| Effects of different maize\|cauliflower intercropping patterns on field microenvironment and cauliflower growth |
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| DOI：10.7606/j.issn.1000-7601.2026.02.13 |
| Key Words: intercropping patterns cauliflower field microenvironment growth and development yield quality |
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| Abstract: |
| To investigate the mechanism of different maize planting patterns on maize\|cauliflower intercropping compound populations,a two\|factor randomized block design was adopted in this experiment. The two factors were maize cultivar\|cultivation pattern and maize\|cauliflower row ratio with three levels and two levels, respectively. The three levels of maize cultivar\|cultivation were direct\|seeded ‘Qiangsheng 55’, direct\|seeded ‘Wannuo 2000’, and transplanted‘Wannuo 2000’,while the two levels of row ratio were 1∶2 and 1∶4. Six compound treatments marked as T1 to T6 and one control (CK, cauliflower monocropping) were arranged. The effects of these key factors on temperature and humidity regulation of the compound population and growth and development of cauliflower were comprehensively analyzed. The results showed that obvious differences in field microenvironment regulation existed among different treatments when daily temperature was above or equal to 25℃. Treatment T4,namely direct\|seeded ‘Wannuo 2000’ with 1∶4 row ratio, had the best microenvironment regulation effect. Compared with CK, T4 increased inter\|row air humidity by 7.8% and reduced surface temperature by 1.5℃ to 2.8℃, which significantly improved the microclimate for cauliflower growth. T4 also performed prominently in key agronomic indexes of cauliflower. Compared with the control,plant height,leaf width, horizontal diameter of the curd, longitudinal diameter of the curd, and yield of cauliflower in T4 increased by 8.7%,13.4%,17.9%,39.3%, and 15.1%, respectively, and the commodity rate reached 85.5%. Two\|way ANOVA results indicated that both row ratio and maize cultivar\|cultivation pattern exerted significant regulatory effects on cauliflower’s key agronomic traits, such as plant height and curd morphology, and their interaction further significantly affected number of leaves and leaf width traits. The results of grey relational analysis showed that the weighted grey relational degree value of treatment T4 reached 1.00. In summary, direct seeding of ‘Wannuo 2000’ combined with a 1∶4 row ratio can effectively coordinate the distribution of light and heat resources in field, optimize canopy structure, and realize the synergistic effect of cooling and moisture retention,so it can be used as a suitable configuration mode for maize\|cauliflower intercropping systems in the cold highlands of northern Shanxi. |
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