In high-temperature greenhouses, over-fertilizing can lead to serious issues. Due to the warm and humid conditions, organic fertilizers decompose quickly, and nitrogen tends to volatilize more easily, increasing the risk of fertilizer burn. For greenhouses that have been used for vegetable cultivation for more than three years, it's important to limit chicken manure and cow dung to no more than 2,500 kilograms per acre, and reduce chemical fertilizer use by about 50%. Additionally, it's essential to supplement micronutrients like boron, zinc, and magnesium to maintain a balanced nutrient profile in the soil.
Maintaining an appropriate greenhouse temperature is also crucial. Some farmers mistakenly believe that higher temperatures speed up plant growth. However, most vegetables thrive at a maximum temperature of around 32°C. Excessively high temperatures can hinder fruit development, disrupt the balance between vegetative and reproductive growth, and ultimately reduce yield. In some cases, plants may only produce long vines or excessive foliage without proper fruiting.
Planting seedlings too densely can also be problematic. Studies show that when two plants are placed per square meter, half of the photosynthetic products are used for vegetative growth, and the other half supports fruit development. However, if four plants are planted per square meter, up to 70–80% of the energy is consumed by the vegetative parts, leaving less for fruit production. This leads to lower yields and increases the likelihood of bacterial diseases. Therefore, proper spacing is key to maximizing both quality and quantity in greenhouse farming.
Mini Laser Distance Meter
JRT mini laser rangefinder is a portable and cute diastimeter, which is a very convenient measurement tool. We offers best quality Handheld Laser Distance Meter, accuracy laser range finder, best laser distance measurer, bluetooth Laser Distance Meter.
Our Professional R&D team has over 15 years of experience on the laser and measurement field , so we have made out the mini size laser distance module in the world. For the miniature laser distance meter, whether used for interior design, construction, real estate, the D30 styel is engineered to meet your measuring needs with six calculation functions: Area, Height, Volume, Area Summation, Addition/Subtraction, and indirect Pythagorean Theorem.
Compact and Handy design
♪ Mini design
♪ Fits comfortably in hand and easily in pocket
♪ High Accuracy ±1.5 mm & Make Job Easier
♪ Measuring range: 3cm to 30m
♪ Automatic calculation of area and volumeSmall Laser Distance Module,Mini Laser Measure,Smallest Oem Laser Modules,Mini Laser Distance Meter
Chengdu JRT Meter Technology Co., Ltd , https://www.jrt-measure.com