愤怒历史
发表于 2025-3-28 18:38:15
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割让
发表于 2025-3-28 20:16:30
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同义联想法
发表于 2025-3-29 00:59:05
Plant assimilation and nitrogen cycling,the N-source. There is little information on long-term effects of crop N-nutrition on acidity, and acidity is a critical factor that affects agricultural productivity in many tropical soils. Thus, plant control of pH and the acid/base balance in the soil as a consequence of nitrogen uptake and assimilation are important areas of future research.
间谍活动
发表于 2025-3-29 04:47:24
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专心
发表于 2025-3-29 09:41:12
Simulation of nitrogen in agro-ecosystems: Criteria for model selection and use,f computational facilities, ii) the spatial and temporal scales of application, iii) the intended use of the simulations, iv) the availability of model input data, and v) the confidence regions associated with the model output.
PLAYS
发表于 2025-3-29 12:47:24
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容易生皱纹
发表于 2025-3-29 19:05:46
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phase-2-enzyme
发表于 2025-3-29 21:10:22
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肮脏
发表于 2025-3-30 01:03:09
15N-urea transport and transformation in two deforested Amazonian soils under laboratory conditionss was 91% for the Podzol and 86% for the Latosol. NH..-N from urea hydrolysis was also readily leached and its recovery in the effluent was 4.2% for the Podzol and 11.2% for the Latosol. Very little nitrogen — including exchangeable NH..-N and biomass nitrogen — was left in the columns of either soi
套索
发表于 2025-3-30 05:18:54
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