Cucumber and pumpkin plugging technology, the principle of cucumber grafting pumpkin?

The principle of cucumber grafting pumpkin is because cucumber and pumpkin are plants of the same family and have less rejection.

Cucumber cultivation techniques

Land preparation

5 cubic meters of organic fertilizer for land preparation and fertilization, 25 to 30 kg of superphosphate or 10 to 15 kg of diammonium phosphate (5 kg of superphosphate per cubic meter, 2 to 3 kg of diammonium phosphate per cubic meter). Before planting, plough the furrow, the furrow is 1 meter wide, the height of the land is more than 15 cm, and the mulch is covered.

Colonization

Determination of planting period: planting as soon as possible on the premise of ensuring that there is no freezing after planting, and planting in Chengde area is generally in late April and early May. Temperature index requirements:

The minimum night temperature is above 5 and the soil temperature is above 12 at 0 to 10 cm. The cucumber in the autumn dew field adopts the method of live broadcasting.

Planting density: 4000 to 4500 acres, planting in large and small rows, small row spacing 40 cm, large row spacing 80 cm, plant spacing 25 to 30 cm, planting with dark water method.

Management

Sockets. After planting, the shelf should be planted as soon as possible, and the seedling should be pumped by wind, and the shelf can be a flower stand or a herringbone frame, about 8 to 10 cm away from the root.

Tie vines. The "8" method is used to tie vines to prevent abrasion of stems and vines and stems and vines containing reeds and drooping. Every 2 to 3 knots are tied, should be carried out in the afternoon, the stem vine is easy to break in the morning, the tightness of the vine should be suppressed and the weak should be strengthened, and the growth of the plant should be tied a little tighter, and the height of the growth point is consistent.

Pruning and pinching. For the main vine, all the side branches should be removed, and one or two leaves should be left after the side vine is fruitful, and all the tendrils should be removed. When the stem exceeds the head of the shelf, it is necessary to pinch the tip in time to promote the growth of the lower melon, and the method of twisting the tip can also be used to inhibit the growth of the upper part.

Fertilizer and water management. Timely watering and cultivating, the amount and frequency of water depends on the weather and growing period. Slow seedling water is watered 5 to 7 days after planting; water control, cultivating, and squatting seedlings before sitting on melons; When the root melon is 10 to 12 cm long, water the melon; Watering during the fruiting period and watering the stool every 5 to 7 days.

The principle of top dressing is that the front is light and heavy, a small amount of many times, urging melon fertilizer to be applied after the root melon sits, and the melon fertilizer is carried out after the root melon is harvested. Promote the use of organic fertilizer topdressing.

1. Preparation for seedlings: pumpkin seedlings are removed from the seedbed with a bowl or grafted in the seedbed, and then the cucumber seedlings are taken out by the roots, cleaned and disinfected. 2. Pumpkin to the heart:

The true leaves and growth points are removed, and the bamboo skewers are inserted diagonally at an angle of 30 to 45 degrees to the seedling stems. 3. Melon seedling treatment: cut the cucumber seedlings into wedge shapes.

4. Operation method: Insert the cucumber seedlings into the pumpkin seedlings with the cut side down.

1. Preparation for seedlings

Cucumber plugging generally uses black-seeded pumpkin as rootstock, before insertion, pumpkin seedlings need to be moved out of the bowl seedbed or grafted directly in the seedbed, and then cucumber seedlings should be brought out from the seedbed by roots, if the melon seedlings are dirty, they can be cleaned with clean water, rinsed and disinfected with carbendazim solution, and then the melon seedlings are placed on a clean plastic thin penny film to dry.

2. Pumpkin to the heart:

Use a blade to remove the true leaves and growth points of pumpkin seedlings, and then put the bamboo skewer on the top of the seedling stem, at an angle of 30 to 45 degrees to the stem, and insert it obliquely to the bottom of the other cotyledon for 5 mm to 1 cm, and the depth should be to contact the epidermis of the seedling stem with the tip of the bamboo skewer.

3. Cucumber seedling treatment

Use a blade to cut a knife obliquely on the vertical side of the cucumber cotyledon growth direction, within five millimeters from the cotyledons, and then cut the seedling stem into a monoclinic seedling shape, and then cut a knife obliquely from the back of the cutting surface, so that the seedling stem is wedge-shaped, and the cutting surface is large and flat.

4. How to operate

After the cucumber seedlings are processed, then pull out the bamboo skewers from the pumpkin seedling stems, insert the cucumber seedling stems into the jack of the pumpkin seedling stems to the bottom, and put the plugged cucumber seedlings into the seedbed for breeding, and at the same time water the seedling bowl and pay attention to the moisture retention in the shed.

3. All the seeds of ordinary pumpkins are not suitable for grafting cucumbers. Because the hypocotyls of ordinary pumpkin seedlings are thin and high, and the survival rate of grafting is low, it is not suitable for cucumber rootstock. The rootstocks commonly used for cucumber grafting are black-seeded pumpkin and white-seeded pumpkin.

Black-seeded pumpkin has strong disease resistance and strong growth potential, and is suitable for overwintering cultivation. White-seeded pumpkin is heat-tolerant, drought-tolerant, and suitable for use in the high temperature season.

Cucumber grafting is mainly a cultivation method in which cucumber roots are replaced by pumpkin roots. Cucumbers have underdeveloped root systems that can only extend to the surface of the soil, while pumpkin roots are more developed than cucumbers and can extend to a depth of 60cm in the soil. Generally, when grafting is carried out for the first time, it is best to choose local rootstocks that have been successfully grafted for grafting, or conduct small-batch affinity tests to prevent improper selection of rootstocks, which will affect the survival rate and the quality of cucumbers.

In addition, when grafting cucumber seedlings, it is also necessary to pay attention to the pairing of rootstock and scion. When grafting, if the growth of seedlings is different, it is necessary to pay attention to the selection of cucumber seedlings and pumpkin seedlings with coordinated stem thickness for paired grafting. Cucumber seedling stems should not exceed 3 4 and not less than 1 2 of pumpkin seedling stems, so as to improve the survival rate of grafting.