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| Yamashita, Jun; Tamura, Minoru N.. |
| Based on the specimens collected from Thailand and preserved in AAU, BKF, C, and KYO, Campylandra siamensis (Convallariaceae, Liliaceae s.l.) is newly described in this paper. This species is similar to C. chinensis (Baker) M.N. Tamura, S. Yun Liang & Turland, but differs from it in having numerous sessile leaves, longer white bracts, longer perianth tube and larger pistil. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Campylandra siamensis; Convallariaceae; Liliaceae s.l.; Tupistra; Thailand. |
| Ano: 2001 |
URL: http://www.repository.naturalis.nl/record/525551 |
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| Hossain, Shaikh Tanveer; Sugimoto, Hideki; Yamashita, Jun; Alcaraz, Joel M.. |
| In direct-sowing rice culture using cloth mulch, puddling and leveling (P & L) is usually done 2 days before the mulching (sowing). However, the mulching is very difficult, due to the muddy condition of the soil. Comparative studies were made to observe the effects of the timing of P & L, that is, P & L 10 days before mulching (P10) vs. P & L 2 days before the mulching (P2), on the operator's physical stress, the rice growth, and grain yield. Basal fertilizer was applied 2 days before the mulching in the P2 treatment (P2-B2), and topdressing was applied at 29 days before heading in all treatments. For the P10 treatment, timing of the basal fertilization was set at 14 (P10-B14) or 3 (P10-B3) days before the mulching. Results revealed that... |
| Tipo: Journal paper |
Palavras-chave: Production systems; Farming Systems; Soil. |
| Ano: 2009 |
URL: http://orgprints.org/29181/7/29181.pdf |
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| Hossain, Shaikh Tanveer; Sugimoto, Hideki; Yamashita, Jun. |
| Direct sowing with non-woven fabric mulch is the new organic rice cultivation system. We studied the effect of topdressing on individual leaf photosynthesis at different position and grain yield in rice plants cultivated by this system. Leaf photosynthetic rate at the different leaf position per plant (P N-LP) of the third and fourth to lower leaves was higher when the topdressing amount was increased. Without topdressing or in no-fertilizers plots, the P N-LP values of lower leaves were very low. The leaf photosynthetic rate per unit leaf area (P N-LA) decreased gradually as the leaf position became lower. Again, the P N-LA values of the top-dressed plots at the lower leaves were higher than that of plots without topdressing or without fertilizers. The... |
| Tipo: Journal paper |
Palavras-chave: Production systems; Farming Systems; Crop husbandry. |
| Ano: 2007 |
URL: http://orgprints.org/29179/7/29179.pdf |
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