anthropologist
发表于 2025-3-30 10:19:59
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Affable
发表于 2025-3-30 12:22:03
Management of fertilizer research data: General concepts,ng efficient use of fertilizers. Although several constraints limit the usefulness of fertilizers, progress has been made through careful experimentation in identifying and removing these constraints. In West Africa, sustainable agriculture is impossible in the absence of fertilizers because of the
Blood-Clot
发表于 2025-3-30 16:34:47
Overcoming soil nutrient constraints to crop production in West Africa: Importance of fertilizers ance, their fertility has become perilously low and the task of increasing or even maintaining the productive capacity of these soils has become perhaps the greatest challenge to agricultural scientists in this latter half of the 20th century..Water is useful not only for the growth of plants but als
性上瘾
发表于 2025-3-30 23:02:25
,Utilisation efficace des engrais azotés pour une augmentation de la production vivrière: L’expérienion with the International Fertilizer Development Center (IFDC). Results show that crop needs for N, P, and S depend on the plant characteristics, climatic and edaphic factors. In Saria, at the northern tip of the Sudan zone, application of 30 kgN/ha, 13.2 kg P/ha and 25 kg K/ha produced the highest
PALL
发表于 2025-3-31 03:46:10
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BRAWL
发表于 2025-3-31 05:31:58
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尽管
发表于 2025-3-31 11:29:21
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artless
发表于 2025-3-31 17:00:24
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interference
发表于 2025-3-31 17:41:55
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progestin
发表于 2025-3-31 22:47:33
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