First, the sowing date and varieties of autumn spinach: 8-9 months sowing, 30-40 days after sowing can be harvested in batches. Should choose more heat-resistant, fast-growing early maturing varieties. Overwintering spinach: sowing from mid-October to early November, harvesting in batches before and after the Spring Festival, should use medium- and late-maturing varieties that are strong in winter, late in bolting, and strong in cold resistance. Spring spinach: The temperature can be started when the temperature rises after the beginning of spring, and the appropriate period for sowing is March. It can be harvested 30-50 days after sowing. The varieties should be selected for late sowing and leaf hypertrophy. Summer spinach: sowing in stages from May to July, harvesting from late June to mid-September, and varieties with strong heat-resistance, rapid growth, and not easy convulsions should be selected. Second, the soil preparation option is to loose loose fertility, water and fertilizer, drainage and irrigation conditions are good, slightly acidic soil. During the site preparation, over 40 kg of calcium phosphate was applied. In winter and spring, sorghum should be used, and summer and autumn should be used as flat rakes, and the width should be 1.2-1.5 meters. Third, sowing nursery generally use sowing. In the summer and autumn sowing, the seeds were soaked in water for 12 hours before being sowed, and then they were treated in a refrigerator freezer for 24 hours, then germinated and sowed after 3-5 days of budding. In winter and spring, dry seeds or wet seeds can be sowed. After planting water, plant the seedlings, soak the top soil with a gingivae, so that the seeds are sown in the soil, and a layer of ash is planted on the hoe surface. After the sowing in summer and autumn, cover with straw or use a small shed to cover the shade net to prevent high temperatures. Heavy rain scouring. Keep the soil moist and keep it fresh for 6-7 days. If the winter sowing temperature is relatively low, plastic film is used to cover the seedlings on the loquat, and then removed after emergence. Fourth, the field management Qiubo cuisine out of the true leaves poured pour of manure water once; out of 2 true leaves after the seedlings weeding. After sowing, the soil in the winter spinach was kept moist, and water and fertilizer were applied according to the seedling conditions and the weather. Frost and snow and ice weather should be covered with plastic film insulation, it can also be covered with a small arch. Pre-spring spinach should be covered with plastic film insulation, and the seedlings should be exposed after the emergence of the film. Follow-up fertilization water, in the early stages of the decomposing people and animal dung, light, and ground facilities, especially in the top 15 days before harvesting topdressing available nitrogen fertilizer. After the emergence of summer spinach, shade nets should be used to cool down.
total alkalinity: prevent fluctuation in pH levels
Free Chlorine: Chlorine
may be present in tap water. It is harmful to fish, damaging their
gills and skin, and must not be introduced to the aquarium
pH: pH value between 6.5 and 8.5 will be tolerated by most freshwater fish species
Bromine: Keep your bromine levels on point and effective
Total hardness: prevent corrosion and scaling in your pool or spa
tatal chlorine: know exactly when to shock your water
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