Folia Horticulturae

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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
Agricultural University
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.