Optimized nitrogen (N) management reduces total N application without sacrificing cropyield. However, the underlining mechanisms have not been well investigated, especially lackingthe evidence from roots. Here we performed a two-year field experiment with maize grownunder zero-N, conventional N and optimized N applications and examined grain yield, N,phosphorous (P) and potassium (K) uptake and...

abstract: nowadays due to developing the information technology, buildings are equipped to this technology in order to reduce energy consumption and make more convenient for inhabitants. the popularity of smart home has been increasing greatly in recent years due to much higher affordability and simplicity through android smartphone connectivity. this paper prepares a review of smart home and h...