Tomato (Lycopersicon esculentum Mill) ‘Trust’ was grown on rockwool with nutrient solutions containing two levels of calcium (150 and 300 mg·L–1) in factorial combination with three levels of magnesium (20, 50, and 80 mg·L–1) in Winters 1997 and 1998, to investigate the effects of calcium and magnesium on growth, biomass partitioning, and fruit production. Plants grown at 20 mg·L–1 Mg started t...

In this study, water and nutrient uptake from the substrate and responses of the crop to fertigation strategies were analysed. In an experiment and simulation study, the amount and frequency of fertigation and electrical conductivity (EC) of the fertigation water were changed for a tomato crop grown on rockwool. In a climate chamber, tomato plants were grown on rockwool while five different EC ...

The oven, in which the diffusion runs were carried out, was built of a vertical glass tube with a Kanthal winding (see Fig. 1). This winding was supplied with some extra terminals; shunting parts of it allowed the temperature to be kept constant (or slightly increasing upwards) over a sufficient length in the oven. The insulation consisted of rockwool, a section of which could be removed tempor...

본 실험은 암면과 코이어 배지의 이용에 따른 토마토의 생육, 생산성 및 품질 비교 재사용암면 이용가능성을 알아보기 위해 경북 안동시에 위치한 안동대학교 생명과학대학 자동제어온실에서 진행되었다. 실험결과 엽수, 초장, 엽면적은 처리간 차이가 없었으며 줄기직경은 암면배지에서 약간 높은 경향을 보였지만 코이어배지간의 차이는 없었다. 과실생산성은 기상 조건에 따라 상이한 반응을 보였지만, 암면, 큰 차이를 보이지 않았다. 또한 과실의 품질은 배지 내 EC의 농도에 보였다. 따라서, 수경재배에서 생육 과실품질은 종류에 대한 환경 급액관리에 영향이 컸다. 실험을 통해 토마토 생육단계별 적정 수분관리기술이 적용된다면 암면의 재사용에 경제성 향상에 기여될 수 있을것으로 판단된다.

Greenhouse tomato growers in the United States have few products available for chemical control of plant pathogens. Biological control of soilborne plant pathogens by antagonistic microorganisms is a potential alternative to the use of chemical pesticides during greenhouse production. Biological control experiments were conducted to test the effects of commercial and noncommercial strains of Tr...

The development of technology in agriculture is currently speedy, with innovations that can increase the production and quality agricultural products. Supporting hydroponic cultivation system's success by applying porous well-aerated media availability sufficient nutrients for plant growth production. Rockwool difficult to obtain 50 Kota Regency. It needs utilize local potential as a planting m...