Can you grow rhubarb on dry land? What land can t be planted with rehmannia

Rhubarb seeds are most suitable for sowing at 15 to 20 degrees, and as long as the temperature is suitable, they can germinate after two days and nights.

There are two methods of rhubarb seed propagation: seedling raising and direct seedling.

1) Seedling. It is divided into spring sowing and autumn sowing. Spring sowing is sown after the local soil tillage layer thaws. It is generally better to sow in autumn, because the germination rate of the seeds harvested in that year is high.

Sowing is divided into strip sowing and spreading. The sower is furrowed horizontally, the furrow spacing is 25 30 cm, the sowing width is 10 cm, the depth is 3 5 cm, and the seed amount is 3 4 kg per 667 m2; Spreading is to spread the seeds evenly on the furrow surface, every 2 3 cm there is 1 seed, after sowing cover with fine soil, to cover the seeds as the degree, and finally the furrow surface is covered with grass, every 667 meters 2 with a seed amount of 5 7 kg. If the soil is dry, water the furrow surface 3 to 4 days before sowing to ensure the smooth germination of seeds.

2) Live streaming. In early autumn or early spring, the live broadcast is sown in holes according to the row spacing of 60 80 cm and the plant spacing of 50 70 cm. The depth of the hole is about 3 cm, 5 6 grains are sown in each hole, and the soil is covered with 2 cm. 667 kg of seeds per 2 m. 3. <>

New rhubarb seeds have produced new seeds in July, and can be planted in spring, summer and autumn during the rhubarb planting season. Rhubarb planting takes 3-5 years, the yield per mu is about 600 kg, and the medicinal herbs are 12-15 yuan kg. Rhubarb is a perennial commonly used Chinese medicinal material, which is easy to grow and manage, with high yield, and can be planted on hillsides and hilly land.

Rhubarb likes cool climate, afraid of high temperatures, suitable for growth at a temperature of 15 25 degrees, the temperature exceeds 28 degrees and grows slowly, it will die of heat if it lasts too long, it grows well in the mountains above 1500 meters above sea level, it grows faster in 4 June, grows slowly in July and stops growing, and resumes rapid growth after 8 September, the plant grows to the third year before flowering and fruiting, and the seeds germinate, it is most suitable for 15 20 degrees, as long as the soil is moist and the temperature is suitable, it can germinate after two days and nights. The seed life span is only one year under natural conditions, and it is afraid of water accumulation, and it is easy to rot roots in high temperature and rainy seasons. So dryland anvils grow rhubarb.

Rehmannia likes warm climate, more cold-tolerant, and is suitable for cultivation in sandy loam soil with sufficient sunshine, deep soil layer, loose soil, fertile neutral or slightly alkaline, and fertile clay soil can also be planted. Do not work continuously.

It is advisable to choose grasses for the previous crop, and it is not advisable to choose the land that has been planted with cotton, sesame, beans, melons, etc., otherwise the disease will be serious.

Rehmannia is a perennial herbaceous plant. It is distributed in Liaoning, Hebei, Henan, Shandong, Shanxi, Shaanxi, Gansu, Inner Mongolia, Jiangsu, Hubei and other provinces and regions. In addition, it is cultivated all over the country and abroad.

Rehmannia is a perennial herbaceous plant of the family Radix Radix, mainly cultivated, and is wild on the slopes of mountains and roadside wastelands at an altitude of 50 1100m.