Seedling culture substrate, preparation method and application thereof in vegetable plug seedling culture
A seedling-raising substrate and plug-in tray technology, which is applied to the seedling-raising substrate and its application in vegetable plug-in tray seedling cultivation, can solve the problems of increasing the labor cost of water spraying times, failing to meet the needs of seedling growth, and reducing root aeration, etc. Achieve the effects of avoiding the chance of dipping, reducing the rate of loose lumps, and saving ecological resources
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Embodiment 1
[0030] Tomatoes: 72 hole trays, the volume of the dry water retaining agent is 0.4% of the volume of the vermiculite, the particle size ratio of the water retaining agents A and B is 2:1, and the volume of the nutrient solution is 50 times the volume of the water retaining agent.
[0031] In order to obtain satisfactory results, the present embodiment successively carried out experimental research on each step of the tomato plug seedling cultivation process, which is summarized as follows:
[0032] 1. Preparation of seedling substrate
[0033] (1) Choose vermiculite with a particle size of 1 to 3 mm as the base material;
[0034] (2) Choose 100 trays with 72 holes, each tray needs about 3.5L of vermiculite, and 100 trays need 350L of vermiculite;
[0035] (3) Calculate the amount of dry water-retaining agent (the main component of the water-retaining agent is acrylamide-acrylate copolymer cross-linked product, purchased from Beijing Hanli Miao New Technology Co., Ltd.) accord...
Embodiment 2
[0047] Cucumber: 50-hole hole tray, the volume of the dry water-retaining agent is 0.3% of the volume of the vermiculite, the particle size ratio of water-retaining agents A and B is 3:1, and the volume of the nutrient solution is 40 times the volume of the water-retaining agent.
[0048] Present embodiment has carried out experimental research to each step of cucumber plug seedling raising process, is summarized as follows:
[0049] 1. Preparation of seedling substrate
[0050] (1) Choose vermiculite with a particle size of 1 to 3mm as the base material;
[0051] (2) Choose 100 trays with 50 holes, each tray needs about 3.6L of vermiculite, and 100 trays need 360L of vermiculite;
[0052](3) Calculate the amount of dry water-retaining agent (same source as in Example 1) based on 0.3% of the total volume of vermiculite, which is 1.08L. The particle size of the water-retaining agent is selected from two types: A: 1.0mm and B: 0.25mm, according to the volume of 3:1 Therefore, ...
Embodiment 3
[0064] Capsicum: 72-hole hole tray, the volume of the dry water-retaining agent is 0.4% of the volume of the vermiculite, the particle size ratio of water-retaining agents A and B is 3:1, and the volume of the nutrient solution is 40 times the volume of the water-retaining agent.
[0065] Present embodiment has carried out test successively to each step of capsicum plug seedling raising process, is summarized as follows:
[0066] 1. Preparation of seedling substrate
[0067] (1) Choose vermiculite with a particle size of 1 to 3 mm as the base material;
[0068] (2) Choose 50 trays with 72 holes, each tray needs about 3.5L of vermiculite, and 50 trays need 175L of vermiculite;
[0069] (3) Calculate the amount of dry water-retaining agent (same source as in Example 1) based on 0.4% of the total volume of vermiculite, which is 0.7L. The particle size of water-retaining agent is selected from two types: A: 1.2mm and B: 0.2mm, according to the volume ratio of 3:1 Preparation, th...
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