jabber
发表于 2025-3-23 10:13:13
Book 1997agement. In this way economic benefits can be obtained, while at the same time preventing detrimental effects on the environment. The main agricultural crops - grasses, wheat, barley, Durum wheat, maize, sorghum, grain legumes and potatoes - are covered. The book will be an invaluable source for agronomists.
难管
发表于 2025-3-23 14:17:19
gricultural crops - grasses, wheat, barley, Durum wheat, maize, sorghum, grain legumes and potatoes - are covered. The book will be an invaluable source for agronomists.978-3-642-64506-8978-3-642-60684-7
群居男女
发表于 2025-3-23 21:54:20
ition. It shows how these can be applied in order to assess the nitrogen status in crops and to improve nitrogen nutrition through optimized N fertilization management. In this way economic benefits can be obtained, while at the same time preventing detrimental effects on the environment. The main a
CAMP
发表于 2025-3-23 22:42:21
Helge Refsum,Ilmar A. Sulg,Knut Rasmussen of energy intercepted by the crop. However, to ensure that this potential yield is reached, the N inputs are often higher than the minimum required for maximum crop growth: this is particularly true because N fertilizers are relatively cheap compared to the expected economic benefits from a maximized crop yield.
演讲
发表于 2025-3-24 05:53:09
Heart Disease Diagnosis and Therapysection is to give some examples of the advantage of using such an indicator of crop N status for the analysis and interpretation of agronomical data, derived either from experiments or from onfarm surveys.
exostosis
发表于 2025-3-24 06:47:43
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Common-Migraine
发表于 2025-3-24 11:41:38
Michael M. Kreusser,Philip W. Raakethe determination of crop mass can be easily made, but it cannot be considered as an operational tool for crop diagnosis. It therefore seems necessary to determine effective and simple procedures for the diagnosis of crop N status which do not require a determination of crop mass, but which are closely related to the NNI of the crop.
招待
发表于 2025-3-24 15:08:42
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中古
发表于 2025-3-24 22:21:54
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易弯曲
发表于 2025-3-25 02:35:55
https://doi.org/10.1007/978-4-431-68331-5l plant N% vs. plant mass relationship for this crop despite the fact that tuber filling dominates the plant growth process. The data used in this chapter have been obtained in several experiments, which are summarized in Table 7.1.