The Green Revolution of the 1960s improved crop yields in part through the widespread
cultivation of semidwarf plant varieties, which resist lodging but require a high-nitrogen (N) …

Contents Summary 35 I. Introduction 35 II. Nitrogen acquisition and assimilation 36 III. Root‐
to‐shoot transport of nitrogen 38 IV. Nitrogen storage pools in vegetative tissues 39 V …

Modern agriculture relies on mineral fertilization. Unlike other major macronutrients,
potassium (K+) is not incorporated into organic matter but remains as soluble ion in the cell …

Ammonium is a major inorganic nitrogen source for plants. At low external supplies,
ammonium promotes plant growth, while at high external supplies it causes toxicity …

Application of chemical fertilizers, especially nitrogen (N), to crops has increased
dramatically in the last half century and therefore developing crop varieties with improved N …

Background Productive agriculture needs a large amount of expensive nitrogenous
fertilizers. Improving nitrogen use efficiency (NUE) of crop plants is thus of key importance …

Background Nitrogen (N) is one of the key mineral nutrients for plants and its availability has
a major impact on their growth and development. Most often N resources are limiting and …

Nitrogen is the mineral nutrient that often limits plant growth and development. In response
to changes in nitrogen supply, plants display elaborate responses at both physiological and …

Nitrogen (N) is the main mineral element in plant tissues and almost all of this nutrient is
acquired from the soil by the roots. Nitrogen is available in many different forms in the soil …

Potassium (K+) and nitrogen (N) are essential nutrients, and their absorption and distribution
within the plant must be coordinated for optimal growth and development. Potassium is …