In the heart of Thailand's tropical climate, where temperatures soar and the rainy season looms, the art of greenhouse cultivation takes on a unique challenge. Take Me Home Tomato, a pioneering company in the field, has mastered the secrets to maintaining consistent production despite the harsh conditions. Their journey is a testament to the power of innovation and adaptation, offering valuable insights for growers worldwide. What makes their story particularly captivating is the meticulous attention to detail and the strategic decisions that have propelled their success.
One of the key challenges in tropical greenhouse management is the extreme heat. Take Me Home Tomato's CEO, Menno Keppel, reveals that temperatures regularly exceed 36°C before the rainy season, posing a significant threat to plant health. To combat this, they have embraced grafting as a controlled process, ensuring plants recover inside humidity tents where temperatures can soar to over 40°C. The critical aspect here is the timing of opening the tents, striking a delicate balance between fresh air and humidity to facilitate successful healing.
The company's journey with grafting was not without initial setbacks. Menno acknowledges that significant plant losses occurred, but through refining nursery protocols, they have achieved remarkable consistency. The grafting process itself is straightforward, but the real challenge lies in keeping plants alive during the critical first week. This experience has instilled in them a deep understanding of the importance of nurturing young plants.
A game-changer for Take Me Home Tomato was the introduction of supplemental LED lighting in the greenhouse nursery. Seasonal variations in natural light had previously led to uneven plant growth, making it difficult to match rootstocks and scions throughout the year. By adding Philips LED lighting, even at relatively low levels, they witnessed a transformation. Plants stretched less during low-light periods, recovered faster after grafting, and the success rate soared to around 95%.
Take Me Home Tomato's propagation protocol has also been refined. They discovered that delaying topping until plants are more established yields better results, allowing for the production of two or three strong heads depending on the variety. This strategic adjustment has further enhanced their productivity.
Substrate choice has played a pivotal role in their success. The company moved from coco substrates to Grodan stone wool, which they believe provides superior dry-back management and more consistent nutrient availability. This shift has led to earlier harvests and improved fruit quality, as they can maintain a higher and more consistent EC. The use of GroSense also provides valuable data, enabling more precise crop steering and plant manipulation.
Adapting greenhouses for seasonal extremes is another critical aspect of their strategy. Thailand's six-month rainy season demands a delicate balance between high temperatures and increasing humidity while maintaining plant health. Take Me Home Tomato's OptiClima greenhouses employ external shading to reduce solar radiation without compromising natural ventilation. This innovative approach allows them to maximize available light during the morning and afternoon while deploying outside screens when greenhouse temperatures exceed 29°C, effectively reducing temperatures by 5 to 9°C without the need for active cooling.
For nursery production, Take Me Home Tomato recommends additional shading and high humidity during graft healing. They utilize products like ReduSol or ReduHeat, install shading, and increase humidity through floor wetting or fogging. These measures create an optimal environment for plant recovery and growth.
Looking ahead, Menno Keppel foresees a shift in the industry towards naturally ventilated greenhouses better suited to tropical conditions. Growers are increasingly adopting external shading and reflective coatings to reduce peak light intensity and lower plant stress. The value of high-quality propagation material is also being recognized, as better young plants translate into superior crop performance.
In Menno's opinion, precision irrigation and improved access to technical knowledge will have the most significant impact on productivity. Collecting data is the first step, enabling growers to understand the inner workings of their greenhouses. Combined with know-how, precision irrigation empowers growers to provide exactly what the crop needs, moving away from guesswork and towards a more scientific approach. This shift towards data-driven decision-making is a powerful trend that will shape the future of greenhouse cultivation.
In conclusion, Take Me Home Tomato's success in Thailand's tropical climate is a testament to the power of innovation and adaptation. Their meticulous attention to detail, strategic decisions, and commitment to precision growing have set a new standard for greenhouse cultivation. As the industry evolves, their story serves as a beacon of inspiration, reminding us that even in the face of extreme challenges, the rewards of perseverance and ingenuity are well worth the effort.
