How to fertilize Amomum villosum? A detailed guide to the latest fertilization methods
Amomum villosum is a perennial herb of the genus Amomum in the Zingiberaceae family. It is mainly distributed in Fujian, Guangdong, Guangxi and Yunnan in China, and has the effects of treating stagnation of spleen and stomach qi, indigestion of retained food, and abdominal pain and distension. In addition, it has high ornamental value, as its flowers and fruits can be enjoyed in summer. So how should Amomum villosum be fertilized when planting? Let's find out together.
1. Apply sufficient base fertilizer
When planting, you should choose fertile, loose sandy loam or light clay soil with strong water and fertilizer retention for planting. Damp broadleaf evergreen forest land and hillsides, valleys and flat land with convenient drainage and irrigation can all be used for planting, but sandy soil and heavy clay soil are not suitable for planting. Before planting, in combination with land preparation, apply 1500-2000 kg of decomposed barnyard manure or compost and 20-25 kg of superphosphate per mu, and spread it over the soil.
2. Fertilization during the growing period
For newly planted plants, fertilizer should be applied 2-3 times each year. The first is fertilization at the seedling stage, in order to promote seedling growth and make them grow vigorously. At this time, after applying the base fertilizer, you can apply 20-25 kg of superphosphate per mu, mixed with 1.5-2.5 kg of urea, and apply it in furrows. The second is in August. This fertilization is mainly to improve the cold resistance of the seedlings. You can apply 1500-2000 kg of decomposed compost per mu, combined with an appropriate amount of nitrogen-phosphorus-potassium compound fertilizer, spread it and then earth up.
3. Fertilization during the flowering period
When Amomum villosum enters the flowering period, its demand for nutrients is relatively high. In order to improve the fruit-setting rate and seed-setting rate, flower-strengthening fertilizer should be applied during the flowering period. During the flowering period, 1000 kg of decomposed manure water and 3-5 kg of urea can be applied per mu as a topdressing. When the buds of Amomum villosum are about to open, foliar spraying can be used to maintain trace elements. A mixed solution of low-concentration potassium dihydrogen phosphate and boric acid can be sprayed on the leaves, about 100 kg per mu.
4. Fruit-preserving fertilizer
During the fruiting period of Amomum villosum, if management is improper, fruit drop is very likely to occur. Therefore, in May-June, in order to prevent fruit drop, at the late flowering stage and young fruit stage, potassium dihydrogen phosphate solution should be sprayed in time to improve the fruit preservation rate. A 0.5% urea solution can also be sprayed, which can promote the expansion of young fruits and reduce fruit drop. After fruit harvesting, the plants consume a large amount of nutrients. At this time, in combination with cutting old withered seedlings, apply 2500 kg of decomposed compost, 50 kg of bean bran and 20-25 kg of superphosphate per mu, so that they can accumulate nutrients and restore tree vigor as soon as possible.
The above is an introduction to how to fertilize Amomum villosum. We hope it can help you. If you want to learn more related knowledge, please stay tuned to us.