Hanging Chinese yam planting

Land preparation and border repair: saline-alkali land is loosened and raked and then repaired. Make casing: casing includes fittings and straight pipes. Production substrate: the substrate is made by mixed fermentation of mushroom residue, clam shell, fermentation auxiliaries, etc. Place the casing: discharge the casing with the matrix in the bed. Sowing Chinese yam: the seed is placed on the open port of the casing joint. Build scaffold: use yam net to build the scaffold of yam vine. Water and fertilizer management: drip irrigation with special Chinese yam fertilizer. Pruning: pruning side branches and removing yam beans.

1. Land preparation and bed repair

Generally, you can choose to plant yam in late March, first loosen and rake the planted saline-alkali land, and then repair the border, with a width of 3 meters and a spacing of 0.15 meters.

Second, making casing

The main results are as follows: 1. The casing is the key to planting Chinese yam without soil. The casing includes a joint and a straight pipe, the joint is a PVC plastic pipe with a Radian of about 100 degrees, the end of the joint is connected with the straight pipe, and the other end is an open port.

2. The straight pipe is composed of two semi-elliptical plastic pipes. The length of the straight pipe is 1.2m, the cross section is oval, and the diameter is 6cm × 7cm. Two clips should be prepared on the straight pipe, and the opening edge of the straight pipe should be clamped with a clamp.

III. Production of substrate

The planting substrate is made of mushroom dregs, clam shells, fermentation auxiliaries, carbonized rice husks and Chinese herbal medicine dregs according to proportion. The prepared matrix is uniformly placed in the casing. After the casing is placed in the substrate, it needs to be clamped with a clamp and a good joint.

Fourth, place the casing

Put the matrix of the casing into the border, each row neatly placed, leave a little gap between the casing, the end of the joint should be opposite the top, the distance between the two rows is 0.8 meters, the straight pipe can be slightly tilted at an angle of 17-20 degrees with the ground, and the casing should be covered with soil, not the casing port.

5. Sowing Chinese yam

1. Put the yam seeds on the open port of the casing joint, then cover the seeds with aseptic soil with a moisture content of 70% and 80%, and then cover the land where the yam is planted with black plastic mulch.

2. The drip irrigation facility with the integration of water and fertilizer is built on the plastic film, and the main pipe is built on the border head, the drip irrigation pipe can be pressed against the plastic film, the drip irrigation mouth is aligned with the port of each casing, and then penetrates the plastic film between the drip irrigation mouth and the casing port, so that during drip irrigation, water and fertilizer can be dripped into the casing.

Build a bracket

1. Cement columns are placed at both ends of the border with a height of 1.8 meters. After the cement columns are deeply buried and fixed, steel wires are tied and tightened between the two ends of the border.

2. Then insert one end of the yam net into the steel wire to make the whole piece droop naturally, and then use the bottom line to pass through the lower mesh, and then the steel wire is flattened and fixed, which is used for the support of the yam vine.

VII. Water and fertilizer management

The main results are as follows: 1. The growth of Chinese yam is relatively fast, drip irrigation every 3 days for 2 hours, and topdressing for 3 times. Special seedling fertilizer (150kg.hm-2) can be dissolved in water for drip irrigation.

2. Enter the middle stage of growth about 30 days after emergence, in the middle stage, drip irrigation once every 3 days, drip irrigation for 4 hours each time, topdressing should be carried out for 2 times of drip irrigation, and the special Chinese yam fertilizer (300kg.hm-2) will be dissolved in water for drip irrigation.

3. In the peak growth period after budding of Chinese yam, drip irrigation was performed every 3 days, for 5 hours each time, and topdressing every 6 days. The special fertilizer (600kg.hm-2) was dissolved in water for drip irrigation, and the water output from the drip mouth was 2-3L.h-1.

8. Pruning

During the growing period of Chinese yam, the side branches should be pruned in time, the yam beans should be removed, and 5 side branches should be retained in each plant.

IX. Control of diseases and insect pests

In the stem vine growth stage, leaf spot and anthracnose diseases are generally prone to occur. Foliar can be sprayed every 7 days, with 50% carbendazim 500 times and 70% mancozeb 500 times, or 75% chlorothalonil 600 times.