Comparison with Nutrient Yields between Traditional and Vegetative Productions

Jiang and his coworkers found that protein yield of vegetative production was 420% greater than that of grain production (Jiang et al., 1994), given the same growth and climatic conditions. Similarly, dry matter, fat yield, and mineral gain concentrations such as phosphorus and calcium were much greater for vegetative production than for grain production (Table 2). This large difference can be attributed to weather from late autumn to spring favors vegetative growth in south China where sunshine hours from October to April is only 358 hours for Guiyang and 700 hours for Fuzhou, respectively. Obviously, there is great advantage in vegetative production compare to grain production given this climate.

Table 2. Comparison in harvest of traditional (barley, Hordeum vulgare L., grain) and vegetative (ryegrass, Lolium multiflorum, Lam., shoot system) agricultures

Ryegrass

Barley

Ryegrass/Barley

Organ of harvest

(shoot)

(grain)

(times)

Times of harvesting

2 - 3

1

2.5

Protein yield (kg/ha)

1755.8

334.5

5.2

Fat yield (kg/ha)

460.5

93.0

5.0

Carbohydrate (kg/ha)

5409.0

1947.0

2.8

Calcium (kg/ha)

83.3

5.3

15.9

Phosphorus (kg/ha)

30.6

6.9

4.4

Yield (kg/ha)

7650.0

3000.0

2.55

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