In the process of heading and fruiting, late rice needs sufficient nutrients. At this time, the soil has little residual fat, the weather turns cold, the fertilizer decomposes slowly, and nutrients are often insufficiently supplied. Therefore, timely re-application of strong tail fertilizer, supplement the required nutrients, improve effective tillering, can achieve the purpose of increasing production. How to apply strong tail fertilizer to late rice?
First, the redness of the foot, the application of attack and panicle fertilizer
Before and after the "autumn", if the seedlings have been retreated (color) for many days, the stems are hard and the feet are bare, and the panicle fertilizer can be applied. This fertilizer can promote the late stage of the ear, reduce the degradation of the flower, and make the ear larger. However, the stems and flag leaves of the seedlings have not yet been set, and the fertilizer cannot be applied too much. Generally, about 4 kg of potassium sulfate can be applied per mu, so that the stems are sucked to the fertilizer, and the leaves do not become wider and longer, such as dosage. Too much, the leaves are elongated, the stems are weak, not only the fertile fertilizer, but also the pests and diseases. If there is no chemical fertilizer, it can be applied to 250 kg of decomposed pig cow dung and 300 kg of fire-burning soil. If the redness is not enough, it cannot be fertilized. In the end, what is the color of the stems and leaves to be red enough? If the following performance is sufficient, the tail fertilizer can be applied. 1 He Miao "four-leaf green, two leaves yellow", that is, the upper part has 3 to 4 leaves of greenish green, and the foot leaves have two pieces of chlorosis to dry. When people walk down the fields, the leaves will not be bound, indicating that the leaves are straight and the leaves are dry. 2 Look at whether the leaves of the main stem and the tiller and the lower leaves of the flag leaf are neat and uniform. If the unevenness is uneven, the tiller is weak and the nutrient is insufficient. If there is no such performance, even if the redness is not enough, the ear fertilizer should be slow.
A week or so after the "autumn", it is the time for the late rice to be applied to the panicle. At this time, the main blade of the sword has been extracted, and the flag leaf of the split ear is also extracted half. After fertilization, the leaves are no longer long, the heads are quick, the ears are large and the grains are full.
Second, "cold dew", "fog down" attacking fertilizer
After the "cold dew", you can apply 1 strong grain fertilizer. This fertilizer can promote heading and reduce necking, so that late rice can be filled quickly, empty particles are less, and grain weight is increased. Generally, 4-5 kg ​​of ammonium sulfate is applied per mu.
When is this fertilizer applied? The diagnostic method mainly depends on the color of the grain and the stem. When the head is not taken, the ears are broken. For example, half of the grain in the tail is cyan, and the branch is also cyan, indicating fat feet; if the last few grains are white, and the branches are yellowish white, it means lack of fertilizer. After heading, there is less neck, grain and branches are green, which is fat foot; such as the grain of the ear and the neck, the branch of the ear is integrated, the spread is very slow, the grain and the branch are yellow-green, which is lack of fertilizer. In short, look at the performance of the ear can not be applied, the performance of the fat foot is not applied or late.
Before the "Colly Drop", the elbow has been grouted. For example, the first leaf sheath under the flag leaf begins to turn waxy yellow, indicating that the absorbed nutrient is insufficient, and the in vivo inventory is started. If it is not fertilized, the stored nutrients will be used up quickly. Easy to dry yellow, should apply 1 tail fertilizer.
This time, the fat can make the ear branches not dry early. Rice roots can only have the ability to absorb fertilizer, so that the above-ground part can grow normally, so that nutrients can be produced and nutrients can be transported to the ears. Applying this strong tail fertilizer can increase the seed setting rate and increase the grain weight, especially for the grain filling of the base of the ear, which has obvious effects.
It is worth mentioning that if human excrement or other soil-fertilizer is used as the strong tail fertilizer, it should be applied a few days in advance due to slow decomposition, and the effect is good.
First, the redness of the foot, the application of attack and panicle fertilizer
Before and after the "autumn", if the seedlings have been retreated (color) for many days, the stems are hard and the feet are bare, and the panicle fertilizer can be applied. This fertilizer can promote the late stage of the ear, reduce the degradation of the flower, and make the ear larger. However, the stems and flag leaves of the seedlings have not yet been set, and the fertilizer cannot be applied too much. Generally, about 4 kg of potassium sulfate can be applied per mu, so that the stems are sucked to the fertilizer, and the leaves do not become wider and longer, such as dosage. Too much, the leaves are elongated, the stems are weak, not only the fertile fertilizer, but also the pests and diseases. If there is no chemical fertilizer, it can be applied to 250 kg of decomposed pig cow dung and 300 kg of fire-burning soil. If the redness is not enough, it cannot be fertilized. In the end, what is the color of the stems and leaves to be red enough? If the following performance is sufficient, the tail fertilizer can be applied. 1 He Miao "four-leaf green, two leaves yellow", that is, the upper part has 3 to 4 leaves of greenish green, and the foot leaves have two pieces of chlorosis to dry. When people walk down the fields, the leaves will not be bound, indicating that the leaves are straight and the leaves are dry. 2 Look at whether the leaves of the main stem and the tiller and the lower leaves of the flag leaf are neat and uniform. If the unevenness is uneven, the tiller is weak and the nutrient is insufficient. If there is no such performance, even if the redness is not enough, the ear fertilizer should be slow.
A week or so after the "autumn", it is the time for the late rice to be applied to the panicle. At this time, the main blade of the sword has been extracted, and the flag leaf of the split ear is also extracted half. After fertilization, the leaves are no longer long, the heads are quick, the ears are large and the grains are full.
Second, "cold dew", "fog down" attacking fertilizer
After the "cold dew", you can apply 1 strong grain fertilizer. This fertilizer can promote heading and reduce necking, so that late rice can be filled quickly, empty particles are less, and grain weight is increased. Generally, 4-5 kg ​​of ammonium sulfate is applied per mu.
When is this fertilizer applied? The diagnostic method mainly depends on the color of the grain and the stem. When the head is not taken, the ears are broken. For example, half of the grain in the tail is cyan, and the branch is also cyan, indicating fat feet; if the last few grains are white, and the branches are yellowish white, it means lack of fertilizer. After heading, there is less neck, grain and branches are green, which is fat foot; such as the grain of the ear and the neck, the branch of the ear is integrated, the spread is very slow, the grain and the branch are yellow-green, which is lack of fertilizer. In short, look at the performance of the ear can not be applied, the performance of the fat foot is not applied or late.
Before the "Colly Drop", the elbow has been grouted. For example, the first leaf sheath under the flag leaf begins to turn waxy yellow, indicating that the absorbed nutrient is insufficient, and the in vivo inventory is started. If it is not fertilized, the stored nutrients will be used up quickly. Easy to dry yellow, should apply 1 tail fertilizer.
This time, the fat can make the ear branches not dry early. Rice roots can only have the ability to absorb fertilizer, so that the above-ground part can grow normally, so that nutrients can be produced and nutrients can be transported to the ears. Applying this strong tail fertilizer can increase the seed setting rate and increase the grain weight, especially for the grain filling of the base of the ear, which has obvious effects.
It is worth mentioning that if human excrement or other soil-fertilizer is used as the strong tail fertilizer, it should be applied a few days in advance due to slow decomposition, and the effect is good.
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