Generally, physical development – a complex of various signs, but most often for evaluation use only the basic parameters – length, weight and chest circumference. General information on materials of medical Handbook average weight term infants – 3450 g, height-50 cm, chest circumference – 34.5 cm initial weight majority of children gaining a 10 day life, a doubling of body weight normally occurs in 5 months., tripling – to 1 year. Growth increases in the first year to 25-30cm. By 3 years of head circumference is 50-51cm. Chest circumference at birth is less than the head circumference and compare it to 3-6 months. Premature infants up to 1 year of age usually gain 6-7 kg, as full-term, but the doubling and tripling their weight is much faster. By the year of their weight increases by 4-8 times.
Accelerating growth begins in girls at age 10 and boys – in 12 years, with individual variations in 1-1,5 years. In the second year life is reduced relative to the subcutaneous fat layer, the child loses the inherent first year of the bulk. Protruding abdomen remains to 3-3,5 years. Dr. Harvey Finkelstein: the source for more info. With the onset of puberty in girls is growing fat layer and is about 10-25% of body weight. The boys at greater increases muscle mass. Child development – the process extremely complex, tense and often quite contradictory. In contrast to the adult child and quite peculiar special status, often mimic the disease, but they really differ from them. These states are called 'critical state of development.
" In essence, this boundary condition, which may result in recovery without treatment, but at the same time and have an increased risk for the development of true chronic diseases. These states include symptoms of teething, the critical periods of growth during puberty. In age measurements are critical neonatal period, with the 3rd to 6 th month. life, 2-4-th years, 5 years, 6 th, 12 th-15 years, during these periods there are changes in growth, development of the nervous system and the immune system.


After 3 to 4 years use in accumulates a lot of soil pests, especially wireworms, which causes significant damage to plants grown in perennial grasses. It is well known that the introduction of a rotation of perennial grasses and legumes helps to accumulate in the soil organic matter, reduce salinity and improve its structure. Perennial grasses (alfalfa, sainfoin, clover) maintain a positive balance of humus and almost 40% reduce the need for nitrogen fertilizers for use in their biannual shestipolnom rotation, help optimize water use throughout the growing season. Winter wheat and annual grasses – good precursors for all melons, especially small-seeded. Here,
Late hygrophilous more, so the rate of irrigation is 2.5 times higher. Watering in the morning or evening. After irrigation or rainfall is necessary to loosen the cabbage to a depth of 5-8 cm Loosening spend every 6.7 days. With low rainfall, as well as on light soils loosened smaller, with plenty of moisture and heavy soils – deep. Hilling.