Fertility fertility The wheat precision and semi-precision sowing technique is a cultivation technology system with high yield, stable yield, low consumption, high economic benefit and good ecological benefits. The precision seeding technology is based on better soil fertility, fertilizer and water conditions, appropriate reduction of basic seedlings (80,000 to 120,000 basic seedlings/mu), relying on tillering and panicle formation, and using comprehensive cultivation techniques to make panicles and feet, Spike large, many grains, grain weight, high yield. In medium-fertility plots or high-fertility late-broadcast plots, as well as in fields with poor cultivation techniques and management standards, semi-precision (13 to 160,000 basic seedlings/mu) seeding techniques are used, based on a certain panicle number, The main attack is on the ear and it is highly productive.
Selected varieties of early buckwheat used buckwheat 38, Yannong 19, Xinmai 18, Huai Mai 20, buckwheat 19, buckwheat 50, buckwheat 52 and other varieties; late buckwheat can choose buckwheat 33, buckwheat 30, Yang Mai 158 and other varieties.
Reduce the sowing amount and timely sow the current high-yield field crops with a yield of more than 500 kilograms per mu in the Huaibei drought-logging buckwheat. The basic seedlings per acre can be controlled at 12 to 150,000. If the seedlings are planted earlier than the end of September and early October, if they can guarantee a complete seedling Basic seedlings can be reduced to 10-120000 per mu. Late buckwheat seedlings are planted between October 20 and the end of October. The basic seedlings per hectare range from 180,000 to 200,000.
The scientific fertilization applies 2000~2500 kg of high-quality farmyard fertilizer per acre, 15 kg of pure nitrogen, 10-15 kg of phosphorus pentoxide, 5~7.5 kg of potassium oxide, and the ratio of nitrogen, phosphorus, and potassium is 1.0:0.7~1.0:0.3~ 0.5, add 1~2 kg zinc fertilizer per acre. Fertilization method: 50% of nitrogen fertilizer is used as base fertilizer, and the rest is used as top dressing, and phosphorus, potassium, zinc fertilizer and organic fertilizer are all applied. Promote the deep application of chemical fertilizer technology and "nitrogen fertilizer shift" technology, postponed fertilizer to the jointing, booting period before and after. Late buckwheat fertilizer can be returned to the early stage. Vigorously promote the technology of returning straw to the field, and return 200 to 300 kilograms of straw per acre.
Cultivate strong seedlings before winter. Seedlings of the main stems of winter and winter varieties are generally 6-7 pieces, 5-8 plants per tiller, and the total number of stems per acre before winter is 70-80. Million, it is advisable to reach 900,000 (not more than 1 million) during the peak period of jointing.
Planting enough seeds to increase the quality of sowing When sowing, the moisture content must reach 75% to 80% of the field capacity, and it is required that the seeds be uniform, have the same depth, and have accurate sowing rates.
Fat sea has a mild diarrhea effect. Its mechanism is that the increase of intestinal contents after taking fat sea orally can produce mechanical stimulation, which results in the occurrence of diarrhea caused by the increase of reflex intestinal peristalsis. For anesthetized dogs, the intestinal peristalsis can be significantly increased by soaking fat sea overseas cortex, soft shell and kernels separately. This effect can be antagonized by atropine. Rabbit intestinal peristalsis in vitro was increased by the extract of benevolence, but the effect of outer skin and soft shell was not obvious.
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