Cultivation techniques of lotus root
1. Apply basic fertilizer to select and prepare land. Lotus root fields should choose clay loam fields with good water retention, good rising and precipitation conditions and high organic matter content. Combined with the application of organic fertilizer 2000-3000 jin per mu and compound fertilizer 30 jin per mu, the tillage depth should not exceed 20cm, and the soil preparation should be flat and fertile.
2. Planting. The best planting period is in the middle and last ten days of April every year, and the cultivation in greenhouse can be advanced to early April. The amount of seed used per mu is 400-500 jin, and the plant-row spacing is 0.7-1.5m. When planting, the bud head of lotus root is obliquely inserted into the soil depth of 10-12cm, the bud head should be parallel to the soil surface, and then the node is exposed to the ground 2-3cm. The buds of lotus root planted around the field should face the field to prevent the lotus root from growing out of the field. The wrong row cross planting is used in the field, and the bud head should not only be oriented in one direction, so as to make full use of the field space.
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High-yield and high-efficiency planting model of garlic and ginger
This model is suitable for watering garlic in autumn sowing area. The yield of ginger, garlic mu, garlic moss and garlic per mu is 2500m / mu, 500kg / mu and 1000kg / mu, respectively. Planting form: make the bed from east to west, the width of the bed is 1 meter, plant 4 rows of garlic, cover 2 rows of ginger. Garlic is planted in large and small rows, with large row spacing of 30 cm, small row spacing of 20 cm, plant spacing of 6-8 cm, and 3. 3-35000 plants per mu. 2 rows of ginger are interplanted between large rows of garlic, with a row spacing of 50 cm and a plant spacing of 12-15%.
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Control of three diseases of onion and garlic
First, purple spot. It is mainly harmful to chives, scallions, garlic, onions, leeks and so on. It is the main disease of scallions and garlic, and leaves and pedicels are the main damaged parts. The disease spot is watery at first, grayish white, slightly sunken, and then expanded into an oval or fusiform, purplish brown. When the humidity is high, the disease produces a black mildew layer arranged in the shape of a concentric wheel. When the disease is serious, it causes the leaves and stems to wither or collapse. The disease occurs seriously under warm and humid conditions or lack of fertilizer and drought. The disease is serious in sandy soil, dry land and fields seriously damaged by thrips. ⑴ agriculture
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