Inorganic plant nutrition. Encyclopedia of Plant Physiology, New Series

John Lloyd Williams was an authority on the arctic-alpine flora of Snowdonia during the late nineteenth century when plant collecting was at its height, but unlike other botanists and plant collectors he did not fully pursue the fashionable trend of forming a complete herbarium. His diligent plant-hunting in a comparatively little explored part of Snowdonia led to his discovering a new site for the rare Killarney fern (Trichomanes speciosum), a feat which was considered a major achievement at the time. For most part of the nineteenth century plant distribution, classification and forming herbaria, had been paramount in the learning of botany in Britain resulting in little attention being made to other aspects of the subject. However, towards the end of the century many botanists turned their attention to studying plant physiology, a subject which had advanced significantly in German laboratories. Rivalry between botanists working on similar projects became inevitable in the race to be first in print as Lloyd Williams soon realized when undertaking his major study on the cytology of marine algae.

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Abiotic Stresses in Agroecology: A Challenge for Whole Plant Physiology

10.3389/978-2-88945-204-0 ◽

2017 ◽

Keyword(s):

Plant Physiology ◽

Abiotic Stresses ◽

Whole Plant

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SIGNIFICANT HEMOSTATIC VASCULAR ACTIVITY IN PIGLETS AT THE ONTHOGENIC PHASE OF PLANT NUTRITION

Sel skokhozyaistvennaya Biologiya ◽

10.15389/agrobiology.2013.2.88eng ◽

2013 ◽

pp. 88-92 ◽

Cited By ~ 1

Author(s):

E.G. Krasnova ◽

◽

I.N. Medvedev ◽

Keyword(s):

Plant Nutrition ◽

Vascular Activity

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Influence of NPK fertilization on weed flora in maize field

Agrokémia és Talajtan ◽

10.1556/agrokem.63.2014.1.15 ◽

2014 ◽

Vol 63 (1) ◽

pp. 139-148 ◽

Cited By ~ 1

Author(s):

Éva Lehoczky ◽

M. Kamuti ◽

N. Mazsu ◽

J. Tamás ◽

D. Sáringer-Kenyeres ◽

...

Keyword(s):

Plant Nutrition ◽

Crop Production ◽

N Availability ◽

Weed Species ◽

Negative Effects ◽

Production Factors ◽

Maize Field ◽

Weed Flora ◽

Npk Fertilization

Plant nutrition is one of the most important intensification factors of crop production. The utilization of nutrients, however, may be modified by a number of production factors, including weed presence. Thus, the knowledge of occurring weed species, their abundance, nutrient and water uptake is extremely important to establish an appropriate basis for the evaluation of their risks or negative effects on crops. That is why investigations were carried out in a long-term fertilization experiment on the influence of different nutrient supplies (Ø, PK, NK, NPK) on weed flora in maize field.The weed surveys recorded similar diversity on the experimental area: the species of A. artemisiifolia, S. halepense and D. stramonium were dominant, but C. album and C. hybridum were also common. These species and H. annuus were the most abundant weeds.Based on the totalized and average data of all treatments, density followed the same tendency in the experimental years. It was the highest in the PK treated and untreated plots, and significantly exceeded the values of NK fertilized areas. Presumably the better N availability promoted the development of nitrophilic weeds, while the mortality of other small species increased.Winter wheat and maize forecrops had no visible influence on the diversity and the intensity of weediness. On the contrary, there were consistent differences in the density of certain weed species in accordance to the applied nutrients. A. artemisiifolia was present in the largest number in the untreated control and PK fertilized plots. The density of S. halepense and H. annuus was also significantly higher in the control areas. The number of their individuals was smaller in those plots where N containing fertilizers were used. Contrary to them, the density of D. stramonium, C. album and C. hybridum was the highest in the NPK treatments.

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Seasonal effects on grain yield of long-term plant nutrition experiments at Keszthely, Hungary

Cereal Research Communications ◽

10.1556/crc.34.2006.1.38 ◽

2006 ◽

Vol 34 (1) ◽

pp. 151-154 ◽

Cited By ~ 2

Author(s):

Katalin Debreczeni ◽

Sándor Hoffmann ◽

Katalin Berecz

Keyword(s):

Grain Yield ◽

Plant Nutrition ◽

Seasonal Effects

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