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| Study on Parameter Optimization of Protected Tomato Cultivation Integrating Agronomy with Agricultural Mechanization |
| ZOU Hao，SUN Mingqin，TIAN Yongqiang，GAO Lihong* |
（College of Horticulture，China Agricultural University，Beijing Key Laboratory of Growth and Development Regulation for
Protected Vegetable Crops，Beijing 100193，China）
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Abstract In order to improve the mechanization level in the key link of protected tomato cultivation，from the angle of integrating agronomy with mechanization，and on the basis of ensuring tomato yield and quality，it is urgently needed to study and put forward an agronomic standard easily operated by mechanization．Taking tomato with larger cultivated area in greenhouse as research object，the existing cultivating density and planting bed size as the contrast，this experiment carried out croping in spring and autumn，and explored suitable planting bed parameter and proper planting density for protected tomato cultivation．Results indicated that under the condition of not changing the constant number of cultivated plants per 667 m2，changing 1.4 m double row to 1.6 m double row or 1.6 m single line，and changing the wide strip narrow gap cultivation field to narrow strip wide trench planting beds，shrinking the narrow line space from 50 cm to 30 cm，increasing the wide line spacing from 90 cm to 130 cm could significantly improve the ventilation and light transmission characteristics of the wide rows，yet without obvious impact on tomato nutritional growth，yield and quality，although the light intensity in the lower part of the narrow row was decreased to certain extent comparing with that of the contrast．Therefore，from the perspective of integrating agronomy with agricultural mechanization and simplifying management procedure in later cultivation period，it is suggested to adopt special methods including cultivation by narrowing piece of land and widening furrow，fix planting on 1.6 m double row or single row，1 900-2 500 plants per 667 m2．
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Received: 10 March 2021
Published: 18 May 2021
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