標題: Titlebook: Management of Nitrogen and Phosphorus Fertilizers in Sub-Saharan Africa; Proceedings of a sym A. Uzo Mokwunye (Soil Scientist),Paul L. G. V [打印本頁] 作者: Roosevelt 時間: 2025-3-21 16:30
書目名稱Management of Nitrogen and Phosphorus Fertilizers in Sub-Saharan Africa影響因子(影響力)
書目名稱Management of Nitrogen and Phosphorus Fertilizers in Sub-Saharan Africa影響因子(影響力)學(xué)科排名
書目名稱Management of Nitrogen and Phosphorus Fertilizers in Sub-Saharan Africa網(wǎng)絡(luò)公開度
書目名稱Management of Nitrogen and Phosphorus Fertilizers in Sub-Saharan Africa網(wǎng)絡(luò)公開度學(xué)科排名
書目名稱Management of Nitrogen and Phosphorus Fertilizers in Sub-Saharan Africa被引頻次
書目名稱Management of Nitrogen and Phosphorus Fertilizers in Sub-Saharan Africa被引頻次學(xué)科排名
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書目名稱Management of Nitrogen and Phosphorus Fertilizers in Sub-Saharan Africa年度引用學(xué)科排名
書目名稱Management of Nitrogen and Phosphorus Fertilizers in Sub-Saharan Africa讀者反饋
書目名稱Management of Nitrogen and Phosphorus Fertilizers in Sub-Saharan Africa讀者反饋學(xué)科排名
作者: 侵略者 時間: 2025-3-21 20:15 作者: 滔滔不絕地說 時間: 2025-3-22 02:30
Fertility of soils of tropical Africa: a historical perspective,Because parent materials in tropical Africa are not uniformly distributed and the climate is diverse, inherent fertility of the soils varies considerably. Because of intensive leaching and the degree of weathering, many soils of tropical Africa have relatively low inherent fertility.作者: 神刊 時間: 2025-3-22 07:00 作者: 先兆 時間: 2025-3-22 09:52 作者: 不給啤 時間: 2025-3-22 14:34 作者: 安裝 時間: 2025-3-22 19:33 作者: Parabola 時間: 2025-3-22 21:30 作者: 流利圓滑 時間: 2025-3-23 03:55 作者: animated 時間: 2025-3-23 07:21 作者: 使高興 時間: 2025-3-23 11:47
Biological nitrogen fixation and soil fertility maintenance,rge quantities by growing plants and is indeed the key to soil fertility. NonN.-fixing plants—for example, cereals—take all the N they need from the soil. In Senegalese conditions this uptake was estimated to be as follows: 79–132 kg N/ha/crop for pearl millet; 74–84 for rice; 134 for sorghum; and 1作者: 拖債 時間: 2025-3-23 14:50
Management of nitrogen fertilizers for tropical African soils,he degree to which the soil fertility is maintained. Nitrogen, the most mobile plant nutrient, is the most easily exhaustible nutrient element in the soil. This is particularly true in the fragile, poorly buffered soils commonly found in tropical Africa. Traditional farmers in Africa found adequate 作者: Magisterial 時間: 2025-3-23 20:02
Phosphate deposits of tropical sub-Saharan Africa,pulation approaching 500 million. From north to south in a straight line, the maximum distance is about 8,000 km, and from east to west it is about 7,200 km. Although the equator cuts almost exactly midway across the continent, with about two-thirds of the total area lying between the Tropics of Can作者: Gustatory 時間: 2025-3-24 01:36 作者: PRO 時間: 2025-3-24 06:02
Agronomic evaluation of phosphate fertilizers in tropical Africa,orts have been made to (1) assess the extent of phosphorus deficiency in the soils [13,27,36,35,14,17], (2) estimate the phosphorus requirements of major food crops [10,11,19,28,22,31], and (3) evaluate the agronomic potential of various phosphate fertilizers including phosphate rock from local depo作者: Bridle 時間: 2025-3-24 09:04
Economic evaluation of alternative fertilizer technologies for tropical African agriculture,of various inputs or factors of production. The management and levels of use of these inputs depend upon the soil-agroclimatic and market (prices) environments and the crop production technology. Farmers’ decisions on the use of these inputs reflect their economic motivation in the face of physical 作者: VEN 時間: 2025-3-24 12:04 作者: 加強防衛(wèi) 時間: 2025-3-24 15:19 作者: BRIBE 時間: 2025-3-24 19:52
John Mclntireodernité: la . avec ses évidences na?ves et traditionnelles, la ., et la . et son .. Procès à double visée au cours duquel, d’une part, la raison positiviste et objectiviste moderne est mise en accusation pour avoir manqué sa vocation de donner sens à la totalité de Pexistence humaine, et d’autre pa作者: 畸形 時間: 2025-3-25 02:56
H. Ssali,P. M. Ahn,A. Mokwunyeodernité: la . avec ses évidences na?ves et traditionnelles, la ., et la . et son .. Procès à double visée au cours duquel, d’une part, la raison positiviste et objectiviste moderne est mise en accusation pour avoir manqué sa vocation de donner sens à la totalité de Pexistence humaine, et d’autre pa作者: FLING 時間: 2025-3-25 06:00 作者: Anthropoid 時間: 2025-3-25 08:34 作者: Spangle 時間: 2025-3-25 13:56 作者: crumble 時間: 2025-3-25 19:51
G. H. McClellan,A. J. G. Notholtin der ?Freien literarischen Gesellschaft? und ihr Organ in der, abwechselnd und gleichzeitig von Leo Berg, Heinrich Hart, Joh. G. Sallis[1] und E.M. Kafka[2], von denen zuletzt nur noch Leo Berg und Joh. G. Sallis nachgeblieben sind, herausgegebenen und redigirten Halbmonatsschrift ?Die Moderne?. D作者: JIBE 時間: 2025-3-25 23:53 作者: 符合國情 時間: 2025-3-26 01:15
itution within the geneses of perceptual sense.. These clues may be considered as perceptual Schemata or sets of rules in which the perceptual characterization of senses may be formulated. These perceptual Schemata within passive syntheses of perception at the foundation of categorial judgments prod作者: 我邪惡 時間: 2025-3-26 07:51 作者: 冷淡周邊 時間: 2025-3-26 11:03
John Mclntireenaire muet“ figurant ?l’expérience encore muette“ du monde. qui s’exprime déjà mais ne parle pas d’elle-même. Sa voix étouffée sous les clameurs de la science positive et technicienne moderne se voit alors rétablie dans ses droits, la raison philosophique jouant à son égard le r?le de ?tuteur“ qui 作者: 神秘 時間: 2025-3-26 14:32 作者: Eclampsia 時間: 2025-3-26 20:22
B. T. Kangagen des Zweifels und der Unruhe, da die alte Religion zahllosen Seelen keinen Frieden mehr gew?hrt, und statt neuen Trostes nur neue Stürme drohen, in diesen Tagen hat die Poesie mehr als sonst zu leisten. Freilich nicht an die Stelle treten der Religion, diese ersetzen soll sie, wol aber mu? auch 作者: 休戰(zhàn) 時間: 2025-3-26 22:52 作者: 一瞥 時間: 2025-3-27 04:19 作者: defeatist 時間: 2025-3-27 09:07
G. H. McClellan,A. J. G. Notholtnd Rückenmarksschwindsucht und des russisch-nihilistischen Naturalismus, speculirte in der Hauptsache auf das Sensationsbedürfni? und die niedrigsten Instinkte der kosmopolitischen Gro?stadt-Leserwelt und ist in jüngster Zeit, als der Inhalt seine Zugkraft selbst auf die überreizte Berliner Mischpok作者: white-matter 時間: 2025-3-27 10:36 作者: BLAND 時間: 2025-3-27 16:49
Phosphate deposits of tropical sub-Saharan Africa,ferred to are also landlocked; striking examples are Burkina Faso, Mali, Chad, Niger, and, in southern Africa, Burundi, Uganda, Malawi, Rwanda, Zambia, and Zimbabwe. There is a remarkably smooth coastline, with an almost uniformly narrow continental shelf, a feature that reduces the chances of disco作者: 護航艦 時間: 2025-3-27 20:01
Conference proceedings 1986duction in the humid, subhumid, and semiarid tropics of Africa. The results of this project were summarized during a workshop held in Togo, March 25-28, 1985; the proceedings of that meetings are found in this vol- ume. The project established collaboration with numerous national programs that were 作者: rods366 時間: 2025-3-27 23:33 作者: galley 時間: 2025-3-28 04:25 作者: Femish 時間: 2025-3-28 09:39 作者: folliculitis 時間: 2025-3-28 11:23 作者: SMART 時間: 2025-3-28 17:39
e, agriculturalists around the world reawaken to the challenge of ensuring sta- ble, adequate food production in the tropical African environments. The International Fertilizer Development Center (IFDC), with its mandate of alleviating food shortages through judicial use of fertilizers, formulated a作者: Encapsulate 時間: 2025-3-28 21:32
Conference proceedings 1986turalists around the world reawaken to the challenge of ensuring sta- ble, adequate food production in the tropical African environments. The International Fertilizer Development Center (IFDC), with its mandate of alleviating food shortages through judicial use of fertilizers, formulated a program t作者: 悲觀 時間: 2025-3-29 01:13 作者: Estimable 時間: 2025-3-29 06:27 作者: Canary 時間: 2025-3-29 09:58 作者: Middle-Ear 時間: 2025-3-29 13:27 作者: harbinger 時間: 2025-3-29 18:35
