Differences in Acquisition of Organic Nitrogen in Soils Between Bok Choy and Tomato

Enomoto, Takumi; Sakurai, Michihiko; Okamoto, Mamoru; Shinano, Takuro; Osaki, Mitsuru

doi:10.1080/01904167.2012.689907

Cited by 5 publications

(5 citation statements)

References 26 publications

(32 reference statements)

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“…The concentrations of inorganic N and TAA were analyzed in the soil samples. The inorganic N (NH 4 + -N and NO 3 – -N) was extracted from the soil by shaking with 2 M KCl . The soil (1 g) was shaken with the 2 M KCl (5 mL) in 10 mL volume polycarbonate tubes on an end-to-end shaker (200 rpm, 30 min).…”

Section: Methodsmentioning

confidence: 99%

“…It has been well documented that the responses to organic matter in terms of growth and N uptake differ among plant species. − Some plants possess the ability to acquire and metabolize organic N (ON) efficiently in the form of amino acids, , peptides, , and proteins . Once applied to the soil, organic matters undergo stepwise mineralization, including proteolysis, ammonification, and nitrification, where proteinaceous compounds are converted into amino acids, ammonium (NH 4 + ), and nitrate (NO 3 – ) by soil bacteria and fungi.…”

Section: Introductionmentioning

confidence: 99%

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Differential Responses of Soybean and Sorghum Growth, Nitrogen Uptake, and Microbial Metabolism in the Rhizosphere to Cattle Manure Application: A Rhizobox Study

Chu

Sha

Nakamura

et al. 2016

J. Agric. Food Chem.

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In this study, we determined the capacity of soybean (Glycine max L. Merr. cv. Hoyoharuka) and sorghum (Sorghum bicolor L. Moench. cv. Hybrid Sorgo) to utilize different forms of nitrogen (N) in a rhizobox system. Seedlings were grown for 35 days without N or with 130 mg N kg soil as ammonium sulfate or farmyard cattle manure. The soil fractions at different distances from the root were sliced millimeter by millimeter in the rhizobox system. We assessed the distribution of different forms of N and microbial metabolism in different soil fractions in the rhizosphere. There are no treatment-dependent changes in biomass production in the roots and shoots of soybeans, however, the ammonium and manure treatment yielded 1.30 and 1.40 times higher shoot biomass of sorghum than the control. Moreover, the depletion of inorganic N and total amino acids (TAA) in the rhizosphere was largely undetectable at various distances from the soybean roots regardless of the treatments employed. The addition of ammonium sulfate resulted in a decrease in the nitrate concentration gradient as the distance decreased from the sorghum roots. The addition of manure to the soil increased the N content in the sorghum shoots, 1.57 times higher than the control; this increase was negatively correlated with the concentrations of TAA in the soil of the root compartment. In addition, the application of manure simultaneously induced TAA depletion (i.e., the TAA concentration in root compartment was 1.48 times higher than that in bulk soil) and greater microbial activity and diversity in the sorghum rhizosphere, where higher microbial consumption of asparagine, glutamic acid, and phenylalanine were also observed near the roots. Our results are first to present the evidence that sorghum may possess a high capacity for taking up amino acids as a consequence of organic matter application, and microbial metabolism.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Differential Responses of Soybean and Sorghum Growth, Nitrogen Uptake, and Microbial Metabolism in the Rhizosphere to Cattle Manure Application: A Rhizobox Study

Chu

Sha

Nakamura

et al. 2016

J. Agric. Food Chem.

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“…Significant negative correlations between the phosphate buffer-extractable soil organic N and soil protease activity in near-rhizosphere soil with CM treatment also support this hypothesis (Figure 8). Different growth responses to mixed cropping with lupin between timothy and orchard grass may be due to different uptake characteristics of low-molecular-weight peptides and amino acids between these two grass species (Pirhofer-Walzl et al 2012;Watanabe et al 2012).…”

Section: Discussionmentioning

confidence: 99%

Effect of mixed cropping with lupin (Lupinus albus L.) on growth and nitrogen uptake in pasture grasses grown under manure application

Fujiishi

Maejima

2019

Archives of Agronomy and Soil Science

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The use of organic fertilizer is essential to ensure sustainable agricultural production. Because organic fertilizer normally acts as a slow-release fertilizer, improving its nutrient-use efficiency is important, particularly in terms of nitrogen (N) nutrition. In the present study, we attempted to increase the N-use efficiency of cattle farmyard manure (CM) in the cultivation of pasture grasses by mixed cropping with white lupin (Lupinus albus), which has been reported to decompose organic N in its rhizosphere. Timothy (Phleum pratense) and orchard grass (Dactylis glomerata) were cultivated with or without either lupin or soybean (Glycine max) in pots under three different N treatments (CM, ammonium sulfate, or no N). In the CM treatment, growth was higher in grasses cultivated with lupin than in those cultivated alone or with soybean. Moreover, decomposition of soluble organic N and protease activity in the rhizosphere soil of grasses with CM treatment were enhanced by mixed cropping with lupin. Analyses of microbial activity and bacterial community structure using Biolog EcoPlates suggested that the enhanced decomposition of soluble organic N was facilitated by lupin roots rather than by rhizosphere microorganisms.

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“…with NPI. Brassica chinensis is popular as a leafy vegetable because of its ease of growth in a variety of climatic and soil conditions, 16,17 production and storage, and high nutritional value from folate and vitamins; China is one of the largest producers of B. chinensis L . 18 …”

Section: Introductionmentioning

confidence: 99%

“…Research has shown that NPI can improve the yield, quality and WUE of a variety of crops (tomatoes, peppers, cabbage, tobacco, cucumber and crown daisy), 1,4,6,15 but little has been reported on regarding the production of B. chinensis L. with NPI. Brassica chinensis is popular as a leafy vegetable because of its ease of growth in a variety of climatic and soil conditions, 16,17 production and storage, and high nutritional value from folate and vitamins; China is one of the largest producers of B. chinensis L.. 18 Brassica chinensis L. is a common greenhouse horticultural crop but little is known regarding how micro-irrigation versus conventional irrigation affects production. It is important to find the appropriate water and fertilizer parameters for actual agricultural production using NPI.…”

Section: Introductionmentioning

confidence: 99%

Negative pressure irrigation on water use efficiency, yield and quality of Brassica chinensis L.

et al. 2021

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BACKGROUND: Water is critical to the production of crops, especially when faced with seasonal drought or freshwater scarcity. We compared the effect of negative pressure irrigation (NPI) on water use efficiency (WUE), nutrient uptake, yield and quality of Brassica chinensis L. using a greenhouse plot experiment. Three different water supply pressures (−5, −10 and −15 kPa), and a conventional irrigation (CK) treatment, were arranged in a randomized design with three replications. RESULTS: Our results suggest that plant height, leaf area, number of leaves and ratio of root to shoot were significantly correlated with water supply pressure. Specifically, our results show that B. chinensis L. yield was increased 50% with NPI versus CK. Water supply pressure had a significant effect on N and P nutrient uptake and no significant effect on K. The average concentration of vitamin C was greatest with −5 kPa treatment and consecutively declined. According to our results, NPI can save up to 36.8% of water used and improve WUE by 61.3% during growth of B. chinensis L. Our results suggest that the optimum irrigation management strategy is −5 kPa treatment.CONCLUSION: NPI versus CK can provide more stable irrigation water and retain soil moisture during plant growth, resulting in an increased WUE and yield with suitable water supply pressure. While our results suggest that NPI can enhance B. chinensis L. yield and perhaps also quality, future research should explore the mechanism of NPI in relation to yield and water use efficiency.

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Differences in Acquisition of Organic Nitrogen in Soils Between Bok Choy and Tomato

Cited by 5 publications

References 26 publications

Differential Responses of Soybean and Sorghum Growth, Nitrogen Uptake, and Microbial Metabolism in the Rhizosphere to Cattle Manure Application: A Rhizobox Study

Differential Responses of Soybean and Sorghum Growth, Nitrogen Uptake, and Microbial Metabolism in the Rhizosphere to Cattle Manure Application: A Rhizobox Study

Effect of mixed cropping with lupin (Lupinus albus L.) on growth and nitrogen uptake in pasture grasses grown under manure application

Negative pressure irrigation on water use efficiency, yield and quality of Brassica chinensis L.

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