How to cultivate autumn lettuce
Autumn sowing summer sowing, when the high temperature season, seed germination is difficult, not easy to seedlings, seedlings long, early flower bud differentiation, bolting quickly. Therefore, nurturing strong seedlings and preventing premature bolting are the key to the success of cultivation. The main points of cultivation techniques are described below:
Select varieties: choose heat-resistant, fast-growing, good-quality early maturing varieties, such as special heat-resistant white peel, heat-resistant white tip leaves, Zhengxing 3 and so on.
Sow seedlings: general nursery transplanting, 7 ~ September for the appropriate sowing; low temperature germination before sowing, vegetable farmers use frozen method, the seeds are soaked for 24 hours, wrapped in gauze, in the refrigerator or freezer, in -3 °C ~ 5 °C temperature frozen for a day and night, and then placed in a cool place, 2 to 3 days to germination; can also be used hanging method, with cold water to soak the seeds for 1 to 2 hours, to "floating seeds", with gauze bag Well, put it in the well 30 centimeters from the surface of the water and take out the seed for 1 to 2 times a day for 3 to 4 days to germinate. After sowing, try to create a mild moist condition. Set up a shed to keep the seedbed moist; Before the membrane is planted, use 500 times 75% chlorothalonil spray every 7-10 days to prevent the occurrence of damping-off and epidemic diseases; and use seedlings after maturity to dilute faecal water or potassium dihydrogen phosphate 0.1 % solution dressing 1 ~ 2 times to strengthen the seedlings.
Site preparation: seedling age 25 to 30 days, 4 to 5 true leaves when planting; seedling age is too long, the seedlings are easy to "pick up"; per acre Shi composting compost and human and animal manure 4000 kg and compound fertilizer 50 kg, do 1.2 ~ 1.5 meters wide sorghum; spacing 30 to 35 centimeters, plant spacing 25 centimeters, per acre planted 6000 to 7000; to tender plant listed, the density can be doubled, row spacing is 2015 centimeters.
Single Packed Mottled Waxy Corn
Waxy corn comes in a variety of colours. Some people wonder if waxy corn is a genetically modified product. In fact, it is not. Waxy corn originated in China. It is caused by a genetic mutation. Artificial selection gradually led to the emergence of a type of tannin.
Waxy corn, also known as waxy corn, is sticky corn. The grain has coarse, waxy endosperm, similar to shiny, glassy (clear) grains such as hard and dented corn. Its chemical and physical characteristics are controlled by a recessive gene (wx), which is located on chromosome 9. 100% of the starch in the endosperm is straight-chain starch.
Coloured glutinous corn is generally white, yellow, red, purple and black, with white, yellow and purple corn being the basic colours. Purple and white hybrids naturally become purple if the purple gene "beats" the white gene and vice versa, so if the two tie we see white and purple corn. Purple can turn into red and black corn, or as we often say, "red is purple and black is purple". Of these colourful corn, the most common yellow waxy corn is the most nutritious as it is rich in carotenoids...
Currently, the only genetically modified foods sold on the Chinese market are soybean oil and papaya. Waxy maize is a hybrid variety and is not associated with genetic modification. Therefore, it can be concluded that glutinous maize is a hybrid variety and has nothing to do with genetic modification.
Genetic modification is a type of "genetic engineering" in modern science and technology, which makes use of modern molecular biology techniques. Hybridisation is the mating of individuals of different genotypes to produce offspring that are different from the original "pure" breed. In a sense, it belongs to the natural exchange of genes that can occur in nature.
Colorful Waxy Corn,Colorful Mottled Waxy Corn,Single Packed Mottled Waxy Corn,Single Packed Colorful Waxy Corn
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