Planting technique and time of Zizania caduciflora

Planting time: double-cropping Zizania caduciflora is mostly planted from November to the end of April, or from June to August in southern China, and single-cropping Zizania caduciflora is usually planted in spring. Planting techniques: the roots of Zizania latifolia were cut with a knife as seedlings and planted in paddy fields or shallow ponds. Farm manure or organic fertilizer could be used as base fertilizer to ensure sufficient water during the growth period, and fertilize according to the growth of Zizania caduciflora in the later stage. and timely weeding and pest control.

First, planting time

There are many varieties of Zizania caduciflora, mainly divided into two types: double-season Zizania latifolia and single-season Zizania latifolia. In the south, double-season Zizania caduciflora is generally planted from November to the end of April, or from June to August, and harvested in autumn, and finished by the end of April or August at the latest.

2. Seed selection and nursery

1. Double-season varieties with late maturity and high yield can be selected, or single-season varieties with early market and high yield can be selected, mainly according to the market situation and local environment. Because Zizania caduciflora is asexual reproduction, there is no conventional method of sowing and raising seedlings.

2. Generally, the old Zizania caduciflora pier is planted separately. During this period, the Zizania caduciflora pier with strong growth, no disease and no male plant is selected, and the small pier root with mud is cut with a knife as seedlings, and about 1000 plants can be planted per mu.

III. Land preparation

Can choose to plant in the paddy field or shallow pond, and then turn the soil deep to the sun, rough ploughing to make it loose, Zizania caduciflora in the growth process, need a large amount of fertilizer, so in the planting to apply sufficient base fertilizer, base fertilizer can be applied organic fertilizer or farm fertilizer, should not be applied chemical fertilizer, after fertilization can be turned deeply into the soil, so that the soil and fertilizer mix evenly, and then irrigation rake flat, and then strengthen and raise the ridge, during the irrigation height should not exceed 20cm.

IV. Transplanting

Generally transplanting from October to November, mainly by strip planting, according to the row spacing of 0.8-1 m, plant spacing of 0.5-0.6 m, and grasp the planting depth, too deep planting will lead to poor tillers, generally with the old stem and the base of Zizania caduciflora seedlings inserted into the mud, it is appropriate not to float.

V. Field management

1. Water: in each growth stage, the water demand of Zizania caduciflora is different, the water demand is small in the early growth stage, the water demand is larger in the peak growth season, sufficient water should be ensured during the growth period, and the water demand should be gradually reduced in the later growth stage.

2. Topdressing: it needs to be determined according to the growth of Zizania caduciflora. It is not suitable to apply fertilizer directly under Zizania caduciflora seedlings. 2-3cm should be separated from Zizania caduciflora seedlings to avoid burning seedlings due to excessive fertility.

3. Weeding: weeding should be carried out in time during the growth of Zizania caduciflora, which is helpful to improve soil permeability and avoid nutrient consumption.

4. control of diseases and insect pests: the common diseases of Zizania caduciflora are leaf blight, rust, leafhoppers and aphids. when diseases and insect pests occur, we should pay attention to timely prevention and control.