Late Broadcasting Techniques for Rice and Buckwheat
Generally, the delayed growth period of late-seeding wheat is short, and each growth period is pushed backwards in turn so that grain formation and grouting are in mid-late-May to early-June, often bringing this period to a higher temperature. As a result, the filling period is shortened, the photosynthetic potential and photosynthetic productivity are reduced, and the 1000-grain weight is smaller than that of timely sowing. It can be seen that the late production and quality of production are worse than that of early sowing. According to the reproductive characteristics of late sowing wheat, the following remedial measures should be taken:
First, it is necessary to select strong spring varieties with short growth period and endurance. If it is late to broadcast plots, attention should be paid to the following aspects in the selection of varieties: Use of varieties with medium growth period. Such as: Yangmai 13 and other varieties of Yangmai and Ningmai 13 and other varieties of Ningmai. At the same time, we must select the seeds and select seeds that are full and strong in germination.
Second, germination should be sowed. Since the temperature gradually decreased after November, the time for germination of wheat was delayed. Shallow sowing or pre-germination should be used. Warm water should be used for germination, and water temperature should be maintained at 35 degrees for one day to allow the wheat to absorb enough water. To ensure the emergence of seedlings as soon as possible.
The third is meticulous site preparation. You can take advantage of the fine weather to implement deep turning. If the soil moisture is too humid, it is better to adopt shallow rotary tillage or reverse shallow rotary tillage so as to achieve shallow rotary tilling, ditching, sowing, and covering earth at one go. Pay attention to the ditch must be deep and straight, adjust the soil moisture, so that the emergence of rapid and orderly.
Fourth, we must appropriately increase the amount of seeds used, so that the basic seedlings to reach the appropriate number of spikes of the species to achieve seedlings to protect the ear. The amount of seed for a single mu of land does not exceed 20 kg, and a reasonable group structure can be achieved.
Fifth, increase the amount of nitrogen fertilizer application. The basal fertilizer increased nitrogen and phosphorus and prevented the nitrogen consumption from competing with the wheat seedlings when the rice straw returned to the field, resulting in the emergence of seedlings in the wheat seedlings.
Sixth, give full play to the role of the main stem and big ears. Large amount of wheat is used for seeding, so the group of young wheat seedlings is large. Because of late sowing, the emergence of wheat seedlings is late, the spikes are low, and the fertilizer application is delayed to accelerate the decay of invalid tillering. the Lord. Therefore, through fertilizer and water operations, late planting will be done late, no greediness, no premature aging, and stable production and high yields will be achieved.
Tilmicosin Dosage,Tilmicosin Antibiotics,Tilmicosin Animal Health,Tilmicosin Pneumonia
Shandong Shengli Bioengineering Co., Ltd , https://www.shenglipharm.com