Tutorial on the Latest High-Yield Cultivation Techniques for Hybrid Rice
Compared with ordinary rice, hybrid rice has advantages in various aspects: strong growth capacity, well-developed roots and numerous grains. It is a rice variety with very high economic value, and most rice varieties in our country today are mainly hybrid rice. So how can hybrid rice be planted to achieve high yields? Below, the editor brings you the high-yield cultivation techniques for hybrid rice. Let's take a look!
1. Land selection and sprouting
Before planting, we should choose a plot that is sheltered from the wind, has sufficient sunlight, is rich in organic matter, has few weeds, has normal drainage and irrigation, and has sufficient water sources. Then apply sufficient base fertilizer in the field, mainly decomposed farmyard manure, together with an appropriate amount of calcium and potassium fertilizer. Break up and level the soil, and according to the planting area, control the specifications for preparing the seedbed and making beds. Then sun-dry the seeds for about two days, wash them once with water, and remove shriveled and empty grains. Then soak the seeds in carbendazim for one day. After soaking, wash them clean and put them in a bucket for sprouting. When more than half of the seeds have sprouted, they can be sown.
2. Sowing management
Before sowing, prepare the seedling bed according to the field specifications. After the seedling bed is prepared, spray water once more to soak the soil thoroughly. Then spread the seeds evenly and comprehensively over the seedling bed, gently press them into the soil, and cover with a layer of fine soil, mainly so that the seeds are not visible. After sowing, do a good job of weed control. When weeding, chemical weeding methods should not be used, and watering should be done appropriately according to the water content of the seedling bed. Usually, rice needs to be watered about 4 times throughout the entire growth period. Then, when the hybrid rice grows one true leaf, one heart leaf, and 7 days before transplanting, apply urea as a topdressing each time.
3. Timely transplanting
Before transplanting, first do the preparatory work for the main field for planting, pay attention to the moisture in the main field, and block the drainage outlets well to prevent water loss. Then apply fertilizers such as ammonium bicarbonate and superphosphate in the main field to provide sufficient nutrients for the seedlings. Then, when the seedlings in the seedling bed have grown for about one and a half months, transplant them at the right time. When transplanting and planting, pay attention to controlling the density. Generally, in rural areas there are special density planning tools, which can be used flexibly. Insert about 3 seedlings per cluster to improve the lodging resistance of rice, increase yield, and prevent some unnecessary losses.
4. Field management
When rice seedlings enter the greening stage, water once promptly with greening water, but the amount of water should not be too much; a small amount of water promotes tillering. Pay attention to controlling the number of tillers to prevent excessive ineffective tillering, which consumes too much nutrition and affects the growth of rice. Control the growth of seedlings, and only when turned-white roots appear is the goal of seedling control achieved. Then, about one week after transplanting and planting, apply urea as a topdressing promptly, and combine topdressing once with watering during the greening stage. Finally, use herbicides reasonably, and spread them evenly per mu to achieve the weeding effect; it is best to carry this out together with the topdressing work.
The above is a brief introduction to the high-yield cultivation techniques for hybrid rice. The planting methods for hybrid rice are actually similar to those for ordinary rice. The main difference is the variety, so after choosing a good variety and doing a good job of seed disinfection and sprouting, we can completely plant hybrid rice according to the planting methods for ordinary rice. That is all for today's introduction. This article is for reference only. Thank you all for reading and supporting.