Long-term nitrogen fertilizer management for enhancing use efficiency and sustainable cotton ( L.).

Optimal management of nitrogen fertilizer profoundly impacts sustainable development by influencing nitrogen use efficiency (NUE) and seed cotton yield. However, the effect of long-term gradient nitrogen application on the sandy loam soil is unclear. Therefore, we conducted an 8-year field study (2014-2021) using six nitrogen levels: 0 kg/hm (N0), 75 kg/hm (N1), 150 kg/hm (N2), 225 kg/hm (N3), 300 kg/hm (N4), and 375 kg/hm (N5).

Source-Sink Manipulation Affects Accumulation of Zinc and Other Nutrient Elements in Wheat Grains.

To better understand the source-sink flow and its relationships with zinc (Zn) and other nutrients in wheat ( L.) plants for biofortification and improving grain nutritional quality, the effects of reducing the photoassimilate source (through the flag leaf removal and spike shading) or sink (through the removal of all spikelets from one side of the spike, i.e.