Four Improvement Measures for Cultivation of Rice with Ultra-high-buckwheat Rice

October 26, 2024

The ultra-high buckwheat hull is a new type of light and simple cultivation technology developed in recent years. It has the advantages of saving time, increasing productivity, and protecting the environment. However, there are some areas for improvement in the application of the technology in the clay water network area in southern Jiangsu. Wuxi Huishan Agriculture and Forestry Bureau has carried out research and demonstration of the adaptation of ultra-high buckwheat rice in the province since 2001. Four breakthroughs have been made in key technological innovations, and 500 mu of land has been used in demonstration in the entire region. The average yield per mu has been reached. 572.6 kg, net income per mu of 275 yuan, an average of 112.1 yuan per mu than regular single-season rice. The sowing date was changed to the day of wheat harvest or the previous day. The sowing date of wheat set rice was changed from 7-15 days before the original wheat harvest to the day of wheat harvest or the day before. In southern Jiangsu, the soil is heavy, the groundwater level is high, and the discharge is not smooth. If the symbiotic period of wheat is too long, sowing must be done in the wheat field after sowing. Field wetting may affect the mechanical harvesting of wheat. Early planting, rodent pests, bird pests are serious, especially when the planting area is small, the seed loss rate as high as 20% -30%. Delaying the planting period is conducive to cultivation and avoiding dams, reducing the amount of eggs of the first generation of roundworms and reducing the number of insects by more than 80%.

All broadcasts must be carried out before cutting. The height of the wheat machinery is about 30 centimeters. The wheat straw is evenly distributed in the field and all are returned to the field. After the improvement, the seeded rice has high emergence rate, and the general seedling rate is above 90%. Therefore, the seeding rate of rice should not be too large. The seed amount per acre should be reduced from 6-7.5 kg to 3-5 kg, and the basic seedlings per acre are 8 Ten thousand - ten thousand strains.

Seed treatment was changed to soaking only non germinating non-mud rice seed germination after sowing, some of the seeds with too long buds easily hooked on the wheat straw, affecting the seedlings, and causing seed wastage. Seed mud coating, one is inconvenient to take the soil; the second is artificial, large area affect the efficiency of sowing; third is not conducive to spray spray sowing machine.

The seeds of the sown rice were immersed in Shibaoke and soaking seeds for 60 hours, and they were weighed and fixed evenly when they broke the chest. In the seedling stage, the water slurry management was changed to a fast-speed irrigation machine. After harvesting wheat from the afternoon to the evening, the whole field was filled with water once, quickly and quickly, and naturally dried. This saves water, saves costs, and is beneficial for all seedlings.

The wheat harvest period in southern Jiangsu is generally May 25-30. On the day of cutting wheat or on the day before, the rice seedlings will be planted on June 1-5. On June 8-10, a thin layer of water was established at the heart stage of two leaves of rice and a water layer was established after 3.5 leaf stage. In late June, it will enter the peak of childbirth. In early July, it will be sufficient for seedlings. In late July, it will reach its peak seedlings. The middle and late stages of paddy rice water slurry management methods are basically the same as conventional rice.

Chemical weeding was changed to "one for two kills and three for supplements." The delay of sowing date for wheat in rice sets does not cause germination. It can be blocked by pre-emergent herbicides, and the weeding effect is significantly improved. Specifically, it is divided into 3 doses: the first time in early June to 1 leaf stage of rice seedlings (about 10 days after sowing), spraying ml per acre; second time in mid-late June, 4 leaves of rice seedlings 5 leaf 1 heart period, with 1 package of rice straw and no straw (15 grams) mixed with urea, to prevent broad-leaved weeds; the third time in early July rice seedlings 6 leaves in front of a heart, killing 30 grams per acre with Or quick killing 50 grams, to eliminate grass weeds and other grass weeds, the overall effect of up to 97%.

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AUSTAR Goup , https://www.hansencleanroom.com