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试验整枝配合施肥,旨在探讨整枝与养分吸收分配的关系,为番茄整枝增产提供理论依据。试验在大棚内进行,设3种整枝方式即单干整枝、连续摘心整枝及老株再生整枝。结果表明,3种整枝方式下番茄N,P,K积累量随生长发育而增加,且全生育期K量>积N量>。到株龄218d,单株N,P,K积累单干整枝为643g,253g,660g;连续摘心整枝为676g,255g,684g;老株再生整枝为664g,271g,724g。追肥促进N,P,K的积累,追肥次数越多积累量越大。3种整枝方式均表现为两次吸肥高峰期分别为生育前期和采收盛期之前,追肥使第2次吸收高峰期提前到来。对于连续摘心整枝采收盛期以前追肥明显增产,而后期追肥增产潜力不大;对于单干整枝和老株再生整枝追肥次数越多增产越大,尤其是老株再生整枝后期追肥对再生期的产量起决定作用。
Experiment pruning with fertilization, aimed at exploring the relationship between pruning and nutrient absorption and distribution, provide a theoretical basis for tomato pruning. The experiment was carried out in a greenhouse. There were three kinds of pruning methods, namely single pruning, continuous inpping pruning, and old pruning. The results showed that the accumulation of N, P and K in tomato under three kinds of pruning methods increased with the growth and development, and the amount of K> N during the whole growth period. To the plant age 218d, the accumulation of single N, P, K monoliths 643g, 253g, 660g; continuous topping pruning 676g, 255g, 684g; old strains of pruning regeneration to 664g, 271g, 724g. Topdressing to promote the accumulation of N, P, K, the more the number of top dressing more accumulation. Three kinds of pruning methods are manifested as two peak sucking fat, respectively, before the pre-harvest and peak harvest, topdressing so that the second peak early arrival. For continuous topping pruning harvest before the peak fertilizer significantly increased, while the late dressing yield potential is not large; for the pruning and old strains of pruning the more the number of pruning more output, in particular, Play a decisive role.