First, use fine varieties
Select tightly packed balls, not easy to pull vines, suitable for dense planting of early maturing varieties. Such as "China Gan 11", "Lugan 1", "Zhong Gan 12" and other varieties.
Second, timely cultivation of strong seedlings
1. The outstanding problem in determining the spring cabbage production in the sowing date is unripe convulsions because cabbage is a vernalized vernalized crop. If seeding is too early, the seedlings grow too much, and when it meets the low-temperature conditions, the vernalization stage is completed, causing early convulsions, so it is appropriate. Sowing.
2. Seedlings for seedbed preparation before sowing should be applied enough to decompose large circle of manure or earth miscellaneous fertilizer, and use carbendazim to disinfect and deepen.
3. Seed treatment and seed sowing were soaked in warm water at 18°C, and then maintained at 15°C to 18°C ​​for germination. In the sunny morning, fill the bottom water. After the water seeps, the germinated seeds will be evenly spread on the surface. The soil will cover 1cm and the seeding rate will be 4g per m2. The seedbed area per 667m2 will be 5m2.
4. Do not ventilate the seedbed before the emergence of the seedlings. The daytime temperature should be kept between 20°C and 25°C, and at night it should be between 1°C and 16°C. Appropriate ventilation after the emergence of seedlings, daytime temperature 18 °C ~ 20 °C, night 10 °C ~ 12 °C, in the seedlings 5 ​​true leaves after the temperature can not be lower than 10 °C, to prevent seedlings through the vernalization stage, the occurrence of pre-convulsions.
Third, fine soil preparation, early shed
Choose loose and fertile, slightly acidic or neutral soil near the water source, apply 5,000 to 7500kg per 667m2 of decomposed manure, deep-dip 20cm, make a 1m or 1.5m wide flat rake, and bury the ground in the buckle shed 25 days before planting.
Fourth, reasonable dense planting
In the spring, the ground temperature is stable at 5°C, and the temperature can be set at 9°C or above. The plastic film canopy can be covered and cultivated on sunny days. Protect the soil when transplanting seedlings. Planing after watering pendulum, water infiltration after the cover soil. Can also be first ditching, then ditching seedlings, after the pouring of water, colonization of 5000-6000 per 667m2.
V. Strengthening field management
1. Temperature Management After planting, attention should be paid to cold insulation; around the improvement of temperature conditions to strengthen management, from 4 pm to 9:00, four weeks to cover the grass scorpions, generally 7 to 10 days during the period of seedlings does not release the wind, increase the temperature of the shed, during the day 25 °C ~ 27 °C, 11 °C ~ 15 °C at night; after the seedlings are cooled, the temperature of the seedlings is about 7 to 10 days, 15 to 20 °C during the day, and 12 to 14 °C at night. When the temperature in the shed grows above 20°C in the early stage of growth, the wind is released. When the minimum temperature in the shed is stable above 10°C, remove the small shed inside the shed.
2. About 15 days after water and fertilizer management, the first topdressing was performed, and 15 kg of ammonium sulfate was applied per 667m2 and watered. After the appropriate control of water seedlings, when the ball began to cohere with the end of seedlings, and the first time dressing, every 667m2 DAP 30kg. Afterwards, water was poured every 7 days and watering was stopped a few days before harvest to facilitate transportation.
There are three main types of Rice.
In
GB/T 1354-2009 "Rice National Standards", there are only three types of
rice: glutinous rice, glutinous rice and glutinous rice.
Pick rice three steps
Look
Packed
rice first look at whether the packaging is marked with QS mark,
product name, net content, production date and shelf life, quality
grade, product standard number and other information.
Look at the color and size of the rice grains in bulk to see if there are broken rice or yellow grains.
smell
Premium rice has a natural valley scent and no smell.
taste
New rice has a higher protein content and is harder than Chenmi.
Royal Basmati Rice,Nutritious Rice,Medium Grain Rice,Short Grain Rice
Ningxia Saiwaixiang Food Co., Ltd. , https://www.nxswxfood.com