Results 251 to 260 of about 2,920,831 (302)
Some of the next articles are maybe not open access.
Waterlogging and Plant Nutrient Uptake
2010Waterlogging affects several parameters that determine nutrient uptake from the soil by the roots. We checked systematically, for all the relevant parameters in the nutrient uptake model by Silberbush and Barber (Plant Soil 74:93–100, 1983), how waterlogging changes the magnitude of the parameter, changes that can be both positive and negative for ...
Elzenga, J.T.M., van Veen, H.
openaire +2 more sources
Nutrient Requirements of Plants
Nature, 1968Nutrient requirement is a simple and useful concept when used in a qualitative sense, but it is much less satisfactory for quantitative comparisons among organisms. Some of the ambiguities and confusion in the present use of the concept are discussed, and more precise descriptions of the relations between nutrients and growth of plants are proposed.
openaire +2 more sources
Plant hormones and nutrient signaling
Plant Molecular Biology, 2008Plants count on a wide variety of metabolic, physiological, and developmental responses to adapt their growth to variations in mineral nutrient availability. To react to such variations plants have evolved complex sensing and signaling mechanisms that allow them to monitor the external and internal concentration of each of these nutrients, both in ...
Vicente, Rubio +5 more
openaire +2 more sources
Seawater as a Source of Plant Nutrients
Nature, 1968THE use of sea water as a practical growth culture medium and a source of essential nutrients for algae and other plants has been studied. The results obtained, using the green alga Chlorella pyrenoidosa, show that seawater provides a wealth of nutrients and is a cheap nutrient concentrate which when diluted and properly supplemented can support ...
openaire +2 more sources
Plant Nutrients in Organic Farming
2008Effective nutrient management is essential in organic farming systems. Processed soluble fertilisers such as ammonium nitrate, which feed the plant directly and are thought to bypass the natural processes of the soil, are not generally acceptable. Nutrient supply to crop plants is supported through recycling, the management of biologically-related ...
Goulding, K, Stockdale, E, Watson, CA
openaire +2 more sources
Journal of Agronomic Education, 1976
ABSTRACTChanging the expression of P and K in fertilizers from the oxide to the elemental basis has long been considered; all other plant nutrients have been expressed on the elemental basis for many years in most countries. A survey was made to determine the current status of the elemental vs. oxide expression of P and K in the USA.
R. D. Voss +2 more
openaire +1 more source
ABSTRACTChanging the expression of P and K in fertilizers from the oxide to the elemental basis has long been considered; all other plant nutrients have been expressed on the elemental basis for many years in most countries. A survey was made to determine the current status of the elemental vs. oxide expression of P and K in the USA.
R. D. Voss +2 more
openaire +1 more source
Journal of the Science of Food and Agriculture, 1953
Abstract1. The present paper gives a critical re‐examination of different data and conceptions on the action of sodium in relation to deficiency symptoms and yield response.2. The importance of sodium for different agricultural crops is discussed in relation to the replacement of potassium and independent sodium effects.3.
openaire +1 more source
Abstract1. The present paper gives a critical re‐examination of different data and conceptions on the action of sodium in relation to deficiency symptoms and yield response.2. The importance of sodium for different agricultural crops is discussed in relation to the replacement of potassium and independent sodium effects.3.
openaire +1 more source
Nature, 1945
I HAVE recently been attempting a valuation of potential fish production of the banks of the Seychelles-Mauritius arc. The figures following indicate that the suggestion to increase the fertility of suitable parts of the sea by the addition of fertilizers1 is an established process in certain places and circumstances in the ocean.
openaire +1 more source
I HAVE recently been attempting a valuation of potential fish production of the banks of the Seychelles-Mauritius arc. The figures following indicate that the suggestion to increase the fertility of suitable parts of the sea by the addition of fertilizers1 is an established process in certain places and circumstances in the ocean.
openaire +1 more source
Nature, 1944
Two difficulties have been raised by critics of the suggestion that, for the benefit of the fisheries, large-scale addition of plant nutrients to selected parts of the sea may be considered in the future1. The first difficulty concerns the quantities of nutrients required; Michael Graham describes these as "mountainous, nay astronomical"2, and Dr. W. R.
openaire +1 more source
Two difficulties have been raised by critics of the suggestion that, for the benefit of the fisheries, large-scale addition of plant nutrients to selected parts of the sea may be considered in the future1. The first difficulty concerns the quantities of nutrients required; Michael Graham describes these as "mountainous, nay astronomical"2, and Dr. W. R.
openaire +1 more source
Nutrient–hormone relations: Driving root plasticity in plants
Molecular Plant, 2022Nicolaus von Wirén +2 more
exaly