Nitrogen accumulation in soybean [<i>Glycine max</i>(L.) Merr.] is increased by manure compost application in drained paddy fields as a result of increased soil nitrogen mineralization

Nira, Rikiya; Hamaguchi, Hideo

doi:10.1080/00380768.2012.749524

Cited by 7 publications

(4 citation statements)

References 13 publications

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“…Organic matter not only supplies nutrients but also affects the physical, chemical, and biological properties of the soil to promote soybean growth. The application of livestock manure compost (LMC) has been reported to increase soybean production by improving N availability and N 2 fixation in soybean nodules [11,[36][37][38][39]. Green manure cultivation of N-fixing legumes is also effective in improving the N budget.…”

Section: Cultivation Managements For the Mitigation Of N Loss From Pa...mentioning

confidence: 99%

Nitrogen Budget in a Paddy-Upland Rotation Field with Soybean Cultivation

Takakai¹,

Kikuchi²,

Sato³

et al. 2022

Soybean - Recent Advances in Research and Applications

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To reduce the over-production of rice, the paddy-upland rotation system, which alternates every few years between paddy rice cultivation and upland crop cultivation in drained (converted) paddy fields, is now commonly practiced in Japan. Recently, depletion of available soil nitrogen (N) and a subsequent decline in soybean yield in converted upland fields with repeated rotation have been reported in northern Japan. To evaluate the N budget in the paddy-upland rotation field with soybean and rice, a 6-year lysimeter experiment was conducted. In the rotation system, a considerable loss of N occurred in both the upland soybean and paddy rice cultivation periods (−11.9 and − 2.3 g N m−2 y−1, respectively). To mitigate the N loss in the rotation system, N supply from organic matter application is required. The effects of applying different types of organic matter (leguminous green manure, hairy vetch, and livestock manure compost) on the N budget in soybean cultivated fields were investigated. Compared to the N loss in the control plot without organic matter application, the N loss was mitigated in the hairy vetch plot, and N accumulation occurred in the livestock manure compost plot (−13.7, −3.5, and +11.8 g N m−2 y−1, respectively).

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Section: Cultivation Managements For the Mitigation Of N Loss From Pa...mentioning

confidence: 99%

Nitrogen Budget in a Paddy-Upland Rotation Field with Soybean Cultivation

Takakai¹,

Kikuchi²,

Sato³

et al. 2022

Soybean - Recent Advances in Research and Applications

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“…RNSM during the soybean growth period was estimated using a zero-order reaction kinetics model, which is reportedly applicable to Japanese soybeans grown in an upland field converted from a paddy field (Nira & Hamaguchi, 2012). Because our study was conducted at the same experimental farm as that of Nira and Hamaguchi (2012), we used the same model parameters: 0.496 mgN kg −1 d −1 for the mineralization rate constant at 25°C (k 25 ) and 56,900 J mol −1 for the apparent activation energy (Ea). Although soil temperature is required to estimate RNSM using the reaction kinetics model, we used air temperature instead of soil temperature.…”

Section: Modeling Nitrogen Supplymentioning

confidence: 99%

“…By contrast, Sugihara et al (1986) simply expressed RNSM via a reaction model using the Arrhenius law because soil nitrogen mineralization is a result of microbial activity. Nira and Hamaguchi (2012) develop a zeroorder reaction kinetics model by employing the Arrhenius law and estimated the mineralized nitrogen accumulation in soybean cultivated in upland fields converted from paddy fields.…”

Section: Introductionmentioning

confidence: 99%

“…The objective of the present study was to develop a soybean crop model that simulates crop growth and production in upland fields converted from paddy fields by incorporating nitrogen components of biological fixation and soil nitrogen mineralization. The soybean crop model reported by Sinclair (1986) and Sinclair et al (2003), which estimated nitrogen fixation based on its linear relationship with aboveground biomass, was used as base model and the zero-order reaction kinetics model was introduced to estimate soil nitrogen mineralization (Nira & Hamaguchi, 2012). For validation of the model, we compared the model results to the experimental data of nodulating and non-nodulating soybeans cultivated in upland fields converted from paddy fields.…”

Section: Introductionmentioning

confidence: 99%

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Modeling biomass and yield production based on nitrogen accumulation in soybean grown in upland fields converted from paddy fields in Japan

Nakano

Homma

Shiraiwa

2021

Plant Production Science

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Crop models can help in identifying constraints to crop production and enhancing crop yield. Because one of the major constraints is the availability of nitrogen for seed production, evaluation of nitrogen accumulation is important for soybean crop models. In the present study, we developed a soybean crop model to evaluate biomass production and nitrogen accumulation of Japanese soybean cultivars grown in upland fields converted from paddy fields. The model simplified the effects of leaf nitrogen deficit on biomass production by reducing only the leaf area while maintaining leaf nitrogen concentration, and we introduced a zero-order reaction kinetics model to estimate soil nitrogen supply. The proposed model was observed to simulate the accumulation of aboveground biomass and nitrogen content in both nodulating and nonnodulating soybean cultivars until the mid-seed filling period. The model accounts for 94% of the observed variations in aboveground biomass and nitrogen content and for 69% of the observed variation in seed biomass. The normalized root mean square errors of aboveground biomass, nitrogen content, and seed biomass are 19.3%, 19.6%, and 20.2%, respectively. Because the model does not include the effects of soil water status on pod formation and nitrogen fixation, seed biomass was overestimated in some cases. However, our model quantified the effects of changes in the soil nitrogen supply and biological nitrogen fixation on soybean production and will be useful for identifying and eliminating production constraints in Japanese soybeans.

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