High-yield cultivation techniques of Rhizoma thunbergii

Speaking of heavy buildings, I believe that many people are not strange, and should have a certain understanding, so how much do we know about the planting technology of heavy buildings? Today, we go into the planting world and have an in-depth understanding of the seedling raising techniques and high-yield cultivation techniques of Rhizoma thunbergii, which have high nutritional and medicinal value. let's follow the editor to understand.

Seedling raising technique of Rhizoma Polygonatum seed

1. The technology is that the seedlings must be managed in time after emergence, but the seeds are generally sown in the first and middle of May. In late May, if there are seedlings and time seedlings or supplementary seedlings, water should be poured before the seedlings, and then the seedlings should be dug out with tools. Be careful not to damage the root system. The same is true when replenishing seedlings, it is necessary to irrigate the fixed root water once, make full use of the seedlings, and maintain a certain planting density so that they can grow rapidly.

2. The planting soil of the heavy building is required to be loose, and the root system of the heavy building is relatively shallow, so we should pay special attention to loosening the soil and weeding. In the rainy season, the soil is very easy to agglomerate, resulting in the growth of the root system is blocked and breathing is difficult. At this time, it is necessary to drain and prevent waterlogging in time. Still want to weed, weeding must be pulled clean, to avoid growing again.

High-yield cultivation techniques of Zhonglou

1. Cultivation techniques: Chong Lou can propagate through seeds and rhizomes. The time of sowing is in May. After soaking the seeds in clean water for one day before sowing, sowing the seeds with plant ash after disinfection, digging ponds on the ground when sowing, generally digging ponds at 3-5cm, and pond spacing at 30-35cm. Sow two or three seeds in each pond, cover the soil in time after sowing, and water the soil according to the dry and wet condition of the soil. Generally, seedlings can emerge after a week.

2. The growth law of the heavy building is that the plant blossoms, and the lower tuber will expand rapidly, so when the growth is exuberant, it is necessary to provide adequate nutrition, generally in June-August, so it is necessary to apply fertilizer in time in early June to ensure the growth. When applying fertilizer, try to apply farm manure and organic fertilizer, apply completely mature farm manure 2000-3000kg per mu, and apply 20-30kg calcium fertilizer per mu in the root, and then cultivate the soil.

Control of diseases and insect pests in heavy buildings

Blight disease

The main results are as follows: 1. The disease of Rhizoctonia solani is a disease in seedling stage, and it is serious in low temperature and rainy days from April to May. At the initial stage of the disease, yellow-brown water-stained disease spots appear at the base of the seedling stem, and spread around the base, causing the seedlings to wither, and in serious cases, the seedlings die and fall.

2. Prevention and control methods: strengthen the management of seedling bed, appropriate ventilation and light transmission. At the beginning of the disease, spray 65% chlorothalonil wettable powder 600 times dilution, 60% mancozeb wettable powder 500 times dilution or 62.2% chloramphenicol water agent 600 times dilution, once every 6 to 10 days, control 2 times for 3 times. Remove diseased plants and adjacent diseased soil in time. You still need to pay more attention when planting.

It is true that Rhizoma thunbergii has high nutritional and medicinal value, but the cultivation is not simple. Apart from land rent and labor, cultivation alone consumes a lot of resources. Therefore, artificial planting of heavy buildings is also a high-risk investment for us.