Stage of growth

Fig. 2. Vapour-grown carbon fiber. showing relatively early stage of growth at the tip the seeded Fe catalytic particle is encapsulated.

Salter, P.J. Goode, J.E. (1967). Crop responses to water at different stages of growth. Commonwealth Agricultural Bureau Research Review 2. East Mailing CAB. 

The nucleation stage is followed by two different kinetic regimes of cluster growth (i) a diffusional one (occurring at the earlier stage of growth) which is characterized by a time dependence of cluster radius scaling as where... 

Spray volume should be based on the stage of growth of the plant. Spray volume is calculated based on plot size shape and stage of growth of the crop. 

For the control of locusts, grasshoppers, and crickets, 2 to 4 ounces of aldrin per acre, applied as a spray to host crops, yield highly effective results. The 4-ounce dosage is necessary under adverse control conditions such as prevail where vegetation is dry and most of the insects are in advanced stages of growth (9). 

A mechanism which proceeds through surface reconstruction of the substrate has been identified for Ni deposition on Au(lll) [120, 121]. The process begins with place exchange of nickel into a particular position in the reconstructed Au(lll) surface, followed by deposition of Ni islands on top of the imbedded atom. At higher overpotentials, nucleation occurs instead at step edges, so that control of the potential allows control of the nucleation process and the distribution of Ni in the early stages of growth. In this instance, the nucleation process has been captured by STM on the atomic scale. 

The balance between excess and insufficient zinc is important. Zinc deficiency occurs in many species of plants and animals, with severe adverse effects on all stages of growth, development, reproduction, and survival. In humans, zinc deficiency is associated with delayed sexual maturation in adolescent males poor growth in children impaired growth of hair, skin, and bones disrupted Vitamin A metabolism and abnormal taste acuity, hormone metabolism, and immune function. Severe zinc deficiency effects in mammals are usually prevented by diets containing >30 mg Zn/kg DW ration. Zinc deficiency effects are reported in aquatic organisms at nominal concentrations between 0.65 and 6.5 pg Zn/L of medium, and in piscine diets at <15 mg Zn/kg FW ration. Avian diets should contain >25 mg Zn/kg DW ration for prevention of zinc deficiency effects, and <178 mg Zn/kg DW for prevention of marginal sublethal effects. 

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