At present, the millet varieties cultivated in Jianping County are conventional varieties, and many plots are planted on hills and hillsides. Due to the small size of the plot, poor operating conditions, and scattered planting, the scale cannot be formed, resulting in low yield and poor efficiency. Therefore, Jianping County introduced and promoted the “Zhangzao†series of hybrid varieties that are resistant to lodging, disease resistance, high yield and high quality, and realized the transformation of millet from hillside to large area.
1 Preparation before sowing
1.1 Seed selection
According to the climatic conditions, geographical conditions, soil conditions and farming methods of Jianping County, suitable hybrid rice varieties were selected. After a large number of trials and promotion, select the high-quality varieties suitable for Jianping County: Zhangshanggugou and other townships to promote Zhangzagu No. 5; southeast Lingxia Xiaodeyingzi, Heishanke and other townships promote Zhangzagu No. 10.
1.2 Site selection
Try to choose a land with high dryness, good soil permeability, easy cultivation and soft and fertile sand or sandy soil. Avoid the drainage is not good to squat; planting "Zhang Za Gu" to rotate down, avoid heavy sputum.
1.3 Fine land preparation
According to the situation, watering can be done in advance to rebuild the land, and the soil type should be distinguished when the land is prepared. To achieve a virtual reality, no large residual debris, debris, clods. "There are footprints but not the uppers", that is, the depth of the footprint is 2 to 3 cm.
1.4 Applying the base fertilizer
To lay a good foundation for fine sowing, you must first apply the base fertilizer. The base fertilizer is mainly farmyard manure, and 4000-5000 kg per mu is applied. In order to improve the available nutrient content, some nitrogen, phosphorus and potassium fertilizers can be added, and the potassium chloride is 8-10 kg per mu (the alkaline soil is changed to potassium sulfate per mu). 10 kg), diammonium phosphate 10 to 15 kg per mu, or only 15 to 20 kg per mu of compound fertilizer.
1.5 Seed treatment
Zhangzao is mostly coated seeds, which should be planted before sowing to improve seed vigor. Adjust the amount of seeding according to the bud rate to ensure emergence.
1.6 Control pests
The above-ground and underground pests will be treated with soil in advance to reduce the occurrence of pests and cereals in the later stages, and they can be trapped with trichlorfon and phoxim.
2 sowing
2.1 Sowing date selection
Jianping County is suitable for the sowing period from the end of April to the beginning of May. It is necessary to make the seedling stage in the dry season of early summer, which is conducive to "small seedlings", promote roots under the tie, grow robust, and prevent the lodging in the late stage; the heading period should be adjusted to the peak of the rainy season, avoiding the "ka neck drought", just "drag Xiugui Sui"; during the filling period, it is in the autumn with large temperature difference between day and night, avoiding the rainy season, which is conducive to the filling of millet, reducing the valley and increasing the fullness of the grain.
2.2 Seeding rate and sowing depth
The seeding amount is determined according to the number of seedlings required, the germination rate, and the soil moisture. In order to ensure the emergence of seedlings, 350 to 500 grams per acre. The sowing depth should be based on the principle that the sensation should be shallow and the sensation should be deep. Generally, it should be 3 to 4 cm.
2.3 Seeding method
According to the soil conditions, we choose to broadcast, plow, and broadcast. In order to increase the emergence rate of hillsides or hilly plots, you can choose to plow or small millet seeder for sowing; leveling the land can be carried out by mechanical drilling.
2.4 Seeding standards
It is required to spread the seeds evenly, without leaking, ridges, and the depth is the same. After the sowing, it is necessary to suppress it in time. The spring drought is serious, and the soil moisture is worse in places where the soil moisture is worse, so as to increase the seedling rate.
3 Field management
3.1 Checking the emergence
The ground temperature is 10 °C or more, and the seedlings are checked after half a month of sowing. The ground temperature is 15 °C and the seedlings are checked 7 days after sowing. If the rain occurs before the seedlings, the situation of "raining and slamming" appears, and in the sunny afternoon, the method of "reducing the armor" is adopted. Seedlings, conditional spray water can be sprayed or water can be drenched with water.
3.2 Seedling density
The planting density is determined by soil fertility. "Zhangzao" needs to be planted in a rare way, so that the maximum number of seedlings per acre is 15,000 (holes), and the thin land can be left at around 8,000 plants (acupoints).
3.3 Prevention of pests and diseases
In the emergence period, the squamata and the genus A. Prevention and control of pests such as borers before jointing, and timely observation and early treatment of insects. Remove the diseased plants in time and take them deep.
3.4 Topdressing
When the height of the seedling is about 33 cm, when the jointing is started, that is, when the root of the seedling can be touched by hand, a small bump can be used, and 10 kg of urea per acre, potassium chloride or potassium sulfate is 10 kg per mu, and nitrogen and potassium fertilizer can also be selected. 15 to 20 kg of mu for topdressing.
4 Herbicides use precautions
Zhangzao special herbicides have realized the labor and labor saving of millet. Compared with the traditional planting of millet, it significantly reduces the amount of labor for weeding and weed removal. However, the following matters should be noted when using the special herbicides for Zhangye Valley after the seedlings.
4.1 Strict use period
"Zhangzao" special herbicide is a post-emergence herbicide that kills annual grass weeds. It should be applied before the 3~5 leaf stage of the seedlings until the jointing. The weeds are obviously used; There is a herbicidal effect, but it will affect the yield of millet. The use of the heading period will cause the millet to fail to achieve the image.
4.2 How to use
100 ml of special herbicide for “Zhangzao†per acre, sprayed with water for about 45 kg, evenly sprayed; if there are more broadleaf grasses, 2,4-butyl ester (57%) 30 ml (or 2 potassium) can be added. 4 sodium chloride 56% soluble powder 100 grams) sprayed together (2,4-butyl ester used in excess will not take root). The half-film mullet dosage is reduced by half, and the full-film coating can be used or used as appropriate. Spraying should choose a windless day with air humidity above 65%. If it is used before 9:00 am or after 5 pm without dew, it is more beneficial to improve the efficacy; when spraying, add a protective cover to prevent the drug from drifting to other grasses. And broadleaf crops. However, it should be noted that the "Zhangzao" special herbicide can only be used in the "Zhangzao" area, and other millet fields must not be used, otherwise there will be a large area of ​​dead seedlings.
The above is all about Zhangzao's high-yield management technology. How much do you know about Zhangzao, if you are interested, you can continue to pay attention to the technology of Huinong.
Baby Hair Clippers,Hair Trimmer,Hair Cutting
NINGBO YOUHE MOTHER&BABY PRODUCTS CO.,LTD , https://www.oembreastpump.com