Agricultural Products Lists
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How to alleviate the "Cancer" of insect-resistant Cotton
Fusarium wilt of cotton is habitually called cancer by farmers. In fields where the disease has occurred, planting cotton later is often prone to cancer, or even more serious year after year, because once this kind of bacteria lurks in the soil, it is difficult to eradicate, and when it comes to suitable climatic conditions, it is easy to relapse. ...
2018-09-12 -
How to control cotton blight
Cotton Rhizoctonia solani, also known as root rot, black root disease, the pathogen is Rhizoctonia solani. Infection of pathogen before seed germination can cause rotten seed, and infection after germination to pre-unearthed can cause rotten bud. After the cotton seedlings were unearthed, the yellow-brown disease spot appeared at the base near the soil surface at the initial stage, and the disease spot gradually expanded and surrounded the whole base. Senior farmers.
2018-09-12 -
Fertilization technology of sunflower
The environment requires that sunflowers have strong low temperature tolerance in both seedling stage and mature stage. The seeds began to swell and germinate at 2 ℃-4 ℃, germinated at 4 ℃, could emerge at 5 ℃, and could meet the needs of normal emergence at 8 ℃-10 ℃. The seedlings can withstand a low temperature of several hours to 4 ℃, and can still recover after low temperature.
2018-09-12 -
Damage and control of spot borer of sunflower
Harmful characteristics: l-2 instar larvae eat tubular flowers, and after the 3rd instar, they arrange cavernous seeds along the sunflower seeds, eat some or all of the kernels, form empty shells or flower-eating plates, eat the disk into many tunnels, and spin silk on the flower plates to form a net and adhere to insect dung and debris, shaped like silk felt. The murdered disk is rotten and moldy.
2018-09-12 -
How to reduce the empty shell of sunflower?
1. Symptom recognition 1. Sunflower rust is an important disease of sunflower, with a yield reduction of 40% in pandemic years. Leaves, petioles, stems, sunflower plates and other parts of the disease can form a rust-like spore pile. The leaf is infected, the brown blister appears on the back of the leaf is the germ summer spore pile, the surface breaks and spreads brown.
2018-09-12 -
Cultivation techniques of dwarf sunflower
Dwarf sunflower is an annual herbaceous flower of the genus Compositae. Its plant is short, the branch leaf is dense, the flower is huge, the variety is various, the flower color is rich, has the deep red, brown, copper, golden yellow, lemon yellow, milky white and so on color, has the high ornamental value, may plant in the pot or the ground, is arranges the flower bed, the flower border and the festival flower.
2018-09-12 -
How to control Verticillium wilt of cotton
The damage of cotton Verticillium wilt was mainly manifested in the middle and later stages of cotton growth. In July and August, the incidence of Verticillium wilt was light in the years of high temperature, drought and lack of rain in summer. Verticillium wilt is generally not dwarfed, but also can bear a small number of cotton bolls, flower and boll period after a long drought and heavy rain, the leaves suddenly wilted. It looks like a water stain, and then it falls off.
2018-09-12 -
Causes and control methods of premature senescence of wheat
Causes and control methods of premature senescence of wheat
2018-09-12 -
Causes and control methods of cotton stiff seedlings
Causes and control methods of cotton stiff seedlings
2018-09-12 -
How to select sunflower seeds in field
I. Selection of plot, sowing date, sowing quantity and density: sunflower planting should not be continuous cropping or compartment planting. The same plot should be spaced at least 3 years apart. Continuous cropping will lead to diseases and insect pests and unbalanced soil nutrition, resulting in serious yield reduction. Soil salt content should not exceed 4500 plants/667 square meters, follow the "fertile land should be thin,...
2018-09-12 -
How to fertilize sunflower reasonably
Symptoms can occur in both seedling stage and adult stage. Causes the plant to dwarf, cannot form a plate or die. The disease began to appear when 2-3 true leaves were infected at the seedling stage, and chlorotic patches began to appear along the leaf veins after the leaves were damaged, and the white velvet mold layer could be seen on the back of the leaves, that is, the cyst peduncle and sporangium of the pathogen. The diseased plant grows slowly or does not decay for long. ...
2018-09-12 -
Skillful cultivation of sunflower
Prepare the land and sow seeds. Before planting, apply 30-35 piculs of soil fertilizer or 25 piculs of cow pen manure per mu, add 3 piculs of plant ash, pear rake to make the border, the width of the bed is 2-2.5 meters. Sunflower spring sowing from late March to late April; the earlier the sowing, the higher the yield and quality. Direct seeding or seedling transplanting can be done with a planting density of 65 × 60 cm and one seedling per hole. Make it up.
2018-09-12 -
Control of sunflower sclerotia disease
To control sunflower sclerotiorum, we should pay attention to rotation and elimination of dead bodies. Encourage sunflower rotation with millet, millet, corn and other gramineous crops, avoid continuous cropping with legumes and solanaceae. The rotation period is at least 3 - 5 years. During autumn harvest, try to remove straw, dig out stubble and deeply turn more than 10 cm. The second is...
2018-09-12 -
Occurrence and control of Sclerotinia sclerotiorum in sunflower
With the accelerated pace of planting structure adjustment, the market demand for drug-eating sunflower seeds is increasing day by day. Sunflower is a kind of cash crop that is easy to manage, labor-saving and labor-saving. Due to extensive field management and continuous cropping for many years, many diseases are prevalent and aggravated year by year, directly resulting in sunflower yield.
2018-09-12 -
The causes of Cotton growing excessively and its Control methods
The causes of Cotton growing excessively and its Control methods
2018-09-12 -
Key points of Field Management of Spring Maize in the later stage
1. Choose a good variety. Selecting a good variety is the key to a bumper corn harvest, and we must select the varieties introduced by the formal agrotechnical departments, or those approved by the provincial seed approval committee. What we introduced in 2006 is the "Changxin No.1" introduced by Danling County Changxin seed Co., Ltd. Mu.
2018-09-12 -
Key points of sowing and Seedling Protection techniques of Spring Maize
1. Fattening nursery bed: fertilizing bed is used to raise seedlings, rape seedbed is selected, and dry nursery pond is used as spring corn nursery bed. If the seedling bed is kept in proportion, the ratio of the seedling bed to the field area is 1: 20 when the bowl diameter is 5 cm, and the ratio of the seedling bed to the field area is 1: 10: 15 when the bowl diameter is more than 7 cm. Early in the morning.
2018-09-12 -
We should pay attention to the selection of spring sowing corn.
How to select good maize varieties is a key issue related to whether the yield can be increased in autumn. When selecting improved varieties of corn, farmers should follow the following principles: first, seed selection according to the conditions of heat resources. The local heat resources are related to the growing period of maize varieties. The corn variety with long growing period has good yield performance.
2018-09-12 -
Control techniques of Maize Leaf spot and Leaf spot
Corn leaf spot and small leaf spot are mainly harmful to leaves, and sometimes infect leaf sheaths and bracts. Leaf spot can not only damage the above-mentioned parts, but also damage ears. In many areas, these two diseases are collectively referred to as "corn spot". 1. Symptom recognition: the typical symptom of corn leaf spot is the rapid expansion of small spots and the growth of large edges.
2018-09-12 -
Occurrence and Control of Curvularia Leaf spot in Maize
Corn Curvularia leaf spot, also known as yellow spot disease, farmers called yellow leaf disease, is another important disease of maize in our province in recent years after big spot, small spot and rust. After the occurrence of Curvularia leaf spot, the leaves were covered with disease spots, which withered and died, which seriously affected the growth of maize and reduced the yield. First, the occurrence of symptoms:
2018-09-12