potato mira
Variety source: the Democratic Republic of Germany uses "Capella" as the female parent and "B.R.A.9089" as the male parent. It was bred in 1952 and introduced into China in 1956. Up to now, it is still one of the main varieties in Enshi area and southwest mountain area of Hubei Province.
Main characters: plant type development, medium number of branches, plant height about 60cm, stem green base purplish, strong growth potential; green leaves, medium velvet into compound leaves, 4-5 pairs of lateral leaflets, dense and medium arrangement; inflorescence total peduncle green, petiole node colorless, Corolla white, medium size, no double petals, stamens orange, stigma 3-lobed, natural fruit weak; paddle green, small, with seeds. The tuber has long tube shape, yellow skin, smooth epidermis, but rough top, more bud eyes, medium depth, medium tuber size, scattered tuber, long dormant period and storage resistance. Mid-late maturity, growth days of about 115d; excellent steaming quality; processing quality: 25.6% of dry matter, 17.5% of starch, 0.25% of reducing sugar, 1.1% of crude protein, vitamin C10.4 mg/100g; resistant to late blight; high resistance to cancer, not resistant to powdery scab, light to leaf roll and mosaic virus; generally 667 square meters of output is 1000~1500kg.
Suitable for planting areas: this variety is suitable for planting in mountainous areas in the southwest where there is a long frost-free period, heavy rain and humidity, and late blight is easy to be prevalent; it is mainly distributed in Hubei, Guizhou, Sichuan, Yunnan and other places.
Key points of cultivation techniques: this variety is tolerant to fertilizer, attention should be paid to the application of fertilizer during cultivation, and row spacing should be appropriately relaxed when interplanting with corn in order to reduce the shade of corn. For example, the row spacing of 95cm can be used for single intercropping, and 166cm can be used for double-row intercropping. The suitable density of single cropping is about 3500 plants per 667m2.
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Double-row High-yield cultivation techniques of Potato under Ridge cultivation
The double-row high-yield cultivation technique of potato in ridge cultivation is a comprehensive high-yield cultivation technique of potato, which is based on deep loosening, deep fertilization by ridging and reasonable double-row planting. Generally, the yield is more than 15% higher than that of conventional border cultivation, and the commodity rate of qualified potato is increased by more than 20%. Main technical points: 1. At present, suitable varieties are mainly popularized and planted in southern China, such as Sishu No. 1, Atlantic, Jinke 303, Holland 7, Holland 15, Dongnong 303, Kexin 4 and other potato varieties with early and middle maturity, high yield and high quality. two。 Strict land selection and fine land preparation
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Potato no-tillage covered with crushed grass
In recent years, with the expansion of mechanical harvesting area of late rice and middle rice, there are more broken grass after mechanical harvesting. These broken grass are relatively messy, not easy to collect, scattered in a mess in the fields, and some farmers set them on fire after the beginning of spring, which not only wastes resources, but also pollutes the environment. In fact, the crushed grass harvested by the rice machine can be used to cover potatoes. Compared with ordinary straw, the crushed straw after machine harvest is soft, the cover is tight, and generally there is no light leakage, which is better than uncrushed straw. Cover potatoes with chopped grass harvested by machine
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