When is sugarcane best with a water retention agent? Please keep this guide!

People are diligent and spring comes early

Sugarcane cultivation is busyIt is now a critical period for spring plowing and preparation.

Many sugarcane farmers are busy planting sugarcane.

Start the new year with a "sweet business".

Most of the sugare areas in China are distributedHilly dryland, due toNatural precipitation is unevenPoor soil water retentionWater conservancy facilities are not perfectand other reasons, which occur to varying degrees every yearDroughtAmong them, summer and autumn drought are the most harmful disasters.

In order to improve the drought resistance of sugarcane, certain results have been achieved in cultivation through the selection of drought-resistant varieties, deep ploughing and subsoiling of sugarcane land, and mulching with plastic film or cane leaves.

In recent years, many sugarcane areas have been using themAgricultural and forestry water retention agentIt has achieved the purpose of good water saving and quality improvement.

During the growing period of sugarcane planting

When is the best time to apply agricultural and forestry water retaining agents?

Today, I'm going to take you to find out.

In 2003.

Guangxi University College of Agriculture for different periods.

Effects of water-retaining agent on drought resistance, yield and quality of sugarcane.

Relevant experiments were carried out.

The sugarcane variety tested in this experiment was Yuetang 93 159, which was planted on March 15, 2003.

Before planting, the planting trench is manually dug and loosened 30cm, the planting trench is 25cm deep, and each row is 667m to apply 75kg of calcium, magnesium and phosphorus fertilizer, 20kg of potassium chloride and 12kg of urea, and the fertilizer is evenly spread in the planting ditch and mixed with the soil.

In the experiment, four treatments were set up at the next seed stage, the early stage of tillering and the early stage of elongation, and 15kg of water-retaining agent per 667m and no water-retaining agent were applied as control, which were represented by A, B, C, CK.

The results of the experiment are as follows.

As can be seen from Table 1, the water content of the soil without water retention agent (CK) on September 12 was 1398, but the water content below 14 did not appear until October 12 after each treatment of the water-retaining agent.

It can be seen that the date of dry early stress was at least 20 days later than that of no water-retaining agent treatment after one irrigation or heavy rain (40 mm rainfall) after one irrigation or heavy rain (40 mm rainfall).

And in the three treatments of A, B, and C of the water-retaining agentIn the C treatment of water-retaining agent at the initial stage of elongation, the soil water content was always higher than that of the A and B treatments during the water outage period.

From the following table, the monthly growth of each treatment decreased to varying degrees during the period from July 31 to October 30, while the growth of sugarcane treated with water-retaining agent was higher than that of CK treatment.

This result illustratesAfter applying water-retaining agent to sugarcane, the losses caused by drought disasters can be reduced for a certain period of time。In this experiment,The C treatment of the water-retaining agent at the early stage of elongation had a larger monthly growth than that of the A and B treatments.

From the yield results, the actual harvested cane stem yield c> b> a> ck.

Among them, the yield of C treatment in the early stage of elongation was 1225. The yield of B treatment in the early stage of tillering was 9 higher than that of CK56. The yield of a treatment at the next seed stage was 8 higher than that of CK94％。

However, according to the analysis of variance, there was no significant difference in yield between the treatments at the lower planting stage, the early tillering stage and the early elongation stage.

According to the results of the following table, the sucrose content of CK was the lowest, and the a, b, and c of the water-retaining agent were relatively low due to the fact that the water-retaining agent could maintain a certain amount of water and was less affected by drought during the drought stress, so the sucrose accumulation could be carried out normally, and the sucrose content was higher.

EspeciallyThe C treatment of the water-retaining agent was the highest at the beginning of elongation。11 In January, the average sucrose content A, B, and C of treatment were higher than those of CK. 96 percentage points.

And to ensure the effect of application.

In fact, the selection of water retention agent is also crucial.

When you buy agriculture and forestry water retention agents.

We should try to choose a source manufacturer with strong strength and strong R&D strength to buy.

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