How Many Times Does a Strawberry Usually Bear Fruit in a Year, and the Causes and Control of Deformed Fruit

Strawberry, also called pineapple strawberry, originated in South America and is widely cultivated throughout China and Europe. Strawberries have high nutritional value, contain a variety of nutrients, and have health benefits. So how many times can a usually planted strawberry bear fruit in a year? What are the causes and control of deformed fruit?

How many times can a usually planted strawberry bear fruit in a year?

1. The fruiting period of strawberry is very long, but it does not bear fruit all year round; it lasts 6-8 months. In the subtropical regions of the south, planting is generally done in late September and early October, the fruit matures 50 days later, and harvesting continues until the arrival of the heavy rains in March of the following year, when it ends; 2 to 3 batches of fruit can be harvested. In the central region, when greenhouses are used, planting is generally done from late August to early September, the fruit matures in about 90 days, and harvesting continues until May of the following year; 3 to 4 batches of fruit can be harvested. In the northern region, planting is generally done from mid-August to late August, the fruit matures in about 100 days, and harvesting continues until June of the following year; 4 to 5 batches of fruit can be harvested.

2. Strawberries generally begin to sprout in late February, bloom around mid-April, and the fruit only fully matures around mid-to-late May; that is to say, strawberry is a fruit of late spring and early summer. Strawberries can generally be eaten around May, but some earlier ones can reach the market in March or April. However, they may be artificially ripened, so it is not enough just to know when strawberries are on the market; you also need to know how to tell them apart.

What are the causes and control of deformed fruit in usually planted strawberries?

The main causes of deformed fruit in strawberries:

1. The ecological environment at certain stages is unsuitable for the growth and development of some strawberries;

2. The links in cultivation management techniques are not in place; the affected factors include temperature, light, water, fertilizer, pollination, etc., causing poor development of some strawberry plants. Excessive nitrogen fertilizer application, insufficient boron fertilizer application, and high temperature and drought. For example, when there is too much nitrogen fertilizer, such as too much nitrogen fertilizer during the flowering period combined with boron deficiency, the content of plant auxin in the growing point increases, causing the growing point to expand in a band shape just before flower bud differentiation, and two or more flowers differentiate at the same time, causing 2-3 pedicels to bloom at the same time and form cockscomb-shaped fruit, double-headed fruit, or multi-headed fruit. Another example is when boron fertilizer is insufficient, the flowers are small, pollination is poor, and the fruit expands on one side while contracting on the other, becoming deformed. Under high temperature and dryness, if too much water is given, the fruit easily cracks and the flesh is exposed. When insect pollination is inhibited and fertilization is poor, crooked and flat fruits are easily formed.

Control methods:

1. Choose varieties with a high fruit-setting rate. Each region can choose according to local conditions.

2. Fertilize with a scientific formula. Organic fertilizer and inorganic fertilizer should be combined, and especially an appropriate proportion of phosphorus and potassium fertilizer should be applied. Per mu, the base fertilizer should be 4000-5000 kg of decomposed farmyard manure, 40-50 kg of superphosphate, 15 kg of potassium sulfate, 0.2 kg of Chilibor, and 30 kg of nitrogen, phosphorus, and potassium compound fertilizer. After planting, apply compound fertilizer every about 20 days, 10 kg per mu, and apply once a month in the later period. At the same time, spray Huimanfeng active liquid fertilizer and Sulobor 2-3 times.

3. Do a good job with related supporting measures. Choose high-efficiency and low-toxicity pesticides. Strawberries rely on insects for pollination. Sometimes, even within the temperature range suitable for pollination and fertilization, improper pesticide application kills pollinating insects, or low nectar and sugar content in the flowers cannot attract insects, both of which will affect pollination and fertilization and produce deformed fruit. Avoid controlling pests and diseases during the flowering period, remove deformed young fruit with very abnormal shapes, and regularly thin out old leaves and ineffective axillary buds.