Detailed Explanation of Key Field Management Techniques for Castor
Castor is a very important oil crop in China. The oil pressed from castor seeds has high viscosity and withstands both low and high temperatures, maintaining its original state without deforming under low or high temperatures. Castor is now grown on a large scale in more than 30 countries around the world. China is also one of the major castor-growing countries. Growing castor requires everyone to do a good job of management, so how should castor be managed? Let's take a look at the field management techniques for castor together with the editor!
1. Thinning and Earthing Up
Observe the growth of the seedlings. When castor seedlings grow to about 9 cm, thin them appropriately, pull out the overly weak and overly dense seedlings, then fill in with healthy castor seedlings, and do this together with intertillage and earthing up. When castor grows to about 18 cm, it can be finally thinned to a stand, leaving one strong-growing seedling per planting hole; after final thinning, carry out intertillage and earthing up once more. Then, when it is about to flower, carry out the last intertillage and earthing up to stabilize the castor plants, promote root growth, and provide wind resistance and lodging resistance.
2. Pinching and Shaping
During the growth of castor, in order to prevent the plants from growing excessively, when castor produces 9 true leaves, promptly cut off the tip of the main stem. Then, according to the growth of the castor, appropriately cut off the tips of the branches as well to promote branch growth and increase yield. Control the height of the plants to make later harvesting easier. When the plants are relatively tall and have many branches, pay attention to doing a good job of pruning and shaping. Promote the production of new branches and prevent and control pests and diseases. When pruning, do not break off branches, to prevent other damage to the plants. After pruning, do a good job of topdressing and strengthen water management to promote plant growth.
3. Overwintering Management
After harvesting perennial castor, preparations for overwintering should be made. In areas with snow, wrap the castor plants with rice straw and remove it in spring. If there are plants that have already suffered freeze damage, cut off the damaged parts, disinfect the wounds after cutting, and then wrap them with poultry manure. After temperatures rise in spring, they will sprout and emerge again. In areas with lower temperatures, cut off the main stem before winter, then wrap the aboveground parts with manure. Bury them in the soil, and after the snow gradually melts and temperatures rise, uncover them, and they will sprout and grow branches.
4. Disease Control
The prevention and control of pests and diseases in castor is very important. The most common pests and diseases of castor include wilt and cutworms. When planting, we must pay attention to doing a good job of pest and disease prevention and control. No matter what pest or disease it is, the damage to castor is very great, and in severe cases it can lead to no harvest from the whole field. Observe the growth of castor regularly, and achieve early discovery and early treatment of pests and diseases to avoid greater losses. Prepare medicines for treating all pests and diseases, and make sure nothing goes wrong.
That's all for today's introduction. Castor is somewhat toxic, so avoid eating castor. The younger the age, the higher the possibility of poisoning, so everyone must pay attention, prevent children from eating it by mistake, and strengthen management. That's all for today's introduction. This article is for reference only. If you want to learn more related information, please continue to follow us!