Abstracts of Nippon Dojo-Hiryogaku Zasshi

Vol. 86 (2015) No. 4 (pp. 283–350)

Original Papers

Dry matter production and nutrient uptake by lotus (Nelumbo nucifera)

Hiroshi OTABE^1,2 and Tsuyoshi IIMURA¹

¹Ibaraki Pref. Agric. Inst. Hort. Ctr., ²Ibaraki Pref. South. Agric. Forest Off. Adm. Prom. Sec.

(Jpn. J. Soil Sci. Plant Nutr., 86, 283–289, 2015)

We examined dry matter production and nutrient uptake by roots of Kanasumi strains of lotus (Nelumbo nucifera) in Ibaraki.

1. The Kanasumi strains matured 10–20 days earlier than later-maturing cultivars.

2. The roots took up 80% of their totalwng.

3. Kanasumi 20 grew better than Kanasumi 34. At the same rate of nitrogen uptake, it took up more potassium than Kanasumi 34.

Using the results of nutrient uptake by lotus roots to devise a fertilizer regime, it should be possible to achieve stable production while reducing nutrient loads on the environment.

Key words: dry matter production, lotus root, nutrient absorption.

Synthesis of phosphate fertilizer from sewage sludge ash and alkaline wastewater, assessment of contamination by heavy metals, and evaluation of the characteristics of the fertilizer

Teruhito SASAKI¹, Hiroaki KUDO², Yoshiyuki SATO^1,3, Takashi ABE^1,4, Ryukou SUGAWARA¹, Yusuke MORIYA⁵, Shotaro HATSUYAMA⁵, Naoki SOETA⁶ and Shigenao KAWAI⁷

¹Iwate Indust. Res. Inst., ²Org. Revitalization Sanriku-region, Iwate Univ., ³Present address: Iwate Pref. Govt, ⁴Present address: Iwate Indust. Tech. Junior College, ⁵METAWATER Co., Ltd. R&D Ctr., ⁶Hitachi High-Tech Science Co., ⁷Fac. Agric., Iwate Univ.

(Jpn. J. Soil Sci. Plant Nutr., 86, 290–298, 2015)

We examined the extraction of phosphorus (P) from sewage sludge incineration ash with heavy metal-free alkaline wastewater for the recovery of P for the manufacture of phosphate fertilizer. The major components of the ash were P (13 wt%), silicon, calcium, aluminum, iron, magnesium, barium, potassium and sodium. The lead content was at risk of exceeding the Japanese regulation value (100 mg kg^–1). The efficiency of P extraction by the alkaline wastewater (0.5–1.0 mol L^–1 alkali) was similar to that of extraction with sodium hydroxide (NaOH; also 0.5–1.0 mol L^–1) at 70°. No toxic heavy metals were present in the P fraction. The resultant calcium phosphate contained 300 g kg^–1 of P. Our results support a possible strategy for the production of high-quality P fertilizer from sewage sludge and industrial wastewater.

Key words: alkali extraction method, alkaline wastewater, phosphate fertilizer, phosphorus recovery, sewage sludge incineration ash.

Notes

Factors on pH (H₂O) decrease of Andosols in the fields of upland crops on Tanegashima Island

Kiyofumi MORI¹, Hideo KUBOTERA², Hiroyuki NISHI³ and Koji FURUE³

¹Kagoshima Pref. Inst. Agric. Dev. Osumi Branch. ²NARO Natl. Agric. Res. Ctr., ³Kagoshima Pref. Inst. Agric. Dev.

(Jpn. J. Soil Sci. Plant Nutr., 86, 299–302, 2015)

Changes in radiocesium activities with new shoots growth of tea (Camellia sinensis (L.)) plants

Yuhei HIRONO and Kunihiko NONAKA

NARO Institute of Vegetable and Tea Science

(Jpn. J. Soil Sci. Plant Nutr., 86, 303–307, 2015)

Current Topic

The effect of fertilizer management on chemical properties of soil, ingredients in plants at forage rice cultivation

Masaya OYA¹, Tatsuki WASHIO¹, Yukio KOUNO², Tomio ITANI³ and Hiroshi FUJIMOTO⁴

¹Res. Inst. Agric. Okayama Pref. Tech. Ctr. For Agric., Fores. And Fisher., ²Present address: Hiroshima Pref. Tech. Res. Inst. Livestock Tech. Res. Ctr., ³Present address: Fac. Life and Environ. Sci., Pref. Univ. Hiroshima, ⁴Present address: Natl. Agric. Res. Ctr., Kinki-Chugoku-Shikoku Region

(Jpn. J. Soil Sci. Plant Nutr., 86, 308–312, 2015)

Lectures

Development and future prospects of innovative application methods with resin-coated fertilizer.

4. Innovative fertilization technology using resin-coated fertilizer and prospects for future

Masanao MATSUMOTO

Before affiliation, Shizuoka Prefecture

(Jpn. J. Soil Sci. Plant Nutr., 86, 313–318, 2015)

Agricultural production technology utilizing recent knowledge of plant nutrition science.

4. Approaches to reducing the use of potassium fertilizer

Kumiko OCHIAI

Grad. Sch. Agric., Kyoto Univ.

(Jpn. J. Soil Sci. Plant Nutr., 86, 319–323, 2015)

Review

Relationships between manganese/iron oxides and heavy metals in soils

Aomi SUDA and Tomoyuki MAKINO

Natl. Inst. Agro-Environ. Sci.

(Jpn. J. Soil Sci. Plant Nutr., 86, 324–331, 2015)

Miscellaneous

Actual situation and improvement practice of soil fertility of paddy field

Ayako TAKAHASHI^1,2, Kumi SATO³, Hideyuki UMEMOTO⁴, Akiko DOMOTO⁵, Nobu MATSUMORI⁶, Yoshihiro KANETA⁷, Toyoaki ITO⁸ and Hiroshi FUJII⁹

¹Iwate Agric. Res.Ctr., ²present address, Iwate Pref. Govt., ³Yamagata Pref. Govt., ⁴Ishikawa Pref., ⁵Mie Pref. Agric. Res. Inst., ⁶Kumamoto Pref. Govt., ⁷Akita Pref. Univ., ⁸Grad. Sch. Agric. Sci., Fac. Agric., Tohoku Univ., ⁹Fac. Agric., Yamagata Univ.

(Jpn. J. Soil Sci. Plant Nutr., 86, 332–338, 2015)

Eco-Products 2014

Jun WASAKI¹, Sonoko D. KIMURA², Yusuke TAKATA³, Kazumichi FUJII⁴, Kenta IKAZAKI⁵, Keiko MORI⁶, Yuri ICHINOSE⁷, Toru NAKAJIMA⁸, Haruo TANAKA² and Takashi KOSAKI⁹

¹Hiroshima Univ., ²Tokyo Univ. Agric. Tech., ³Natl. Inst. Agro-Environ. Sci., ⁴Forestry and Forest Prod. Res. Inst., ⁵Japan Int. Res. Ctr. Agric. Sci., ⁶Saitama Museum of Rivers, ⁷Kyoto Univ., ⁸Meiji Univ., ⁹Tokyo Metropolitan Univ.

(Jpn. J. Soil Sci. Plant Nutr., 86, 339, 2015)

Abstracts of Soil Science and Plant Nutrition, Vol. 61, No. 2 (2015)

(Jpn. J. Soil Sci. Plant Nutr., 86, 340–346, 2015)