Rockwool culture technology _633 Netherlands -

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Dutch rock wool culture technology

Ring two. Open rockwool culture is characterized by a supply of the crop nutrient solution does not recycle its advantages are: ① facilities is simple, just add liquid equipment. Low cost. ② will not increase nutrient solution with the risk of disease transmission. Drawback is that consumption of more nutrient solution, and the discharge of the nutrient solution will cause environmental pollution beam. Circulation advantages of rockwool culture: ① nutrient solution recycling, will not cause environmental pollution ② 30% to 50% water and fertilizer can be reused. Reducing the consumption of nutrient solution. But the circular rock wool culture more complex facilities. Not only increase fluid devices. Also withered back to liquid, liquid storage facilities. To prevent nutrient solution led to spread of the disease stingy. Rockwool Dutch circulating nutrient solution culture also installed filtration and disinfection equipment. 2 cultivation and management technologies (1) preparation before planting greenhouse training ground for rock wool to be flat. Direction or along the drainage gradient of 2% of the greenhouse before planting ground cover the whole ten white polyethylene film has withered before sowing the entropy to choose a reliable irrigation system, the water of not less than L0 ~ 1.5L / M ~ ・ I-It, to meet crop needs. If the circular rock wool culture, but also set back to cover liquid l filtering. (2) The sowing and planting method is generally used for fruit and vegetable side Lou 7.5 ~ lOcm square block of rock wool,[link widoczny dla zalogowanych], rock wool block water soak before sowing. The seeds can be sown in rockwool block. Called for the colonization of the rock wool rock wool pad. Head and tail relative to the greenhouse rock wool pad after another trip, to walk between lines separated. Cucumber as an example. Planting density of I3 ~ 15 株 / m. A (100 × 20 × 75) cm of rock wool mat colonization 3. Rock wool wide aisle between rows of parallel 2In moisture irrigation lines placed in rock wool, moisture on the colonization of parts of the first. The most important step before planting is the seminar will rock wool pad soaked with the nutrition transition, soaked rock wool pad placed in the greenhouse 2, ~ 48h. Planting seedlings when placed together with the differences in the seedling block the colonization of the mouth of rock wool pad, (3) Nutrient Solution Nutrient Solution Formulation and management of local water quality to be built on the basis of the analysis. The Netherlands used the rain water as a nutrient solution configured for the crop nutrient solution formulations vary. Cucumber as an example. Dutch standard rockwool nutrient solution culture cucumber target concentration of each nutrient in Table 1. At different growth stages NoK,[link widoczny dla zalogowanych], SO. Change the concentration of nutrient solution management mainly refers to the acidity (pH) and electrical conductivity (EC value) management. pH value can be added by adjusting the amount of acid and ammonium fertilizer to maintain optimal levels of appropriate use. Seedling nutrient solution EC values of L. 2ms/cnl so. 1 week before planting rose 20ms/cm. Under poor light conditions. More suitable for the higher EC value of the case of high summer temperatures, EC reduces the value of listless. Winter low light. EC values can be appropriately increased. (4) temperature and humidity management for variety of thermal management, light conditions. Crops cultivation season and arrangements differ in the low season for the thermophilic crops by laying heating pipe under the rock wool pad or pre-heating temperature of nutrient solution to increase the root. Too high or too low humidity on crop growth are negative. Birds should be avoided after planting and summer humidity is too low. Hou Yan Teng Canopy formation of large amount should be reduced humidity, especially at night to reduce humidity. (5) of carbon dioxide fertilization in the daytime CO: fertilization can significantly increase the production of greenhouse crops,[link widoczny dla zalogowanych], the Netherlands by / mc ① concentration will be mainly through the following means of natural gas used as fuel burning greenhouse gas by pipeline into the combustion of propane in the greenhouse ② or paraffin. (6) greenhouse plants adjusted to take full advantage of space. For pruning the cucumber example. Side parallel to the rock wool mat of about 2. Om has Bangwan high tensile wire used. When the main vine growing over the metal wire that is topping: Fall planting,[link widoczny dla zalogowanych], the first one to stay in section 9 of the melon, melon left Zhuman 6 8, 1 to 8 all the thinning out of the melon cucumber long season cultivation. Up to 20 knots before leaving four melon. So as to maintain stable,[link widoczny dla zalogowanych], long-term fruiting plant capacity. Harvest cover 6 to 9 months. This is significantly different from plants in Bangladesh adjustment. (7) pest control and the Netherlands the main greenhouse pest control using biological control methods such as. Whitefly parasitoids deal with; with elimination of red spider mite predator; worm eradication of thrips by piracy. Results need to Taiwan when the use of pesticides. Powdery mildew, downy mildew, fusarium wilt. Anthrax, viruses and other disease prevention and control room. In the Netherlands, using a combination of greenhouse environment control. Chemical control measures and selection of resistant varieties to the failure of several rock Tuopei l standard cucumber buds well liquid formulation (unit: mg to Liu Wei Liu Zengxin c Vegetable Research Center, Beijing Academy of Agriculture and Forestry 10008] '. ●'。。。__ --,-__-。 eleven -27 * wow Gou Jp Zhou Ling Li ye take hold sex bun Piece Goods, (

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