Effects of Wote super absorbent and PAM on soil moisture and maize growth
In order to explore using effect and using amount of Wote super absorbent, field experiments of applying 0 (CK), 15, 30, 45, 60 kg·hm<sup>-2</sup> Wote super absorbent and PAM respectively in furrow were conducted to study their effects on soil moisture and maize growth in loess hilly an...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Zhejiang University Press
2008-01-01
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| Series: | 浙江大学学报. 农业与生命科学版 |
| Subjects: | |
| Online Access: | https://www.academax.com/doi/10.3785/j.issn.1008-9209.2008.01.012 |
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| Summary: | In order to explore using effect and using amount of Wote super absorbent, field experiments of applying 0 (CK), 15, 30, 45, 60 kg·hm<sup>-2</sup> Wote super absorbent and PAM respectively in furrow were conducted to study their effects on soil moisture and maize growth in loess hilly and gully regions of northern Shaaxi. The result showes that soil moisture increased with increasing amounts of Wote and PAM in 10-20 cm and 40-50 cm soil depth during the growth season of maize. Soil moisture with Wote and PAM treatments was significantly (P<0.05) higher than that of CK in 0-50 cm soil depth in three leaves stage, in 0-100 cm soil depth in jointing stage, in 0-150 cm soil depth in tasselling-silking stage, and in 0-200 cm soil depth in maturing stage, and soil moisture increased with increasing amounts of Wote and PAM. Photosynthesis rate of leaves, biomass of stem and leaves, roots, corn ear, and the diameter of stem, kernel yields, 1000-kernel weight all increased with increasing amounts of Wote and PAM. From seeding to maturing stage, water consumption of maize with Wote and PAM treatments was lower than that of CK, but water use efficiency and water output rate were super significantly (P<0.01) higher than that of CK. There were no differences in soil moisture, biomass, and yields between same amount of Wote and PAM. Optimum amount of Wote and PAM in maize furrow cropping system should be 45 kg·hm<sup>-2</sup> in loess hilly and gully regions of northern Shaaxi. |
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| ISSN: | 1008-9209 2097-5155 |