Effects of Seedling Age, and Different Levels of N, K and K/N on Quality and Yield of Tomato Grown in Perlite Bag Culture

Abstract

The object of the study was to investigate the effects of seedling age, and different levels of N, K and K/N on growth and yield of tomato grown in perlite bag culture. Seeds of Big Boy F1 sown in perlite and subsequently seedlings were planted in ten-liter PE bag filled with coarse perlite. Four fertigation regimes were applied to the plants concerning four N (103, 110, 113 and 120 mg/l), four K (186, 195, 258 and 275 mg/l) and two K/N (1,6 and 2,5) levels. Thrace element levels were the same for all the gertigation regimes. Seedling were planted at three different growth stages; 1)appearence of first inflorescence, 2)50% flower opening on first cluster and 3)fruit set on first cluster. Altough effects of seedling age on total, marketable and early yield, and cracking and Blossom-end rot occurrence were not statistically significant, total, marketable and early yield were higher when the seedling were planted at the time of fruit set on first cluster. The highest total, early and marketable yields were obtained from the transplants planted at fruit set on first truss with FR1 (plants were fertigated with the high K/N starter solution: K/N= 2,5; 110 mg l-1 N and 275 mg l-1 K until the fruits on the first truss reached 2cm in diameter, then with the low K/N mainfed solution; K/N= 1,6; 120 mg l-1 N and 195 mg l-1 K for the rest of the vegetation).

Keywords

• Seedling age
• K/N ratio
• soilless culture
• tomato
• nitrogen

Perlit Torbalı Kültürde Yetiştirilen Domateslerin Fidelik Yaşı ve Farklı N, K ve K / N Seviyelerinin Domateslerin Kalite ve Verimi Üzerine Etkileri

Abstract

Çalışmanın amacı, perlit tohum kültüründe yetiştirilen domatesin yetiştirme ve verimi üzerine fide yaşı ve farklı N, K ve K / N seviyelerinin etkilerini araştırmaktır.

Keywords

• K / N oranı
• topraksız kültür
• domates
• azot

References

1. Day, D. 1991. Tomatoes. Grower Digest 9, Grower Publications Ltd., London.
2. Vavrina, C.S. 1991. Effect of transplant age on tomato production. Proc. Fla. State Hort. Soc., 104:225-226.
3. Vavrina, S.C., M.D. Orzolek, 1993. Tomato transplant age: A review. HortTechnology, 3(3):313-316.