In the solar greenhouse, which was covered by ordinary film with small haze, the planting pattern of south-north ridge was used in common. In east-west ridge, there could be the shadow on the north side produced by south side of planting line, which caused some problems including that the distribution of light would be uneven, and the growth would be impacted. However, due to the current labor shortage and low production efficiency, there is urgent need for small agricultural machinery used in the solar greenhouse, while the shorter north-south planting ridge has limited the use of agricultural machinery and operation efficiency. Tomato ("Gem 1") plants, were planted on September 20, 2016 in glasshouse. The length of test greenhouse was 60 m, and the span was 8 m, which was located in Fengnan District, Tangshan City, Hebei Province. The greenhouse was covered by film with 55% haze and 85% light transmittance. This study aimed to analyze the effects of 2 planting ridges on tomato growth and yield. The photoperiod, and physiological and morphological indices of different height of canopy were studied with 2 kinds of tomatoes grown in north-south and east-west ridge, respectively, and the photosynthetic rate and yield were compared. The hypothesis is there exists the feasibility of using the east-west ridge in the scattered light solar greenhouse. To test this hypothesis, a study was conducted in glasshouses covered with scattering glass, converting a portion of the direct solar light into scattered light with different degrees of scattering, without affecting light transmission. Tomato was used in this study. The results showed that in the diffuse light environment, the tomatoes grown in the east-west ridge were the same as those in the north-south ridge, and the light intensity in the canopy increased with the height. And there was no significant difference in the light accumulation between the ridges of the east-west and north-south. In addition, the leaf area index (LAI) of tomato was 4.34 and 4.29 respectively, the chlorophyll SPAD (soil plant analysis development) content was 42.7±1.0 and 43.1±0.6 respectively for the east-west and north-south planting pattern, and the difference did not reach the significant level. In the east-west ridge, the distribution of leaves inclination angle was the same as that in the south-north ridge, concentrated between 60° and 80°. And the net photosynthetic rates of the leaves were 12.8 and 12.4 μmol/(m2·s), and the difference was not significant; from December 2016 to February 2017, the yield of tomato of east-west ridge was 2537.6 kg, and the other was 2421.1 kg, and the difference was not significant. It could be seen that there was no significant difference on the growth and yield of tomatoes between the east-west and south-north ridges in the solar greenhouse covered by film with 55% haze. Therefore, the effects of 2 kinds of planting ridges on the growth and yield of tomato in diffuse light in the Chinese solar greenhouse were not significant. Thus, in the solar greenhouse with diffuse light environment, we can not only use the east-west ridge instead of the north-south ridge for tomato planting pattern, but also use the east-west farming pattern for agricultural operation.%在普通薄膜覆盖下的中国日光温室中,普遍采用南北垄向的种植方式,但较短的南北种植距离限制了农机具的使用和作业效率的提高.该研究在散射光日光温室中(散射膜的雾度55%,透光率85%),对南北、东西2种垄向种植的番茄的光环境、生理和产量指标进行了测试分析,以探讨在散射光日光温室中采用东西种植垄向的可行性.结果表明:东西与南北垄向番茄冠层的光照累积量无显著性差异;东西和南北方向种植的番茄的叶面积指数(LAI)分别为4.34和4.29,SPAD值分别为(42.7±1.0)和(43.1±0.6),叶片净光合速率分别为12.8和12.4μmol/m2·s,差异均不显著;2016年12月至2017年4月番茄的实测总产量,东西和南北垄向分为2537.6和2421.1 kg,也没有明显差异.因此,在散射光日光温室中种植垄向对番茄的生长和产量没有产生影响,可以采用东西垄向的种植方式来替代南北垄向进行番茄生产.
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