It has become clear as the result of the pioneering studies of Northrop on transcarboxylase (l), and the later studies in Lardy’s (2) and Utter’s (3) laboratories on pyruvate carboxylase that biotin-containing enzymes have two-site ping-pong mechanisms in which biotin is carboxylated at one site, and in turn carboxylates a substrate at the second site. The rate equations for such mechanisms hav...

A field study was conducted to investigate the influence of spacing and nutrition on soil nutrient status Uptake Broccoli investigation titled "Effect uptake Broccoli." The experiment consists 3 limits i.e., S1 (45x30 cm), S2 (45x45 S3 (60x45 cm) N1 (100 percent recommended dose nutrients), N2 (75 N3 (125 nutrients). It designed in FRCBD includes nine treatment combinations with three replicati...

Nitrogen fertilizer and planting density are key factors affecting rice yield nitrogen utilization efficiency. There is still a need to optimize management for high yield. We studied the effects of different quantities application (N0 0 kg ha−1, N1 120 N2 180 ha−1) (low-density: 18.8 hills m−2; high-density: 37.5 m−2) on yield, photosynthetic characteristics, antioxidant system, use ANOVA resul...

concerns about nitrate pollution in groundwater and downstream systems cause development of surface water management system to reduce losses of agricultural drainage water nitrate in subsurface drainage using subsurface irrigation from existing drainage lines, drainage water during the growing season and out of season is controlled. the overall objective of this study was to evaluate the effect...

A variable rate fertilizer system was developed for control of fertilizer amount by optical sensor measured NDVI of crop. The paper analyzes the input and output conditions of control system, and designed hardware, algorithm and control of fertilizer, mainly software flow and a feedback control way. In the paper, the variable-rate control system consisted of 6 optical sensors mounted on a boom ...

Precision agriculture is the developing trend of modern agriculture, and the rational utilization of fertilizer is one of the key technologies in the precision agriculture, which needs to fertilize variably according to the crop needs and soil fertility conditions. Thus a fertilizer automated proportioning equipment is developed to Proportion the three fertilizers: Nitrogen fertilizer, Phosphor...

C3–N1′ bond formation of bisindoles has been a great challenge due to the intrinsic reactivity indoles as both C3 and N1-nucleophilic character. Herein, we demonstrate an cross-coupling reaction using N-methoxyindoles N-electrophilic indole reagents in presence Lewis acid. The generated this transformation are latent C3-nucleophile, allowing them be used strategic intermediates sequential C3–N1...