Sorghum is usually planted in which month and needs to be fertilized three times. Which three times?

Sorghum is one of the common crops in northern China. Because of its high yield and easy planting, it is loved by many farmers. Sorghum planting time is generally from March to April every year, and a few areas will choose to sow in May to June every year. The specific sowing date should be determined according to the local weather conditions. Sorghum should be fertilized three times in the planting process, namely the first base fertilizer, the second seed fertilizer and the third biological bacterial fertilizer.

Sorghum can be sown from March to June every year. According to the weather, sorghum is a high-yield crop. The typical feature of this crop is that the ear is very long, and there are many grains on each ear, which are very full and have high yield. March to June is the best time to sow sorghum every year. Generally, spring sorghum starts sowing from late March to mid-April, and summer sorghum will last until late May or even late June of the lunar calendar. The specific sowing date depends on the local weather and temperature. If the sowing time is too long, it is easy to be affected by cold current, and the seeds should not survive after emergence. On the contrary, if the sowing time is too late, the maturity of sorghum will be delayed because of low temperature weather.

You should choose a good place before planting sorghum. In general, sorghum is planted in sloping fields, mountainous areas and sunny places. The weather in such areas is generally good, and the sowing time can be advanced. On the contrary, the planting of sorghum is relatively low and vulnerable to natural waterlogging. At this time, the sowing time should be postponed appropriately. In the choice of soil, as far as possible, choose the land with loose soil, good air permeability and drainage as the planting land, and the planted sorghum has a higher yield. Before harvesting sorghum, it is necessary to deeply plow the land 1 2 times to remove weeds in the field, so as to ensure that sorghum plants absorb enough nutrients and grow more vigorously.

Fertilization should be applied before and after, and there is still a great demand for fertilizers such as basal fertilizer and ammonium nitrate sorghum in rural areas, and a large amount of fertilization is needed before and during planting. Before sowing, the land where sorghum is planted should be plowed first, and then base fertilizer should be applied in it. The amount of fertilization is about 2000 to 3000 kilograms per mu. When preparing for sowing, 8 ~ 65,438+00 kilograms of ammonium nitrate should be applied per mu, so that the planted sorghum seedlings can absorb enough nutrients and grow rapidly. The base fertilizer can be NPK compound fertilizer or decomposed farmyard manure. The purpose of fertilization is to make sorghum yield high and stable.

The second fertilization should supplement and highlight the seed fertilizer, which has strong drought tolerance. However, the demand for fertilizer is relatively large at the stage of young panicle formation and milk ripening. At this time, seed fertilizer needs to be applied, and in order to increase the yield, irrigation should be carried out properly. If fertilizer is applied in rainy season, the amount of water should be controlled well, and not too much as far as possible, so as not to flood the roots of sorghum. When applying seed fertilizer, it can be sprayed evenly, and each sorghum plant should be spread in place as far as possible to promote nutrient absorption.

The growth of sorghum is gratifying by adding biological bacterial fertilizer, and it is necessary to add biological bacterial fertilizer until the late growth stage of sorghum, which can make the growth of Highlight more gratifying at jointing and booting stages. The direct function of biological bacterial fertilizer is to improve the soil, which can reduce some diseases and insect pests in the growth process of sorghum. Rational utilization will increase sorghum yield and improve sorghum quality to a certain extent.

Last night, studio sorghum can be sown from March to June every year, and fertilizer should be applied three times during the growth process, namely base fertilizer, seed fertilizer and biological bacterial fertilizer. Pay attention to the amount of fertilizer applied each time and water it in proportion, which can make sorghum yield higher.