A greenhouse study was conducted to promote mechanized vegetable production in solar greenhouses and explore suitable ridge distance for tomato cultivation on the east-west ridges.The study included tomato variety'Ruiyilang'as a test material with traditional north-south ridge cultivation method as control(CK)and RD1(with middle ridge distance of 1.6 m),RD2(with middle ridge distance of 1.8 m),and RD3(with middle ridge distance of 2.0 m)3 treatments designed to east-west direction ridges to study the effects of different ridge distances on canopy environment,plant growth and yield,and fruit quality of tomato in solar greenhouse conditions.The results showed that there was no significant difference in plant height,stem thickness,stem and leaf fresh weight,and fruit quality among the three ridge spacing treatments of tomato in the east-west ridges when compared with CK;RD2 significantly increased the light interception and average yield per plant by 11.22%and 11.17%compared to CK.Under RD2 conditions,the light interception per plant of the southern row was generally higher than that of the northern row and higher than CK.At the same time,the average yield per plant of the southern row increased by 6.30%to 21.46%,and the average yield per plant of the northern row increased by 4.06%to 10.93%.Furthermore,a work lane width of 1 meter between the RD2 ridges(work lane)is capable of meeting the specifications of a multifunctional work platform truck that has a width of 50-75 cm.Therefore,1.8 meters is an appropriate ridge distance parameter for mechanized tomato cultivation in the east-west ridges of a solar greenhouse.
solar greenhouseautumn and winter crop tomatoessuitable for mechanized cultivationridge distance