So how to plant Kyoho grapes, and what are the planting methods and precautions of Kyoho grapes?
The key point of Kyoho grape cultivation technology is untimely cultivation, and improving the fruit setting rate is the key to success.
1, when the diameter of new shoots exceeds 1.5cm, it is difficult to form flower buds and poor fruit setting, so the application of nitrogen fertilizer should be controlled first to prevent excessive growth of trees;
2. Pick fruit branches before flowering. Picking should not be too heavy or too light. Too heavy is easy to produce large and small grains, and too light will not improve the fruit setting rate. It is advisable to leave 5 leaves on the ear.
3. Inflorescence shaping, that is, removing 2-4 small branches from the secondary ear and the base of the inflorescence, pinching off the top of 2-3cm, and leaving only the middle part of 7-8cm, which can make the nutrition supply centralized when flowering, improve the fruit setting rate and make the fruit ear compact;
4, fruit thinning, appropriate fruit thinning after fruit setting, thinning small grains and fruit grains inside the ear, leaving 40-50 fruits per ear.
Kyoho Grape 1 Cultivation and management techniques, timely bud setting and reasonable pruning.
In the encyclopedia of Kyoho grape planting technology, after the grapes germinate in spring, the heavy buds and small buds should be erased as soon as possible, and the strong buds should be kept.
Before flowering, the main shoot should be stoned 2 ~ 3 times in time, and the secondary shoot should be erased, so that more nutrients can be transported to the parts of the flower organs, and at the same time, some inflorescences should be properly thinned, and the 1/4 ~ 1/5 at the end of the inflorescence should be pinched off 3 ~ 5 days before flowering, so that the nutrients can be supplied to the remaining fruit grains in a centralized way.
Pruning medium and long branches in winter, it is appropriate to leave new branches 10 ~ 15 per square meter, staggered up and down, to ensure the growth of grapes per spike to 15 ~ 25 leaves, and the yield per mu is controlled within 2500 kg.
This can make the ear compact, the fruit grains neat and mature, and improve the flavor and color of berries.
2. Strengthen fertilizer and water management to prevent premature aging of trees.
In the encyclopedia of Kyoho grape planting technology, Kyoho grape has strong growth potential and requires high fertilizer and water conditions.
But irrigation should be appropriate, especially 20 days before 15 ~ picking.
It is necessary to control the amount of nitrogen fertilizer and increase the amount of phosphorus and potassium fertilizer.
In vineyards that begin to bear a lot of fruit, we should pay attention to increasing fertilizer, keeping the trees vigorous and prolonging the full fruit period.
Water: water the grapes once after they are unearthed in spring.
If the soil is not too dry before flowering, try not to water it.
After the flowers wither, the fruit enters a period of rapid expansion, which is a period of high water demand and can be watered once every 10 day.
When the fruit particles begin to change color, stop watering to improve the soluble solid content of the fruit.
Before burying the soil in winter, water the grapes once with big water to help them survive the winter.
3. Measures to improve the fruit setting rate of Kyoho grape.
Falling flowers and fruits is a common problem in Kyoho grape production.
The main reasons are the poor development of flower organs, inability to pollinate and fertilize normally, bad climatic conditions during flowering and malnutrition of trees.
The following technical measures should be taken in production to improve the fruit setting rate of Kyoho grape.
Kyoho grape 1 cultivation precautions. Flowering, Fruit Dropping and Particle Size
2. The stability of fruit quality is poor (size, sugar content, color, fruit powder and flavor).
3. Tree vigor, yield and fruiting period (prone to premature aging)
4. Particularity of soil environment, fertilizer and water
5. Pests and diseases (ear stem brown blight, anthracnose, downy mildew)
Kyoho grape is one of the main varieties in production at present, which has strong adaptability, good disease resistance and cold resistance, and likes fat and water.
Medium-mature tetraploid variety, European-American hybrid, native to Japan.
The above details about how to plant Kyoho grapes, the planting methods and precautions of Kyoho grapes hope to help you!