What is the yield of silage corn per mu? What's the difference from eating corn? What are the technical points of feed production?

Silage corn is one of the three types of corn (grain corn, silage corn and fresh corn) according to harvest and use. So what is the yield of silage corn per mu? What's the difference from eating corn? What are the technical points of feed production? It is learned from Uncle Wu, a grower in Shandong, that under normal density and management in place, the yield of silage corn per mu is about 4,500 to 6300 kilograms.

What's the difference between silage corn and edible corn?

1. General corn can be divided into two categories: edible corn and special corn according to its use. forage corn is a kind of special corn with rapid growth and high yield. the general plant of forage corn is particularly tall, sometimes growing to 2.5 meters to 3.5 meters. The highest is up to 4 meters. Mainly to produce new straw, edible corn mainly to produce corn grain.

2. The best harvest time of forage corn is generally at the end of milk ripening or early wax ripening, the yield is the highest, and the nutritional value is better. The harvest time of edible corn must be after the late ripening stage, the selection of special forage corn varieties can get a very high yield, but some people use ordinary corn harvested in advance as feed, so the yield will be relatively low. Generally, under the condition of medium fertility, the yield of straw per mu of special forage corn varieties is about 460 tons, and that of ordinary edible corn stalks is about 2 tons.

3. Forage corn refers to a kind of crop whose ears, stems and leaves can be used as fodder. Forage corn, with high yield and rich nutrition, is known as the "king of feed" and is one of the most important feed sources for the production of animal products in the world. Planting forage corn can not only harvest certain grains as fine fodder, but also has good green degree of stems and leaves, rich nutrition and high yield, so it is a high quality feed for silage, formula feed or direct feeding.

What are the technical points for the production of silage corn feed?

Silage corn straw feed has the advantages of low nutritional loss, good palatability, freshness and long shelf life, so it is a high quality feed for dairy cows in winter. The key points of its production technology are as follows:

1. The shape of the silage cellar is generally square or rectangular, and the size depends on the size of the herd. Usually, 500 kilograms of compacted silage corn straw can be stored per cubic meter. The silage cellar had better be built of stone, brick and cement to avoid air leakage.

2. Harvest at the right time. Generally, green corn is harvested in the wax ripening period. At this time, corn straw has high nutritional content, high yield and proper moisture, so it is a good time to make silage.

3. Timely transport the harvested corn stalks to the silo site in time to prevent water evaporation, leaf loss and nutrient loss.

4. Whether quick loading and quick sealing can achieve fast beating, quick loading and quick sealing has a lot to do with the quality of silage. To cut the whole corn machine into 3 cm ~ 5 cm before loading the cellar, it is required to step on it while loading, and the more compacted it is, the better. When the silage corn straw is loaded to about 1 meter high, it is sealed with plastic film, and then compacted with soil cover to prevent leakage.

5. 40 ~ 60 days after opening the cellar and filling the cellar with silage corn straw, the cellar can be opened to feed the cattle. The excellent silage corn straw feed is yellowish green with sour taste and wine flavor, and the PH is 44.8.