The aim of this study is to exam the effect of microsprinkler irrigation technology under plastic film (MSPF) and to evaluate the reasonable micropore group spacing and capillary arrangement density in the greenhouse. Compared with drip irrigation under plastic film (DIPF) and microsprinkling irrigation (MSI) conditions, the effects of different micropore group spacing (L1: 30 cm micropore group spacing, L2: 50 cm micropore group spacing) and capillary arrangement density (C1: one pipe for one row, C2: one pipe for two rows, and C3: one pipe for three rows) with the MSPF on photosynthetic characteristics and fruit yield of tomatoes were studied using completely randomized trial design. The results showed that under the same irrigation amount, compared with DIPF and MSI, the photosynthetic rate of tomatoes treated with L1C2 increased by 8.24% and 13.55%, respectively. The total dry matter accumulation, yield, and water use efficiency at condition of L1C2 increased by 12.16%, 19.39%, and 10.03% compared with DIPF and 26.38%, 20.46%, and 31.02% compared with MSI, respectively. The results provide evidence that the MSPF can be applied to greenhouse tomatoes. The photosynthetic rate, total dry matter accumulation, yield, and water use efficiency of tomato leaves cultivated at a micropore group spacing of 30 cm were 1.07, 1.13, 1.14, and 1.13 times higher than those of 50 cm, respectively. With the decrease in capillary arrangement density, the photosynthetic characteristics of the tomato leaves, the total dry matter accumulation, and yield of tomatoes all experienced a decline. It is recommended to use a combination of one pipe for two rows of capillaries at a 30 cm micropore group spacing as the technical parameter of greenhouse tomato with MSPF in arid and semiarid sandy loam soils.

中文翻译：

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膜下微喷灌对温室番茄光合作用及果实产量的影响

这项研究的目的是检查在塑料薄膜（MSPF）下微喷灌技术的效果，并评估温室中合理的微孔组间距和毛细管布置密度。与塑料膜（DIPF）和微喷灌（MSI）条件下的滴灌相比，不同微孔组间距（L1：30 cm微孔组间距，L2：50 cm微孔组间距）和毛细管排列密度（C1：1）的影响用完全随机试验设计研究了MSPF对番茄的光合特性和果实产量的影响，其中一排，C2：两排，C3：三排。结果表明，在相同的灌溉量下，与DIPF和MSI相比，L1C2处理的番茄的光合速率提高了8倍。分别为24％和13.55％。L1C2条件下的总干物质积累，产量和水分利用效率分别比DIPF增长了12.16％，19.39％和10.03％，与MSI相比分别增长了26.38％，20.46％和31.02％。结果提供了MSPF可以应用于温室番茄的证据。以30厘米的微孔组间距种植的番茄叶片的光合速率，总干物质积累，产量和水分利用效率分别比50厘米分别高1.07倍，1.13倍，1.14倍和1.13倍。随着毛细血管排列密度的降低，番茄叶片的光合特性，总干物质积累和番茄产量均下降。