منابع مشابه
Pii: S1161-0301(00)00074-5
This paper proposes a stochastic application of a deterministic model (LEACHN) with the aim of forecasting the probability of exceeding given nitrate leaching levels for different cropping systems and soil hydrological characteristics. The understanding of the level of probability associated to the prediction of leaching is an important criteria for the judgement of cropping systems. After cali...
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distance, in noninfected organs. infected B cells influence T cells located at draining the site of inoculation, and the Murine AIDS is initiated in the lymph nodes
متن کاملPii: S1161-0301(00)00079-4
A precise prediction of the yield losses inflicted by weeds is the basis of decisions in weed management. Hitherto, only rough estimates, which neglect the specific production situation, have been available for vegetable crops. In this study a simple simulation model was developed to estimate yield loss by radiation competition as a function of environmental variables. In the model, the distrib...
متن کاملPii: S1161-0301(00)00055-1
The effects of soil drying on leaf water relations and gas exchange were studied in quinoa grown in pots with sandy soil and in lysimeter plots with sandy loam in the field. Midday values of leaf water potential (cl), leaf osmotic potential (cp), relative water content (RWC), leaf conductance (gl), light saturated net photosynthesis (Asat), and specific leaf area (SLA) were determined in fully ...
متن کاملPii: S1161-0301(00)00068-x
The release of nitrogen by roots of intact spring wheat plants into the soil and other losses, mainly of volatile N, have been investigated in two subsequent years from tillering until maturation, by use of a new technique for plant labelling with N. Plants were at first labelled by growing them in a N nutrient solution until tillering and then after thoroughly washing the roots with distilled ...
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ژورنال
عنوان ژورنال: Synthesis
سال: 2001
ISSN: 0039-7881,1437-210X
DOI: 10.1055/s-2001-11439