1、Prohibition of use foliar fertilizer for three periods

Crops should not be sprayed with foliar fertilizer during the flowering period, which is the stage of pollination and fruiting. Fertilization during this period can easily burn flowers, which is not conducive to normal pollination and thus reduce yield.

2、What flowers should not be fertilized?

Some annuals such as morning glory and moon flowers don't like fertilizer as it promotes more green foliage and fewer flowers. What month should you stop fertilizing perennials? Perennial flowers are a bit different than annuals.

3、Fertilizing Foliage & Flowering Plants

Some flowering plants, like Azalea, should not be fed at all while they are in flower. Fertilizer Types: Any prepared mixture for the type of plants you have is fine: for most foliage and flowering plants, an N-P-K analysis ratio that is close to 1-2-1 will give balanced growth.

News

Potted plants should not be fertilized while flowering—neither through soil fertilization nor foliar spraying. Fertilizing during the flowering period can easily lead to bud and flower drop.

The Dos and Don’ts of Foliar feeding

Here’s are the do’s and don’ts of foliar feeding for optimal plant growth: Don’t use a foliar spray when your lights are on. The combination of liquid formulas and heat from your lights will burn the leaves of your plants. Additionally, when a plant gets too hot, its stomata open to cool down.

Foliar fertilizing

To help determine whether foliar-applied macronutrients were being absorbed through leaves or through runoff, the plants in the trial were either left with bare soil underneath, or "skirted" to cover the soil and prevent any nutrients from making their way down to the roots.

Foliar fertilizer spraying technology and issues that need attention

Since foliar fertilizers are directly prepared into solutions for spraying, foliar fertilizers must be soluble in water. Otherwise, the insoluble substances in the foliar fertilizers will not only be absorbed after being sprayed on the surface of crops, but sometimes even cause damage to the leaves.

Foliar fertilizers are prohibited for the following 3 periods

1. Do not use during flowering period Crops should not be sprayed with foliar fertilizer in the flowering period, which is the stage of pollination and fruiting.

Don't use foliar fertilizer for three periods

During the flowering period of crops, foliar fertilizers should not be sprayed. The flowering period is the stage of pollination and fruiting, and fertilization during this period can easily burn flowers, which is not conducive to normal pollination and reduces yield.

Misunderstanding of foliar fertilizer spraying

Soybean, peanut, broad bean, kidney bean and other legume crops should be sprayed with fertilizer during flowering and pod setting. Cotton should be sprayed with fertilizer during the flowering and Bolling period. Molybdenum fertilizer should be sprayed before flowering.

In plant care, foliar fertilization is a common method that directly delivers nutrients to leaves, improving nutrient uptake efficiency. not all flowers are suitable for this approach. Below is a list of flower species that should avoid foliar fertilizer sprays, along with reasoning:

1. Azalea (杜鹃花): Azaleas prefer acidic soil, but foliar spraying may overly acidify the soil, hindering growth. Additionally, it can cause leaf yellowing and spotting. Thus, foliar fertilization is not recommended.

2. Orchid (兰花): Orchids thrive in acidic soil, but foliar sprays may alkalinize the soil, disrupting growth. Leaf yellowing and spotting may also occur. Avoid foliar fertilization.

3. Peony (牡丹花): Peonies prefer acidic soil, but foliar sprays risk alkalinizing the soil, damaging growth. Leaf discoloration and spots may result. Do not use foliar fertilizers.

4. Chrysanthemum (菊花): Chrysanthemums favor neutral or slightly acidic soil. Foliar sprays may alkalinize the soil, harming growth and causing leaf issues. Not recommended.

5. Paeonia (芍药花): Similar to peonies, paeonia requires acidic soil. Foliar fertilization may alkalinize the soil and lead to leaf problems. Avoid spraying.

6. Meadow Fawn (梅花): Meadow fawn (plup) prefers acidic or neutral soil. Foliar sprays may alkalinize the soil, affecting growth and causing leaf damage. Not advised.

7. Sweet Olive (桂花): Sweet olives thrive in acidic or neutral soil. Foliar fertilizers risk alkalizing the soil and damaging leaves. Avoid use.

8. Camellia (茶花): Camellias prefer acidic or neutral soil. Foliar sprays may alkalinize the soil, leading to leaf yellowing and spots. Not recommended.

9. Peach Blossom (桃花): Peach blossoms favor acidic or neutral soil. Foliar fertilization may alkalinize the soil and harm leaves. Avoid spraying.

10. Crape Myrtle (紫薇): Crape myrtles thrive in acidic or neutral soil. Foliar sprays risk alkalizing the soil and causing leaf issues. Not advised.

The above flowers should not be sprayed with foliar fertilizer solutions. When selecting fertilizers, prioritize soil pH compatibility and the plants’ specific needs. For uncertainties, consult a professional horticulturist or refer to reliable resources.