Tell me how much you know about silage corn?

Silage corn is silage corn that is used to preserve the corn stalks that are still green or partially green after the autumn harvest for a long time. It can preserve its nutrients well, and the texture becomes soft, with fragrance, which can increase the appetite of cattle and sheep, and solve the shortage of forage in winter and spring. At the same time, the production of silage saves half of the floor space compared with stacking the same amount of hay, and is also conducive to fire prevention, rain prevention, mildew prevention and the elimination of crop pests on the straw.

The key to the technology of making silage is to provide the necessary conditions for the reproduction of lactic acid bacteria: First, in the preparation process, the raw materials should be as short as possible, and the cellar should be compacted tightly to remove the air in the cellar as much as possible. Second, the water content in the raw materials is about 75 (that is, when the water can be wrung out by hand and cannot be dropped), which is the most suitable for the reproduction of lactic acid bacteria.

When silage, it should be decided whether it needs to be sprinkled according to the greenness of the corn stover. Third, the raw materials should contain a certain amount of sugar, and the sugar content of general corn straw meets the requirements.

Silage corn is one of the three major types of corn (grain corn, silage corn, and fresh corn) according to harvest and use; It refers to a kind of corn that harvests all green plants on the ground including fruit ears during the suitable harvest period, and is chopped and processed, and is suitable for silage fermentation to make silage to feed cattle, sheep, etc. Compared with ordinary (grain) corn, it has the characteristics of high biological yield, good fiber quality, good greenness, dry matter and moisture content, suitable for closed silage by anaerobic fermentation. ‍‍

Silage corn refers to a kind of corn that harvests all green plants, including grains, during the suitable harvest period, and is processed and fermented to make green storage feed to feed cattle and sheep and other livestock. Generally, compared with ordinary corn, it has the characteristics of high biological yield, good fiber quality, good green retention, good disease resistance, dry matter and moisture, suitable for anaerobic fermentation, and closed silage. To put it bluntly, corn varieties with high disease resistance, high plant height, and high biological yield can be used as silage corn. ‍‍

The silage method of silage corn is also very simple, pull back the machined and crushed silage corn from the corn field, you can directly enter the silage corn cellar silage, and you don't need to add anything, as long as it is compacted and sealed! The best time for silage corn in Jilin Province is late August, which is also the best time for silage corn stalks, ear sticks, and dry matter! ‍‍

Silage corn can grow up to 4 meters tall and is thick and strong, which also ensures the high yield of silage corn, which can be more than twice as high as ordinary corn. Due to the good quality of silage corn, concentrate can be saved when feeding cows, which also saves the cost of feed for dairy cows, and cows fed silage can increase milk production by 10% to 15%. ‍

Silage corn is corn that has not yet reached maturity, the plant is tall and green, harvested with a silage harvester, crushed, and fermented in a large cellar to feed cattle and sheep. In the Northeast, it is generally used to feed dairy cows, and now is the best time to harvest.

When corn reaches the wax maturity stage, the basic dry matter content is about 30%, this is the best period, although the yield of green storage corn is high, but the starch content is very low, can not meet the needs of pastures, now not only the dry matter content reaches 30%, the starch content also reaches 30%, the dry matter content and starch content are about 30% when the ranch is purchased, so the green storage growers choose varieties is very critical, not only high yield, but also high starch content in order to obtain high benefits.

The water content of silage corn can reach 65% 75%, because all the effective nutrients of silage corn are present in the water, so much water content also ensures that the nutrients of silage corn will not be lost.

Green storage corn is a crop in the north to maximize land value-added.

Question 1: What is the basis for saying that the fragmentation rate of silage corn kernels is not less than 95%? Small waste? Is there a plausible explanation for 95%?

Question 2: When talking about the breakage rate of silage corn kernels, to what extent are the grains broken even if they are broken? Is the broken crack of the endosperm considered to be broken? How to determine broken or unbroken?

Question 3: How to scientifically detect the grain breakage rate?

When the big bud rice is still green, it is harvested and then processed and fed to cattle and sheep.

Silage corn. What are the differences between varieties and common corn varieties, and the plant types are different. Silage corn products are grown in tall plants, generally in meters, up to 4 meters in height, to produce fresh straw, while common corn produces corn kernels.

<> harvest time is different. The harvest period of silage corn is from the end of milk maturity to the beginning of wax maturity, and the milk line reaches 1 2 3 4 (or 1 2 milk stage to 1 4 milk stage) of the grain. At this time, the same is true for biological yield and nutritional value.

However, regular corn can only be harvested after the ripening period, when the milk line has completely disappeared and black layers have appeared.

Different uses. Silage corn is mainly used for feed, and common corn is not only used for feed, but also as an important food and industrial raw material. Corn silage.

The feed is nutritious and also rich in carbohydrates.

Vitamins and minerals. Cows fed corn silage produce 500 kg of fresh milk per year and save about a fifth of their concentrate feed. Doing a good job of corn silage can greatly improve the balance of green forage**.

The stems, leaves, fruits, and ears of silage corn can be used to make silage, and the nutrient loss of corn straw can reach 20% 30%, or even more than 40% after drying, while the nutrient loss after silage corn is only 5% 10%, especially can effectively preserve vitamins. The color is still green, sweet and sour wine aroma, tender and juicy, good palatability, and the digestibility can be increased by 20%.

Do a detailed explanation of the problem for a detailed interpretation of the problem, I hope it will help you, if you have any questions, you can leave me a message in the comment area, you can comment with me a lot, if there is something wrong, you can also interact with me more, if you like the author, you can also follow me, your like is the biggest help to me, thank you. That's all for sharing, if you like me, please follow me. If you guys have any ideas, you can let us know in the comments below.

The plant types were different, the tall plants of silage corn products were mainly used to produce fresh straw, and the common corn was mainly planted with corn grains. The harvest period of silage corn is from the end of milk maturity of the grain to the wax maturity stage, and the normal corn must be after the maturity period.

Green storage corn refers to the corn is not yet mature, and it is stored together with the corn stalk to become four ingredients, while conventional corn refers to the normal maturity of corn and storage in the form of corn kernels.

Different heights, different colors, different harvesting times, different uses, and different economic benefits.

There are many methods of silage corn stalks, and only the most basic general silage method is introduced here, which is convenient for the popularization and promotion of the vast number of rural areas.

1. Dig the cellar and choose a place with solid soil, high and dry terrain, leeward to the sun, and rain is not easy to wash away to build a silage cellar. The cellar shape is generally divided into round and rectangular, and the cellar wall is straight and smooth, impermeable to water and breathable. The width of the cellar should generally be less than the depth, and the better ratio is 1:

1 5-2, which is conducive to the weight of the raw material itself to compact it and reduce the amount of loss. The size of the cellar should be determined according to the number of silage and the number of heads of livestock, the diameter of the circle is generally between 1 7-3 meters, the depth is 3-4 meters, and the bottom should be in the shape of the bottom of the pot. Large-scale livestock farms should use rectangular cellars, with a width of 1 7-3 meters and a depth of 2 3-3 3 meters, and the length depends on the number of silage.

The corners of the rectangular cellar should be rounded to facilitate the descent and compaction of the raw materials. To reduce silage loss, a plastic film should be laid on the bottom and around the cellar.

2. The calculation of silage cellar capacity should be based on the moisture content of raw materials and the degree of chopping, and the weight of silage per unit volume (cubic meter) should be grasped first (for example, the weight of corn stover in the case of low water content, the weight of finely chopped per cubic meter is 430-500 kg; The coarser cut is 380-450 kg), and then multiplied by the volume of the cellar (the circular cellar is 3 14x radius 2x cellar depth; The rectangular cellar is the length of the cellar x the width of the cellar x the depth of the cellar, both in meters), that is, the weight of the silage in the cellar (kg).

3. To make silage raw materials, it is best to cut them on the same day and store them on the same day. Before loading the cellar, check whether the bottom and wall of the cellar are paved with "pads", whether the edge of the cellar is paved with reed mats (to prevent raw materials from being polluted and soil from entering the cellar), and then start the grass (the length of the chopping should not exceed 3 3 cm), and load it while crushing, and try to avoid the shredded raw materials being exposed to the sun outside the cellar for too long. The ingredients in the cellar should be spread out at any time.

If the raw material is too dry, sprinkle some water evenly. Every 30 cm or so needs to be compacted. Special attention should be paid to pressing around the cellar, and it is better to use a stone pestle to tamp it or rely on a tractor to suppress it.

When the cellar is filled layer by layer, it is dome-shaped at a height of 0 5-1 meters above the ground. When sealing the cellar, first cover a layer with plastic film, add a layer of soft hay, then add soil to tamp, and pat the surface smooth. After sealing, a drainage ditch should be dug 1 meter away from the mouth of the cellar, and the top of the cellar should be checked frequently for subsidence.

If a subsidence is found, it should be repaired again to prevent air and rainwater from entering.

Corn silage production process method.

1. Quality. Be sure to choose high-quality fresh corn stalks, the greener the leaves, the higher the nutritional value, not to choose dry, mildew and rust corn stalks, fresh corn stalks should be processed in time after harvesting, not stored for a long time to avoid heat production and corruption.

2. Moisture. The moisture content of corn straw for processing silage is 60% 67% is appropriate, and when the moisture content is too high, it should be properly dried or added to the appropriate amount of hay to neutralize the water, as long as the moisture is not less than 50%, there is no need to deliberately add water, only need to crush and compact.

3. Crushing. The fresh corn stalks are crushed into small pieces of about centimeters, so that the pressing is more compact to prevent air from entering, second, it is more conducive to fermentation, and third, it is convenient for cattle to eat when used.

4. Compaction. Generally, if it is 30 or 50 cm, it should be pressed once with a tractor, so that the air inside can be discharged as tightly as possible, and the capacity of the silage tank can be increased.

5. Sealing. After the filling is completed, the plastic cloth is used to cover, and the plastic sheet is covered with soil on top and around it to prevent air from entering, so that after 20 to 30 days of sealed fermentation, it can be fed to cattle, and each time it is used, it should be quickly taken and sealed again, so that it can be stored for more than a year without deterioration.

Generally, according to the different types of silage raw materials and harvest seasons, silage can be divided into corn silage, corn straw silage, forage silage, seedling and leafy vegetable silage, mixed silage, etc.

1) Corn silage refers to the corn varieties specially used for silage, which are harvested at the wax maturity period and the stems, leaves, and ears are chopped together to make silage. Because corn silage is harvested during the period when the nutritional value of corn is the highest, the nutritional value is significantly higher than that of corn stover silage. per kilogram of corn silage, containing 20 grams of crude protein, of which digestible protein grams; It is rich in vitamins, including carotene 11 mg, niacin mg, vitamin mg, vitamin SIU; The content of trace elements is also abundant, containing calcium mg, copper mg, cobalt mg, manganese mg, zinc mg, iron mg per kilogram.

And silage corn has high sugar content, and the silage made of corn has a sour, sweet, and fresh flavor, and moderate acidity (, it is a very popular feed for sheep.

2) Corn straw silage refers to the feed made by silaging a part of the corn straw whose leaves (1 3 1 2) are still green after the corn seeds are ripe and harvested.

3) Silage of seedlings and leafy vegetables is mainly made of peanut seedlings, sweet potato seedlings, sugar beet leaves, vegetables, leaves and other agricultural and sideline products as raw materials.

4) Mixed silage refers to silage made by mixing two or more silage raw materials together.

The most commonly used silage at present is corn silage and corn stover silage.

There are two main types of silage corn varieties in China, one is ordinary silage corn, which is mainly based on hybrids with tall plants and high biological yield and grain yield. Such as Zhongbei 410, Zhongyuan Dan 32, etc.; The second type is special corn, mainly high-oil silage corn, which is a new type of high-quality silage corn, the oil content of the grain is generally more than 6%, nearly 50% higher than that of ordinary corn, and the protein content is also high, with the characteristics of comprehensive nutrition and high energy. At present, the high-oil silage corn varieties promoted include Gaoyou 4515, Qingyou No. 1, Qingyou No. 2, and Youfang 67.

Silage corn should have strong disease resistance and good green retention. The fresh weight of biological yield is generally 5 8 tons per mu, and the maximum yield can reach more than 10 tons.