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以“佳粉18号”番茄为试材,研究了不同基肥施入水平与施入深度对温室番茄不同生育时期生长、光合速率与蒸腾速率日变化的影响。结果表明:不同施肥处理对番茄不同生育期叶片的绿色度与光合速率以及蒸腾速率变化呈明显的正相关关系,而番茄叶片SPAD值随生育的进程呈增加的趋势;在基肥总量相同的情况下,分散施入60cm深度番茄植株生长速率与各生育期叶片光合与蒸腾速率都要大于分散施入表层30cm土壤处理;在基肥施入深度相同的条件下,基肥水平较高的处理番茄植株生长速率与盛果期光合与蒸腾速率都要大于低水平与不施处理。总体表明,表层与底层30cm土壤分别施入N 1 200kg/hm2、K 600kg/hm2、P 600kg/hm2的基肥水平更有利于番茄盛果期生长的需要。
The effects of different basal fertilizer application rates and application depths on the growth, photosynthetic rate and transpiration rate of greenhouse tomato were studied using “Jiafen 18 ” as test material. The results showed that there was a significant positive correlation between the leaf chlorophyll content and photosynthetic rate and transpiration rate of tomato at different growth stages under different fertilization treatments, while the SPAD value of tomato leaves showed an increasing trend with the growing process. In the same total amount of base fertilizer , The plant growth rate and the photosynthesis and transpiration rate of tomato plants dispersed at a depth of 60 cm were all greater than that of the 30 cm soil dispersed and applied to the surface. Under the same applied basal fertilizer level, the growth of tomato plants with a higher basal fertilizer level The photosynthesis and transpiration rate of both fruit and fruit were both higher than the low and no treatment. The results showed that basal fertilizer application rates of N 1 200kg / hm 2, K 600kg / hm 2 and P 600kg / hm 2 were the most favorable for the growth of tomato in full fruit stage.