A Detailed Guide to Spring Pumpkin Planting Techniques and High-Yield Management Methods

Pumpkin, as an annual trailing herbaceous plant, can serve as both a vegetable and a substitute for grain, and every part of the plant is also used medicinally, giving it great economic and cultivation value. So what are the spring pumpkin planting techniques? What are the high-yield management methods?

1. What are the spring pumpkin planting techniques

1. Sowing

Dibbling: 2-3 seeds per hole, with the pointed end of the seed facing down, covered with 2-3 cm of soil, watered thoroughly; at 25-30°C they sprout in about 1-2 weeks.

Direct sowing: the ground can be prepared in the winter of the previous year and given plenty of base fertilizer, then the seeds can simply be buried in the second and third months of spring the following year. Because the vines grow long and fast, fertilizer must be applied as a top dressing during the fourth, fifth and sixth months, along with attention to watering. Pumpkin management is relatively extensive; because the root system is well developed and roots form at the leaf nodes, attention must be paid to hilling soil so that nutrients can be absorbed. A single pumpkin plant can produce many branches; to keep nutrients from being too dispersed, pruning is necessary, leaving 2-3 main vines per plant, and depending on soil fertility and the growth of the seedlings, the terminal buds can be removed after several fruits have set. As long as the soil is fertile and watering and fertilizing are done diligently, a pumpkin will generally set a fruit every 3-5 leaves, and if too many fruits are kept they will not grow large. Axillary buds sprout very easily at the leaf axils of the fruit, and these must be removed, otherwise they compete with the fruit for nutrients, causing the fruit to wither and drop from insufficient nutrients.

2. Planting out

When there are 3-5 true leaves, strong, pest- and disease-free seedlings can be selected on a sunny afternoon for planting out, 1 plant per pot, with the planting depth such that the cotyledons are level with the soil surface, and watered thoroughly. If direct sowing was used, then weak and diseased seedlings must be thinned out, leaving 1 seedling per hole.

2. High-yield management methods for pumpkin

1. Pinching

When the pumpkin vine grows to about 2 m, the growing point of the main vine should be pinched off, so that the main vine produces branch vines and the vines are encouraged to flower and set fruit.

2. Building a trellis

When the vines grow to 3 m, they should be trained onto the trellis. Pumpkin fruits are relatively large and heavy, so the support chosen must be able to bear the weight of the pumpkins; this can effectively increase the fruit-setting rate, and importantly, it keeps the fruits from rotting.

3. Spraying on the leaves and drenching at the roots

Because pumpkins are fairly large, top-dressing management must be done in good time during the fruiting period to improve yield and quality, and for top dressing, foliar fertilizer can be sprayed and organic drenching fertilizer applied at the roots. After fruit set, the pumpkin should be sprayed with foliar fertilizer every 10 days, and at the same time organic drenching fertilizer should be applied at the roots, which lets the pumpkin vines grow more vigorously.

4. Supplementary pollination

When a female flower is about to open and is ready for pollination, it should be covered with a pumpkin leaf, and then between eight and nine o'clock the next morning, a male flower from a different plant should be picked and placed over the female flower; after pollination it can be removed.

5. Removing yellow leaves

On vines that have already flowered and set fruit, yellow leaves generally appear as soon as the vine flowers and fruits, and they should be removed promptly as soon as they are seen; this reduces nutrient consumption, so the pumpkin will set more fruit and the pumpkin yield will increase.

6. Preventing excessive vegetative growth

Excessive vine growth will reduce the number of pumpkins set, so it must be prevented, and nitrogen fertilizer should be controlled appropriately while phosphorus and potassium fertilizer are increased. At a point 30 cm from the base of the vine, a small slit can be cut in the middle of the vine with a knife, and then a small piece of charcoal inserted into the slit; this can control excessive vine growth.

I believe everyone now has a more comprehensive understanding of pumpkin planting methods. If farmers want to grow high-yield pumpkins, all of the above methods are very good.