Agricultural Products Lists
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How to fertilize soybeans?
How to fertilize soybeans? What are the characteristics of soybean fertilizer requirement? The law of fertilizer absorption of soybean. The growth and development of soybean can be divided into seedling stage, branching stage, flowering stage, podding stage, grain filling stage and mature stage. The whole growth period is from 90 to 130 days, and the law of fertilizer absorption is nitrogen absorption rate. The emergence and branching period accounted for 15% of the total nitrogen uptake during the whole growth period.
2018-09-10 -
How do you know what kind of fertilizer soybeans lack?
What method is used to treat soybean sclerotinia disease? Soybean Sclerotinia sclerotiorum mostly starts from the middle and lower branches of the main stem of the plant. The disease spot is waterlogged, irregular, light brown or nearly white, which can surround the stem and spread up and down.
2018-09-10 -
How to control Sclerotinia sclerotiorum?
How to control Sclerotinia sclerotiorum? The solution of soybean Sclerotinia sclerotiorum often occurs from July to maturity. the symptom of the disease is that the wet green spot appears at the base of the stem, which expands quickly, and then the woolly mycelium grows in the spot, and the epidermis breaks into hemp. Black mouse dung-like sclerotia is produced on the inside and surface of the stem.
2018-09-10 -
What is soybean gray spot disease and how to prevent it?
What is soybean gray spot disease and how to prevent it? Ask to instruct soybean gray spot disease: (1) harm and symptom soybean gray spot disease calls brown spot disease again, spot disease or frog eye disease. Soybean gray spot is a worldwide disease, and also an important disease in main soybean producing areas in China, especially in Northeast China. The pathogen is located in the eastern part of Heilongjiang Province.
2018-09-10 -
What if soybeans have a lot of lodging?
Are there any measures to increase the yield of soybeans? The more detailed the solution, the better. If you want to increase soybean production, you can use the following methods: 1. Interplanting: on the basis of the whole seedling, when two opposite leaves are unfolded, the yield is generally increased by 10-20%. two。 Pressing seedlings: when the first compound leaf of some soybean seedlings unfolds, it is clear.
2018-09-10 -
What is soybean yellowing and how to prevent it?
What is soybean yellowing and how to prevent it? There are several main reasons for soybean yellowing: first, soybean cyst nematode disease. The disease is mainly distributed in soybean continuous cropping plots for many years and areas with low groundwater level. After the seedling stage illness, the leaf is yellowish brown, the growth is slow, serious when the whole plant withered; after the adult plant stage illness,.
2018-09-10 -
What is soybean cyst nematode?
What is soybean cyst nematode? How to control soybean cyst nematode disease: (1) harm and symptom soybean cyst nematode disease is also called Verticillium wilt, commonly known as "Huolong Yangzi". It is a worldwide soybean disease, which occurs in a large area in the main soybean producing countries: the United States, Brazil, China and Japan. Our country mainly occurs in.
2018-09-10 -
How to control diseases and insect pests when planting cotton?
How to control diseases and insect pests when planting cotton? When should I start? Strict disinfection of seeds strongly advocates the purchase and selection of foam acid depilation, selection, use of high-efficiency fungicides and insecticide coating, good quality coated seeds; all cotton fields that do not use coated seeds, the cotton seeds used must also use efficient sterilization.
2018-09-10 -
What about the rotten cotton bolls?
What about the rotten cotton bolls? Is there any way to prevent and cure cotton in mid-late August, when cotton enters the boll opening period, the phenomenon of rotten bolls and peaches often occurs? in general, the rate of rotten bolls and peaches reaches 10%, 15%, and serious fields reach more than 30%, often resulting in reduced cotton production and quality. To this end, the prevention and control of cotton bolls and peaches have the following five measures:.
2018-09-10 -
How to prevent and cure soybean root rot?
How to prevent and cure soybean root rot? What is the best method to control soybean root rot by the following methods: 1. Select disease-resistant varieties. 2. Rotation with corn, millet, sweet potato and other non-host crops. 3. Increase the application of farm manure, potash fertilizer, phosphate fertilizer and so on when sowing. 4. Apply metalaxyl granules when sowing.
2018-09-10 -
Why do soybeans die in summer?
What if heart-eating insects are found in planted soybeans? For those who have not finished boring the ground for the last time before late July, we should pay close attention to boring the soil, reduce the number of heart-eating insects, reduce spawning and reduce the occurrence of larvae. According to the forecast of the local plant protection department, or according to their own observation in soybean.
2018-09-10 -
What is soybean continuous cropping?
How to prevent and cure soybean leaf spot? What is the cause of the disease? 1. Distributed soybean leaf spot occurred in Sichuan, Henan, Shandong, Jiangsu and other places in China, and autumn soybean occurred more frequently. Second, the symptoms show that the disease spot on the leaf is light brown to grayish white, irregular, and the edge is dark brown. The disease spot is born in the later stage.
2018-09-10 -
How to top cotton?
How to control cotton aphids? Is there any effective way to use it? The control of cotton aphid should be based on the occurrence of local control, spot should be selected when the occurrence of treatment, do not spray all over the field, so as not to kill natural enemies. Chemical control should be carried out in time for the fields that reach the control target, and 35% Saidan EC is generally selected for 100-16 per mu.
2018-09-09 -
How can cotton yield increase and disease resistance?
How can cotton yield increase and disease resistance? What's the trick? Through the investigation in some cotton areas, it is found that the cotton farmers who apply nitrogen, phosphorus and potassium compound fertilizer only account for about 45%. Most farmers use ammonium bicarbonate, urea and calcium superphosphate, of which about 15% only use phosphate fertilizer as base fertilizer.
2018-09-09 -
* * how to control cotton stem wood sac moth?
What diseases are there in cotton boll period? How to prevent and cure it? How to control cotton boll disease? Occurrence, climate and variety of cotton boll disease. There is a close relationship between insect pests and cultivation techniques during the growth period, so the prevention and control of cotton boll diseases should be based on cultivation management combined with chemical protection. (.)
2018-09-09 -
Why is cotton rotten peach?
Why is cotton rotten peach? How to prevent and cure it? Every autumn harvest, rotten cotton peaches have become a "headache" for the majority of cotton farmers. What should I do? Based on years of experience, the author puts forward "five measures". Cotton farmers might as well give it a try. First, timely control of cotton and rotten peaches, mostly caused by worms on cotton and peaches.
2018-09-09 -
What is cotton Fusarium wilt?
What is cotton Fusarium wilt? What are the forms of expression? There are mainly the following kinds of cotton Fusarium wilt: ⑴ yellow net pattern. The veins of leaves first fade to yellow, and the mesophyll is still green, forming a yellow network. ⑵ yellowing type. Leaf veins remain green, mesophyll turns yellow, or leaf veins and mesophyll turn yellow. Chlorotic leaves from.
2018-09-09 -
How to control blight when raising rice seedlings
How to control blight when raising rice seedlings? Although the rice dry nursery seedling bed is not easy to rot rice seedlings, it is most likely to die of blight disease, which is 20%, 30% and more than 50%, respectively. The following measures can be taken to effectively control the disease. 1. Adjust the acid of the soil: neutral and alkaline soil, sowing.
2018-09-09 -
Introduction: pollution-free control methods of rice diseases and insect pests
Methods of non-pollution prevention and control of rice diseases and insect pests: (1) Rice field tillage: during the peak period of pupation of rice borer in winter (March 20 in southern Jiangxi, April 1 in central Jiangxi, and April 10 in northern Jiangxi), ploughing winter fallow fields and green manure fields, soaking in deep water, so that the borer can not normally Eclosion, to kill pupae and reduce the occurrence base.
2018-09-09 -
Is there any good way to control diseases and insect pests in rice?
Is there any good way to control diseases and insect pests in rice? The success or failure of rice pest control plays a vital role in rice yield. For the prevention and control of rice diseases and insect pests, the first is to select varieties resistant to diseases and insect pests; the second is to fertilize reasonably and increase the application of organic fertilizer, phosphorus and potassium fertilizer; the third is to use water scientifically to keep the field dry and rainy.
2018-09-09