Boron is so important during flowering and fruit setting! Seven functions of boron!

Although boron is not a component of various organic matter in crops, it can enhance some important physiological functions of crops.

If the supply of boron element is sufficient, the crops will grow luxuriantly, the grains will be full, the root system will be good, and the harvest will be guaranteed; on the contrary, the supply of boron element will be insufficient, the plant will grow poorly, and the quality and output of the product will decline; Let's talk about the role of boron.

1 Stimulate pollen germination and increase fruit setting rate

Boron can stimulate pollen germination, especially the elongation of pollen tubes, and can also promote the normal development of crop reproductive organs, which is conducive to flowering and fruiting. Appropriate application of boron fertilizer can accelerate the development of flower organs, increase the number of pollen, and promote the germination and growth of pollen grains. The growth of pollen tubes.

Studies have shown that the concentration of boron in the ovary has a great influence on the growth of pollen tubes. When the concentration of boron in the ovary is too low, the growth of pollen tubes stops and fertilization cannot be performed; only when the concentration of boron in the ovary reaches 17.5mg/kg can fertilization be carried out. The normal fertilization process, therefore, the formation and development of crop floral organs are directly related to boron.

2 Promote smooth skin and improve fruit quality

At present, citrus has entered the fruit expansion period, and many orchards have rough peels and rough fruit surfaces. Studies have shown that the peak of boron requirement for citrus is before flowering and 80-140 days after full flowering, indicating that the expansion stage has a stronger boron absorption capacity.

However, boron deficiency in citrus will cause leaf hypertrophy, swollen veins, rough peel development, thickened and raised peel, and poor fruit quality.

3 Improve the absorption of nutrients by crops

Boron deficiency will not only reduce the boron content of citrus, but also affect the absorption of other mineral elements, especially the content of phosphorus, potassium, magnesium, calcium, iron, zinc and manganese. Applying boron fertilizer can make the magnesium content of old leaves reach Normal levels without boron application can cause severe magnesium deficiency in older leaves.

4 Increase plant stress resistance

Boron fertilizer can enhance the drought resistance and disease resistance of crops; boron application can promote the formation of vitamin C, and the increase of vitamin C can improve the stress resistance of crops. If the supply of boron to the crops is insufficient, the stress resistance and disease resistance will be weakened, which will cause certain physiological diseases of the crops.

5 Promote cell division and elongation

Boron deficiency will inhibit the growth of crop root tips and lateral roots, stop growth, and reduce the density of main roots and lateral roots due to boron deficiency, affecting crop absorption capacity.

Spraying boron fertilizer before flowering, fruit preservation period, fruit expansion period, and autumn shoot period can strengthen flowers and preserve fruit, and make the fruit skin fine and smooth.

6 Promote early maturity of crops and improve quality

It is reported that under the influence of boron, the vernalization time of winter wheat will be shortened by eight days; if boron is applied to cotton, the flowering before frost will increase, and the yield and fiber quality of seed cotton will be improved; the application of boron to corn and rice will advance the main growth period, The seeds mature about five days earlier.

Applying boron to rapeseed can reduce protein and increase fat content; applying boron to cucumber and tomato can increase vitamin C content; applying imported chelated boron fertilizer to apple and citrus can increase sugar content and reduce acid content.

The early-maturing effect of boron is particularly noticeable, and it has certain positive significance for the development of agricultural production in cold mountainous regions and double-cropping and three-cropping regions.

7 Promote root growth and development

Boron can promote the normal development of vascular bundles in the roots of legumes, and promote the sufficient supply of carbohydrates for rhizobia, thereby enhancing the nitrogen fixation ability of legumes, increasing the protein content, increasing the fiber content of hemp crops, and improving its quality.

Boron can form a complex with 6-phosphogluconic acid in crops, so that 4-phosphoerythronic acid cannot be formed (it is an important raw material for the formation of acid compounds), and when crops are deficient in boron, organic acids accumulate in the roots, and the roots Cell differentiation and elongation of the apical meristem are inhibited, suberization occurs, and root necrosis occurs.

Boron and alcohols, sugars and other compounds can form peroxides, thereby improving the supply of oxygen to the roots of crops, especially in the case of hypoxia, the application of boron fertilizers can promote the development of crop roots, so root and tuber crops such as sugar beet , potatoes, radishes, etc., the effect of applying boron fertilizer is better.

Boron can directly affect the development of crop reproductive organs, so it should be applied as soon as possible, but boron has poor ability to operate in plants, so it is better to spray it several times in small amounts.