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Effects of seed irradiation with laser on the yield and chemical composition of sugar beet roots

100%

Wojcik S.

International Agrophysics

1994

tom 08

nr 3

The effect of nitrogen and boron fertilization on poppy (Papaver somniferum L.) yield and composition

84%

Losak T., Richter R., Hlusek J.

Zeszyty Problemowe Postępów Nauk Rolniczych

2004

tom 502

nr 2

Effects of two doses of nitrogen (0.6 and 0.9 g N·pot⁻¹) in combination with foliar application of boron (10 mg B·pot⁻¹) and two levels of P and K were studied in a pot experiment with poppy plants (Papaver somniferum L.). After the application of boron, a marked increase of its concentration in plants (112-126 mg·kg⁻¹) was observed. As compared to variants without boron, higher B concentrations were found in variants with the supply of this element within the whole course of growing season. Concentration of nitrogen decreased boron content during growing season due to a dilution effect. However, there were no grater differences among individual variants. In combination with increased levels of N, P, K, the application of B on leaves increased the seed yield by 6.4% and decreased production of straw by 6.7% as compared to controls without supply of this element. This fact was manifested also in the narrowest straw/seeds ratio. The volume of one capsule ranged in individual variants from 13.1 to 16.6 ml per plant but without any direct dependence on seed yield. The application of boron was manifested only in combination with increased levels of N, P, K. Concentrations of morphine in straw (empty heads + 15 cm of stem) increased with the increasing supply of nitrogen from 0.40 to 0.49%. The effect of boron supply was not marked too much.

Ograniczanie wyników

1 International Agrophysics

1 Zeszyty Problemowe Postępów Nauk Rolniczych

1 Hlusek J.

1 Losak T.

1 Richter R.

1 Wojcik S.

1 2004

1 1994

Wyniki wyszukiwania

Effects of seed irradiation with laser on the yield and chemical composition of sugar beet roots

The effect of nitrogen and boron fertilization on poppy (Papaver somniferum L.) yield and composition