Assessment of no-tillage farming. IV. Soil changes and root growth.

Sakai, Naoki; Sunohara, Wataru; Yonekawa, Satoshi; Tsunoda, Kosei

doi:10.4035/jsfwr.23.25

Cited by 4 publications

(3 citation statements)

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“…Maize root system tends to be longer and shallower with plowing than in rotary tilling in upland fields converted from paddy fields (Shinoto, Matsunami, Otani, Kanmuri & Maruyama, 2017, 2018b. Maize root system tends to develop in surface layers under no-tillage (Harada, Kobayashi, Miyazono, Takenouchi & Kuwamizu, 2009;Sakai, Sunohara, Yonekawa & Tsunoda, 1988), which contributes to higher root lodging resistance in no-tillage than in tillage systems (Harada et al, 2009;Inoue, Ito & Saigusa, 2000). Therefore, it is possible that maize grown with plowing differs in root lodging resistance when compared with rotary tilling.…”

Section: Introductionmentioning

confidence: 99%

Effects of tillage on growth, yield and root lodging of six maize hybrids in upland fields converted from paddy fields in Andosol

Shinoto

Matsunami

Otani

et al. 2019

Plant Production Science

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We investigated the effects of tillage on growth, grain yield and root lodging of maize hybrids in upland fields converted from paddy fields in Andosol of northern Tohoku. Six hybrids were grown with rotary tilling or plowing (chisel plowing plus power harrow) in 2016 and 2017. Soil penetration resistance was higher in plowing than in rotary tilling under a soil depth of 5 cm. There were no significant interactions between hybrid and tillage method in plant height, SPAD value, grain yield, and yield components, indicating that growth and grain yield of the six hybrids were unaffected by tillage method. Maize hybrids had similar culm length and ear height, while horizontal pulling resistance was higher in plowing than in rotary tilling. In addition, root lodged plants caused by typhoons were fewer in plowing than in rotary tilling in 2017. There was a negative correlation between horizontal pulling resistance and the number of root lodged plants. The highest horizontal pulling resistance and the least number of root lodged plants were found in a maize hybrid KD641 grown by plowing. The results suggest that root lodging can be alleviated by growing rootlodging-resistant maize hybrids such as KD641 with plowing.

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Section: Introductionmentioning

confidence: 99%

Effects of tillage on growth, yield and root lodging of six maize hybrids in upland fields converted from paddy fields in Andosol

Shinoto

Matsunami

Otani

et al. 2019

Plant Production Science

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“…Sakai et al (1988) reported that there was no significant difference in SOC content between NT and CT for upland field production in a 7-year experiment. On the other hand, after adoption of the NT system, SOC accumulation in paddy fields occurs earlier and increases to a greater extent compared with upland fields.…”

Section: Tillage Practicesmentioning

confidence: 96%

Soil management practices for sustainable agro-ecosystems

2007

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“…Japanese soils, especially Andisols, usually show great soil organic carbon (SOC) stock which ranges from 30 to 60 g kg -1 (Kusaba, 2001); therefore it is often difficult to increase SOC by adopting NT. Sakai et al (1988) reported that there was no significant difference in SOC content between NT and CT for upland field production in a 7-year experiment. On the other hand, SOC accumulation in paddy fields occurred earlier and increased to a greater extent compared with upland fields after adoption of the NT system.…”

Section: Introductionmentioning

confidence: 96%