標題: Titlebook: Isotopic Studies of Azolla and Nitrogen Fertilization of Rice; Report of an FAO/IAE K. S. Kumarasinghe,D. L. Eskew Book 1993 Kluwer Academi [打印本頁] 作者: formation 時間: 2025-3-21 17:55
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書目名稱Isotopic Studies of Azolla and Nitrogen Fertilization of Rice讀者反饋
書目名稱Isotopic Studies of Azolla and Nitrogen Fertilization of Rice讀者反饋學科排名
作者: 小步走路 時間: 2025-3-21 22:46
K. S. Kumarasinghe,D. L. Eskewibularorgans für die Gleichgewichtskontrolle richtig zu interpretieren. So kann z.B. aus der vestibul?ren Meldung über die Kopfbewegungen im Raum und der halspropriozeptiven Meldung über die Relativbewegung von Kopf zu Rumpf die für die Gleichgewichtserhaltung relevante Rumpfbewegung im Raum errechn作者: Assemble 時間: 2025-3-22 04:04
K. S. Kumarasinghe,D. L. Eskewngemeldet. Etwa die H?lfte der Verletzungen geht auf das Konto von Verkehrsunf?llen, die restlichen resultieren aus Sportunf?llen, Stürzen, Schl?gen etc. 90% aller Verunglückten laufen unter der Diagnose ?HWS-Distorsion“ bzw. ?Weichteilverletzungen der Halswirbels?ule“. Bei 10% der Patienten wird ei作者: 形狀 時間: 2025-3-22 06:11 作者: LURE 時間: 2025-3-22 11:19 作者: 平息 時間: 2025-3-22 16:11 作者: vanquish 時間: 2025-3-22 20:20
Assessment of nitrogen fixation in , using the ,N isotope dilution technique,deficient in nitrogen, even though about 87% of the atmosphere surrounding the earth is composed of N. gas. A major challenge to agriculture is to find ways by which this almost inexhaustible resource is made available for use by crop plants. Plants need N in a combined form to synthesize amino acid作者: mighty 時間: 2025-3-23 00:01 作者: Blasphemy 時間: 2025-3-23 02:02
Use of ,N labelled ammonium sulphate and ,N-labelled urea as a source for labelling , with ,N,dditions of 50-100 ppm N in nutrient solutions. With this method, it was found that ammonium sulfate resulted in a rapid drop in pH and very poor . growth. Thus under these conditions urea was found to be a better source of .N for labelling .. However, it was noted that labelled . produced with this作者: 沙發(fā) 時間: 2025-3-23 06:41 作者: 施舍 時間: 2025-3-23 13:43 作者: 有花 時間: 2025-3-23 15:07
Residual effects of , N to a second crop of rice or wheat,RI, 1982; Liu, 1979; Singh, 1977). While some reports (Rains and Tally, 1979) indicate excretion of N from the living . into the paddy field, a major part of its N comes as a result of decomposition of . in the soil (Watanabe et al., 1989). Therefore, a knowledge of the mineralization of . N and the作者: menopause 時間: 2025-3-23 18:11 作者: 格言 時間: 2025-3-24 00:07
Comparison of the availability of N from fresh vs dried ,logical developments of the rice plant. . requires about 30 days of growth to form a cover with an initial inoculum covering approximately 10% of the area. Thus, in practical terms, the maximum number of . incorporations that could be achieved during one rice crop is often limited to two. Because of作者: ARCHE 時間: 2025-3-24 05:24 作者: 闡明 時間: 2025-3-24 09:04 作者: institute 時間: 2025-3-24 12:10 作者: 繁重 時間: 2025-3-24 15:37 作者: Celiac-Plexus 時間: 2025-3-24 21:09
K. S. Kumarasinghe,D. L. Eskewnen Pseudosklerose. Er konnte schlie?lich auch auf einige ?ltere Mitteilungen hinweisen, die ?hnliches zeigten. So hatten bereits 1854 ., 1888 ., 1890 . und 1892 . dieselbe Krankheit unter anderem Namen beschrieben. . nannte sie tetanoide Chorea und . 1896 und 1908 ?allgemeine Chorea mit beiderseiti作者: LUCY 時間: 2025-3-24 23:28 作者: entrance 時間: 2025-3-25 04:09
K. S. Kumarasinghe,D. L. Eskewls?ule erlitten haben, laut Umfrage (Dvorak et al. 1987) einen protrahierten Verlauf. Zwar werden in der Folge nur 1,5% der Patienten mit Weichteilverletzung der Halswirbels?ule berentet, doch leidet etwa 1/3 aller Patienten auch vier bis sieben Jahre nach dem Unfall noch an behandlungsbedürftigen u作者: conservative 時間: 2025-3-25 08:37 作者: 兇猛 時間: 2025-3-25 13:19 作者: 游行 時間: 2025-3-25 18:06 作者: PARA 時間: 2025-3-25 20:04
Effects of phosphorus fertilization on growth and N accumulation in Azolla,hat ARA was reduced by 50 %. These observations indicate that a P level which produces good growth may not be sufficient for maximum N accumulation. Also, Watanabe (1987) reported that 6 split applications totalling 15 kg P.0. ha. resulted in equivalent growth and N accumulation by . as 6 split appl作者: 租約 時間: 2025-3-26 00:41 作者: 子女 時間: 2025-3-26 06:06
much interest in recent years..Our increased interest in biological nitrogen fixation as a supplementor alternative to nitrogen fertilizers led to the convening of aconsultants‘ meeting on `The Role of Isotopes in Studies on NitrogenFixation and Nitrogen Cycling by Blue-Green Algae and the.A.zolla-Anabaena az978-94-010-4735-7978-94-011-1681-7作者: archenemy 時間: 2025-3-26 11:07 作者: placebo-effect 時間: 2025-3-26 15:17
Isotopic Studies of Azolla and Nitrogen Fertilization of Rice978-94-011-1681-7作者: ATP861 時間: 2025-3-26 17:25
Effects of urea and Azolla on N uptake and yield of rice,ng excess water. An exact amount of N as . can be applied if the material is first air or oven-dried. However, the result of Kumarasinghe et al. (1986) indicate that drying reduces the N availability from . by 30%.作者: arrhythmic 時間: 2025-3-26 21:27 作者: invulnerable 時間: 2025-3-27 03:31
eficiencies. Indeed, 50% of the increase in rice yieldsafter World War II can be attributed to increased fertilizer nitrogenuse. Although an increased rate of fertilizer nitrogen application hasbeen advocated to meet the growing demand for food, it is unrealisticto advise the farmers to apply fertil作者: Left-Atrium 時間: 2025-3-27 08:39 作者: Commodious 時間: 2025-3-27 12:08 作者: forbid 時間: 2025-3-27 14:20
Nitrogen balance studies in ,/rice cropping systems,tilizer N occur under flooded conditions, there is however, little information on the fate of the N which is not recovered by the crop. The primary objective of this experiment is therefore to obtain information on the fate of N which is not taken up by the rice plants.作者: Frequency 時間: 2025-3-27 17:58 作者: Insubordinate 時間: 2025-3-28 01:09 作者: Basilar-Artery 時間: 2025-3-28 02:52 作者: 轎車 時間: 2025-3-28 09:56 作者: 強化 時間: 2025-3-28 12:34
Residual effects of , N to a second crop of rice or wheat,t et al., 1979). Watanabe et al. (1989) reported that losses of .N labelled N after a rice crop was higher from .N labelled urea (20%–30%) than from .N labelled . (0%–11%). Consequently more residual N is expected to be left in the soil following treatment with . than with chemical fertilizers.作者: 周興旺 時間: 2025-3-28 18:29
Use of ,N labelled ammonium sulphate and ,N-labelled urea as a source for labelling , with ,N, technique often had a higher %N than unlabelled . grown in field nurseries with soil-water culture. Also, at the Research Co-ordination Meeting held in December 1984 in Vienna, evidence was presented that urea could inhibit the growth of .. Furthermore, the cost of .N in the chemical form of urea is 2–3 times higher than as ammonium sulphate.作者: KEGEL 時間: 2025-3-28 20:51
Summary and conclusions,United States of America, have collaborated in this 5-year programme. The main goals were to (a) quantify the amount of N. fixed by the . symbiosis, (b) evaluate . as an N source for rice production, and (c) to develop management techniques to integrate . into sustainable rice cropping systems while maintaining high yields.作者: 違法事實 時間: 2025-3-29 00:21
https://doi.org/10.1007/978-94-011-1681-7Ammonium; FAO; algae; cyclin; nitrogen; pollution; soil; wheat作者: Apraxia 時間: 2025-3-29 05:49
978-94-010-4735-7Kluwer Academic Publishers 1993作者: GIBE 時間: 2025-3-29 09:12 作者: FIR 時間: 2025-3-29 15:22 作者: 偽書 時間: 2025-3-29 17:28
Microtechnology and MEMShttp://image.papertrans.cn/t/image/882328.jpg作者: COLIC 時間: 2025-3-29 21:39
