The role and method of rice in timely baking

From the end of effective tillering to the beginning of panicle differentiation, rice is the most drought-tolerant period. The production practice proves that moderate bake field can effectively promote the development of seedling roots and increase nutrient absorption, which is an important link for vegetative growth and reproductive growth.

First, the role of baking

1. Effective control of ineffective tillering, so that the seedlings enter a stable, to ensure that the main stem and early tiller have sufficient nutrient supply, increase the effective ear rate.

2. Create good conditions for applying panicle fertilizer, dwarf and strong stalks to attack the big ears.

3. Enhance the permeability of soil, accelerate the decomposition of organic fertilizers, reduce the harm of acid substances produced by the action of black roots and anaerobic bacteria, enhance the absorption capacity of roots, and expand the nutrient area.

4. Make the stems of the plants thick, control the height of the plants, and enhance the lodging resistance.

5. Reduce the humidity in the field, improve the ventilation and light transmission conditions, enhance the photosynthesis of the leaves, and reduce the occurrence of blight and rice blast.

6. Suning weeds, reducing soil consumption, saving water and reducing production costs.

Second, the baking method

Practice has proved that it is necessary to ensure that the early-maturing varieties of 667 square meters produce 450 kilograms, and the mid-late ripe varieties of 667 square meters produce more than 600 kilograms. There are two basiss: one is the number of seedlings, and the early maturing varieties need 700,000 basic spikes per 667 square meters. The large ear type of the variety reached 750,000, the dwarf type of the late-maturing variety reached 75-800,000, and the effective tiller was calculated at 65%. The second is time, about 50 days after the emergence of early-maturing varieties of early-water seedlings, about 60 days for mid-maturing varieties, and about 70 days for late-maturing varieties (the number of days of transplanting should be reduced). The number of seedlings is sufficient, but the time has not arrived or the time to reach the number of seedlings can not meet the requirements, high-yield rice fields should be baked. However, it is not possible to use the same time, the ground, and the seedlings. Plants grow prosperous, density is too large, the leaves are covered with thick green, premature sealing should be properly exposed to early sun, heavy sun; vice versa, late sun, light sun; seedlings should reach early or exceed the planned indicators early; the soil quality is poor, Heavy sand and thin earth can be light or not. Alkali large rice fields are not sun-baked or lightly sun-dried; the skins are hard to be sun-dried; people walk with their footprints and heavy sun; people walk without footprints, but the soil can't be whitish, and the leaves are dark green and yellow green to reach this standard. After it has dried up, it maintains shallow water and strong stalk joints. After the “jogging period”, it will catch up with the young ears and differentiate the fertilizer at the right time, so that the leaf color will turn green in time to promote the stalk and attack the big ear, and realize the big ear, the ear and the grain. Large, full, and high yield. (Man Hui)