Agricultural Products Lists
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Rotten Rice seedlings and its Preventive Countermeasures
Rotten rice seedlings are the general name of rotten seeds, rotten buds and dead seedlings that occur in the seedling stage. Rotten rice seedlings can be divided into two types: physiology and infectivity. Physiological rotten seedlings are mainly caused by low temperature and poor management measures, infectious rotten seedlings are caused by pathogen infection, and the main diseases are rice cotton rot, rice rot and rice.
2018-09-13 -
Breeding techniques for blast resistance of rice
The main diseases transmitted by rice seeds are evil seedling disease, rice blast, rice false smut, bacterial leaf blight, stripe blight transmitted by gray planthopper at seedling stage and so on. At present, it is the time for rice seed soaking in Qilin District. When soaking rice seeds, demonstration households must insist on soaking rice seeds with chemicals. The main purpose is to kill the germs carried by rice seeds.
2018-09-13 -
Wheat thicket dwarf disease
Wheat rosette dwarf disease is a viral disease transmitted by the virus vector gray planthopper. There are two peaks in the transmission and infection of gray planthopper on wheat: the first peak is after the emergence of wheat seedlings, and the second peak is after the wheat turns green.
2018-09-13 -
Opinions on wheat sowing and prevention and control of diseases, insect pests and weeds at seedling stage
Seed dressing of wheat can prevent soil-borne, seed-borne diseases and some insect pests, such as total erosion disease, root rot, sheath blight, scattered black spike and so on. Attention should be paid to: 1. The type of drug use should be determined according to the occurrence of diseases and insect pests. If the wheat seedling pest occurrence is very light, the disease occurrence is serious, only uses the fungicide to mix the seed, does not need to kill.
2018-09-13 -
Harm and control measures of wheat powdery mildew
The disease can damage the aboveground organs of wheat plants, but mainly leaves and leaf sheaths, and glumes and awn can also be damaged when the disease is serious. At the beginning of the disease, the white mildew spot of 1~2mm appeared on the leaf surface, and then gradually expanded into nearly round to oval white mildew spot, and there was a layer of white powder on the surface of the mildew spot, which scattered immediately in case of external force or vibration. This is...
2018-09-13 -
Control of Underground pests of Wheat in Spring
The main underground pests are grub, mole cricket and golden needle worm, among which golden needle worm is the most harmful to wheat. The peak damage period of underground pests after the Spring Festival is from mid-March to early April. They bite off the roots of wheat, resulting in serious lack of seedlings and broken ridges, which have a great impact on wheat yield. In recent years, more and more underground pests have been treated.
2018-09-13 -
How to control rice Phytophthora?
Rice Phytophthora: the diseased field should be drained and sunburned in time, which can effectively restrain the spread of the disease. The key point of chemical control is to protect the seedlings of early rice at 3-leaf stage. Generally speaking, the medicine should be applied before or after anti-cold irrigation. The medicaments are: 50% carbendazim 1000 times solution; 50% topiramine or 50% benzoate 500 times solution; 40% Phytophthora net 500 times solution. ...
2018-09-13 -
How to control rice bacterial brown stripe disease?
Control of rice bacterial brown streak: 20% Yekuning wettable powder 6000 times, 25% Dikushuang 1500 to 2000 times, 20% Shikujing wettable powder 300 to 2000 times (not suitable for use after heading); 1000 to 1500 times of benzoylamine can be used in seedling stage; 2: 1: 500 in this field.
2018-09-13 -
Operation and Research methods of phosphorus and potassium Fertilizer for High-yield Maize
The application effect of phosphorus and potassium fertilizer varies greatly due to the available content of soil. The application of phosphorus and potassium is beneficial to the early development of strong seedlings, strong plants and large ears, increase the ratio of grains to leaves, increase the number of grains and grain weight, which is an important condition to improve population quality. However, after the application of phosphorus and potassium fertilizer, most of it was absorbed and fixed by the soil, and the absorption and utilization rate was low in the soil.
2018-09-13 -
The importance of getting rid of weeds in summer corn field
The growth of weeds in corn field is fast and concentrated, and when the soil moisture is good, about 10 days after sowing, the emergence rate of weeds reaches a peak, and the emergence rate reaches about 90% in 15 days. In case of rainfall or watering, there is a small peak of emergence in 4 days. The seedling stage is damaged by weeds, and the plants show short, thin culms and yellow leaves, which will also aggravate the occurrence and harm of diseases and insect pests in the corn field.
2018-09-13 -
Current management measures of spring sowing corn
1. Take measures according to local conditions and select improved varieties. Popularize Yedan 13, Xiyu 3, Huayu 4, Zhongdan 32, Chenghai 1 and Expedition 808 in plain and hilly areas. Yedan 22, Yedan 51 and 9362 with short stem and short growth period are selected for interplanting in cotton fields. Zhongnuo 1 can be planted in suburban areas.
2018-09-13 -
Management and Technology of Spring Maize during Summer
At present, spring maize in Qianxi area has entered the jointing stage, which coincides with the peak period of water and fertilizer demand, and it is also the key period of yield formation, so the summer management of maize should be strengthened. First, timely topdressing of corn should be based on nitrogen fertilizer, and it is best to apply it in two stages, that is, 20 kg urea per mu in the big trumpet period.
2018-09-13 -
There is a wonderful way to prevent wheat freezing injury
What is wheat rust? Wheat rust is also called jaundice. There are three kinds of rust: stripe rust, leaf rust and stem rust. A disease that occurs most widely and causes most damage to wheat. After wheat rust infection, chlorotic spots appear on the surface of wheat leaves or straw at the initial stage, and yellow or reddish brown powder blisters grow later, that is, the pathogen summer spore pile.
2018-09-13 -
Wheat stripe rust can be treated in different areas.
Wheat stripe rust is a serious biological disaster that affects the safe production of wheat in China for a long time. In general epidemic years, the yield of wheat is reduced by 10% by 20%. In extremely epidemic years, the yield can be reduced by more than 60%, and even there is almost no harvest of wheat. According to the comprehensive analysis of the number of bacterial sources, weather conditions and variety distribution, the year 2011 is predicted.
2018-09-13 -
How is wheat downy mildew transmitted?
How is wheat downy mildew transmitted? Wheat downy mildew is a fungal disease. The pathogen oversummered in the host diseased tissue with oospores. The oospores germinate and produce sporangia when the conditions are suitable. Oospores and sporangia spread by running water, germinate and produce zoospores, which invade from coleoptile to hyphae, and hyphae penetrate into host larvae.
2018-09-13 -
Efficient cultivation techniques of fresh Corn in greenhouse
In the later stage of spring production, the vegetable plant in the warm winter greenhouse aged, the yield and quality decreased, the market price was low, and the planting benefit decreased. At this time, transplanting fresh corn in the winter greenhouse can make rational use of the greenhouse resources and obtain higher economic benefits. First, the selection of excellent varieties: according to the local conditions to select high-quality fresh.
2018-09-13 -
Technical points of controlling Spodoptera litura at Seedling stage of Summer Maize
Spodoptera litura is a new pest in summer corn producing areas in China. Returning wheat straw to the field provides an excellent environment for Spodoptera litura to choose hidden and wet places to lay eggs and hatch. Once the peak period of larvae coincides with the maize seedling stage, and there is suitable precipitation, it is possible to cause serious harm. The two-point armyworm.
2018-09-13 -
How to ensure "one sowing whole Seedling" in sowing Summer Maize
If summer corn wants to realize "one sowing whole seedling", in addition to selecting excellent seeds, we should also pay attention to the following aspects: sowing should not be too deep: the most suitable sowing depth of summer corn is 3mi 5cm. If the sowing is too deep, the low temperature is easy to rett, even if it can barely emerge, the seeds will be buried too deep.
2018-09-13 -
Key points of cultivation techniques of Special Maize
Special corn includes forage corn, waxy corn, sweet corn and popcorn. The botanical and biological characteristics of special maize are different from those of ordinary corn, so it also has its special requirements in cultivation techniques. Forage corn is a variety of corn used for silage or silage. At present,.
2018-09-13 -
Key points of interplanting maize sowing technology
To improve the quality of sowing in order to ensure that corn seedlings complete, seedlings strong, general mu application of 5 kg of diammonium phosphate and 1 kg of zinc sulfate as seed fertilizer, before sowing the piles of wheat straw evenly dispersed, so as not to affect the seeding emergence, sowing attention to the operating speed of the seeder, in case of missed sowing or sowing seeds on wheat stubble, to try to do "row...
2018-09-13