| Effect of planting patterns on yield of different maize cultivars |
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| DOI：10.7606/j.issn.1000-7601.2017.06.13 |
| Key Words: planting pattern maize cultivars row spacing growth stage yield |
| Author Name | Affiliation | | GENG Zhi-guang | Qingyang Academy of Agricultural Sciences, Qingyang, Gansu Province 745000, China | | LI Ke-fu | Qingyang Academy of Agricultural Sciences, Qingyang, Gansu Province 745000, China | | ZHANG Wen-wei | Qingyang Academy of Agricultural Sciences, Qingyang, Gansu Province 745000, China | | ZHANG You-long | Qingyang Academy of Agricultural Sciences, Qingyang, Gansu Province 745000, China | | LI Feng | Qingyang Academy of Agricultural Sciences, Qingyang, Gansu Province 745000, China |
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| Abstract: |
| A field experiment of split-split plot design was carried out in Qingyang, Gansu Province, to evaluate the effects of five maize cultivars, Zhengdan 958 (C1), Dongdan 13(C2), Denghai 1 (C3), Denghai 3521(C4) and Jade 335 (C5), with three planting patterns with film side planting (A1), planting on membrane (A2) and open field planting (A3) and two row spacing with 35 cm (B1) and alternated between 20 cm and 50 cm (B2) during maize growth stage. The results showed that two planting pattern of out plastic film (A1) and on plastic film (A2) shorten the growth stage respectively compared with open field cultivation, with the emergence days reduced by 2.0 d and 1.2 d, the mature days 7.4 d and 11.4 d. Two row spacing had no marked influence on growth stage. 100-seed weight of planting pattern of A1 and A2 had higher than open field planting, as increased by 2.36 g and 1.82 g respectively. Denghai 3521 (C4) had the highest yield in two-year experiment, with the average yield of 11 051.15 kg·hm-2. Interactions were detected between row spacing and cultivars, and B1×C4 treatment had the highest yield of 11 039.7 kg·hm-2. |
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