Effect of growing methods of New Zealand spinach on its yield and pattern of harvests
Waldemar Kmiecik, Grażyna Jaworska
Department of Raw Materials and Processing of Fruit and Vegetables
Podłużna 3, 30-239 Kraków, Poland
In the years 1995-1997 characterized by a great variability of temperature
and atmospheric precipitation, the yields of New Zealand spinach grown from seedlings or from direct sowing were compared. In the two methods of
growing the density of 24 plants/1 m2 was used.
When using seedlings yielding lasted 81-96 days with 4-5 harvests while with direct sowing 3-4 harvests
were carried out during 63-89 days. In seedling culture the first harvest
took place 14-29 days earlier. It was evidenced that in the climatic
conditions of southern Poland high yields of New Zealand spinach were
obtained even in extremely unfavourable seasons. The 3-year averages of
the total yield, commercial yield, i.e. the yield of stems with leaves up
to 15 cm in length, and that of leaf blades alone were 70.5, 65.6, and
47.5 t ha-1, respectively, in the case of seedlings and 66.0,
62.9, and 46.3 t ha-1 with the direct sowing method. No
statistically significant differences were found between the yields from
the two growing methods. The content of dry matter was 5.90 g/100 g in
whole plants and 6.19 g/100 g in leaf blades. The content of ash
constituents was 1.44 and 1.43 g/100 g, respectively.
Kmiecik W., Jaworska G., 1999. Effect of growing methods of New Zealand spinach on its
yield and pattern of harvest. Folia Horticulturae 11/1: 75-85.