 2-chloro-6- (trichloromethyl) pyridine in April and May, the average temperature of 21.2 ℃ below the spring rainfall during the period of more than no yield reduction to not be applied should. Summer tea effect is more obvious, four-year average due to different dosage increase 1.46-12.37%, autumn tea is not stable, most of the year increase. With the amount of summer tea to 3-6% of pure nitrogen is appropriate, autumn tea to 0.15 or not suitable. 2. Slow fertilizer application tea plantation to N: P: K = 2: 1: 1 mixed granulation into slow fat, four-year average spring than