A Complete Analysis of the Key Points of High-Yield Cultivation Techniques for Hybrid Rice
Compared with ordinary rice, hybrid rice has advantages in various aspects: it has strong growth capacity, a well-developed root system and more grains. It is a rice variety with very high economic value, and most of the 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 an adequate water source. Then apply sufficient base fertilizer in the field. The base fertilizer should be mainly decomposed farmyard manure, combined with an appropriate amount of calcium and potassium fertilizer. Break up and level the soil, and according to the planting area, control the specifications well as you level the soil and make beds. Then sun-dry the seeds for about two days, rinse them once with water, and select out the shriveled and empty seeds. Then soak the seeds in carbendazim for one day. After soaking, rinse them clean and put them in a bucket for sprouting. Once more than half of the seeds have broken white, they can be sown.
2. Sowing management
Before sowing, prepare the seedling bed according to the specifications of the main field. 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 no longer visible. After sowing, do a good job of weeding. When weeding, chemical weeding methods should not be used; water 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 a topdressing of urea each time.
3. Timely transplanting
Before transplanting, first do the preparatory work for the main field to be planted, 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 well. 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 the rice, increase yield, and prevent some unnecessary losses.
4. Field management
When the 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 many nutrients and affects the growth of the rice. Control the growth of the seedlings; only when white roots turn over is the goal of seedling control achieved. Then, about one week after transplanting and planting, promptly apply a topdressing of urea once, and apply fertilizer once together with watering at the greening stage. Finally, use herbicides reasonably, spreading them evenly per mu to achieve the weeding effect, and 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 method for hybrid rice is actually similar to the planting method for ordinary rice. The main difference is the variety, so after we select a good variety and do 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 everyone for reading and supporting.