blighted grain Learn more about blighted grain
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Causes and control methods of blighted soybean grains
Causes and control methods of blighted soybean grains
2019-03-07 -
Soybean cultivation: why do soybeans produce blighted grains?
Why do soybeans produce blighted grains? How to prevent blighted soybeans? Please introduce that the blighted grain of soybean is mainly caused by the decline of leaf function, resulting in the lack of photosynthate, or the lack of water, which hinders the transport of nutrients. In the later growth stage of soybean, the decline of various physiological functions is inevitable, but if nutrition and water.
2018-07-17 -
The latest causes of blighted soybean grains and its control methods
After maturity, soybeans often have the phenomenon of incomplete grain development, or even only an empty shell, such a bean grain is called blighted grain or shrunken grain, and some blighted grains will be raised to yield. So what is the reason for the blighted grain of soybean? How to prevent and cure it? Come together.
2020-11-10 The latest soybean blighted grain cause and control method in -
How to control rice sheath blight by reducing 1000-grain weight of rice
How to control rice sheath blight by reducing 1000-grain weight of rice
2018-07-14 -
Autumn crops will be harvested in 2015, pay attention to management and increase yield
Editor's note: due to the abnormal climate this year, drought and little rain in the early stage, and continuous rain in the later period, the seedling conditions of autumn grain crops, especially dry grain crops, are quite different, which brings great difficulties to crop management and creates conditions for the occurrence of diseases and insect pests, which is disadvantageous to crop growth. Needle
2016-01-10 2015 autumn grain crops will harvest attach importance to management increase yield -
Guard against the occurrence of rice sheath blight under high temperature and humidity
Sheath blight, also known as sheath blight, rice sheath blight has a great impact on its growth and development, not only weakening the absorption capacity of roots, but also affecting leaf photosynthesis, resulting in an increase in empty chaff grains, a decrease in 1000-grain weight and a decrease in yield. Therefore, attention should be paid to the prevention and control of sheath blight in production. The main symptoms, occurrence characteristics and control methods of this disease are introduced below for reference. The main symptoms of rice leaf sheath infection produce dark green water-immersed spots with blurred edges near the surface of the water, then expand in oval or moire shape, and grayish green in the middle.
2019-01-16 -
What are the common varieties of long-grain rice?
If we only talk about long-grain rice, we can't immediately think of what kind of rice it is. It is also called indica rice, and the crushed rice is called indica rice, which is widely grown in the south. So what are the common varieties of long-grain rice planted by farmers now? Think about it.
2020-11-27 Long grain rice common varieties which if only speaking of -
Jiangsu seed Industry will promote improved Rice varieties tomorrow
Nanjing 44, formerly known as "Ning 4009", is an early-maturing late japonica rice variety. It was selected by the Food crops Research Institute of Jiangsu Academy of Agricultural Sciences and bred in 2004. It is suitable for planting under the conditions of middle and high fertility along the Yangtze River and southern Jiangsu Province. Participated in the regional trial of Jiangsu Province from 2005 to 2006, the average yield per mu was 588.1 kg in two years, and the average yield per mu in the production test in 2006 was 621.9 kg, which was 7.1% higher than that of the control. The effective panicle per mu is about 190000, the number of filled grains per panicle is about 130, and the seed setting rate
2019-01-16 -
Huamai 2
Long awn, white hull, red grain, spindle panicle, semi-hard-soft grain. Seedling erect, leaves broad and long, pale green leaves. Tillering ability is stronger, panicle and grain number per panicle are more, 1000-grain weight is slightly lower. The plant type is loose, the plant height is about 84 cm, and the fertilizer resistance is strong. The growth period is about 211 days, one day longer than the control. The effective panicle per mu is about 320,000, with about 38 grains per panicle and about 39 grams of 1000-grain weight. Inoculation identification results: moderate resistance to scab, susceptible to sheath blight, highly susceptible to shuttle stripe mosaic disease, highly resistant to preharvest germination. The field performance is medium susceptible to sheath blight and powdery mildew. Quality analysis of two
2019-01-15 -
Four effective measures to control rice red blight
After a good early growth, rice enters the reproductive growth stage in the middle and later stage. strengthening the field management at this stage is closely related to the yield and quality of rice. So, how to do well the field management in the middle and later stage of rice growth? The main results are as follows: 1. timely roasting should be carried out in the period when rice is not sensitive to water, that is, from late tillering to early panicle differentiation. The following principles should be followed in operation, that is, the seedlings should be roasted early, and those with deep muddy feet should be baked heavier, and vice versa.
2019-01-16 -
Key points of Management in Grain filling stage of planting Rice
The grain filling stage is the key period to determine the yield of rice. Field management should aim to maintain roots and protect leaves, prevent premature senescence, improve photosynthetic efficiency, promote grain filling, and increase seed setting rate and grain weight. First, apply grain fertilizer to look at the seedlings, the fields and the sky. The leaves are yellow and swords.
2020-11-08 Planting rice grain filling stage management key points -
Huamai 3
Long awn, white shell, white grain, spindle spike, grain semi-hard. The seedlings are semi-erect, the leaves are dark green, the cold resistance and spring cold resistance are general, and the tillering ability is general. The plant type is compact, the ear layer is neat, and the mature phase is better. The plant height is about 82 cm and the lodging resistance is good. The whole growth period is about 223 days, which is equal to that of the control. The effective panicle is about 360000 per mu, about 30 grains per panicle, and the 1000-grain weight is about 46 grams. Inoculation identification results: susceptible to scab, sheath blight, highly susceptible to spindle stripe mosaic, moderately resistant to panicle sprouting. Susceptible to powdery mildew, sheath blight and scab in the field
2019-01-16 -
Jinyou 448 (rice)
Characteristics: This variety belongs to Indica three-line hybrid rice. The average growth period of double cropping late rice planted in the middle and lower reaches of Yangtze River is 111.9 days, which is 1.8 days earlier than that of control Shanyou 64. Plant height 88.4 cm, plant type moderate, plant shorter, straight sword leaves, panicle grain weight coordination, easier to drop seeds, later easier to lodge. The effective panicle number per mu is 204,000, panicle length is 23.2 cm, total grains per panicle are 110.4, seed setting rate is 83.4%, 1000-grain weight is 28 g. Resistance: rice blast 7, bacterial blight 7
2019-01-16 -
Cultivation techniques of Liangyoupeijiu Rice
Liangyou Peijiu is a two-line high-yielding middle hybrid rice variety selected by Jiangsu Academy of Agricultural Sciences and approved by Hubei crop Variety approval Committee in 2001. The plant type of this variety is compact, the stem is hard, the leaf color is dark green, and the sword leaf is tall and straight. The spike spinning type has large spike and many grains, and the grain is dense. The grain is medium-long, the seed setting rate is high, and the 1000-grain weight is low. The quality of rice is better. There are obvious two-stage grouting phenomenon, and the color change is general in the later stage. The whole growth period is about 139 days, which is 3-4 days longer than that of Shanyou 63. Moderately susceptible to bacterial blight and highly susceptible to panicle neck blast. Moderate sheath blight
2019-01-16 -
Control of top blight of growing soybean
Wudalianchi City is one of the main soybean producing areas in Heilongjiang Province and a major commodity grain county in the country. The sown area of soybean accounts for more than 50% of the total sown area every year. Soybean top blight only occurred sporadically in the past, but there was no large-scale occurrence in 1998.
2020-11-08 Species soybeans top blight disease control Wudalianchi City is -
Brief introduction of New Rice combination in Fengle seed Industry
The rice research institute of Yuxiangyou No. 2 line Fengle seed Industry used the new two-line hybrid rice combination of high quality, high yield, disease resistance and aroma derived from Guangzhan 63s wide compatibility restorer line Fengxianghui 1 to participate in the pre-test of medium rice in Hubei Province in 2003 and the regional test of medium rice in Hubei Province in 2004. The whole growth period of this variety as medium rice is about 135 days, which is equivalent to that of Shanyou 63. The plant height is about 125 cm, the total number of grains per panicle is 180-200, the seed setting rate is about 85%, the 1000-grain weight is 28g, and the yield per mu is 600 under normal conditions.
2019-01-16 -
Common Rice Diseases and their Control
In the whole growth period of rice, the common diseases are rice blast, bacterial leaf spot, bacterial blight, sheath blight, rice false smut and so on. The main results are as follows: (1) Rice blast can occur from seedling to heading. According to the symptoms of the disease in different growth stages and different parts, rice blast can be divided into seedling rice blast, leaf rice blast, node rice blast, panicle rice blast and grain rice blast. 1. The main symptoms (1) seedling rice blast: the diseased seedlings turn gray-black at the base of the stem near the soil surface, and the upper part is reddish brown, which makes the whole seedling curl and die. (2) Leaf rice blast:
2019-01-16 -
Rice disease
1. Rice blast (1) damage characteristics: Rice blast, also known as rice fever, commonly known as fire blast, hanging head blast, neck-choking blast and so on, is one of the most popular and harmful fungal diseases in the world, which mainly harms the aboveground part of the host plant. Due to the different damage period and position, it can be divided into seedling blast, leaf blast, ear neck blast, branch blast, grain blast and so on. The host range is many kinds of Gramineae plants, such as rice, wheat, horse tang and so on. Magnaporthe grisea overwintered mainly on diseased rice straw and was infected in rice field in the second year. The spread of bacteria mainly depends on the wind.
2019-01-16 -
Integrated Control of Zizania latifolia Rhizoctonia
Zizania latifolia is a unique aquatic vegetable in China. In the world, only China and Vietnam cultivate Zizania latifolia as a vegetable. The ancients called it wild rice. Before the Tang Dynasty, Zizania latifolia was cultivated as a food crop. Its seeds were called wild rice or carved Hu, which were six grains (millet, millet and millet).
2020-11-08 Zizania latifolia blight disease integrated control is China special -
In 2006, the National quality Review Committee approved the rice varieties.
Approval No.: national examination and approval Rice 2006013 Variety name: Luliangyou 996 breeding Unit: Hunan Agricultural University, South Asia Chinese Academy of seed Industry Academy of Sciences Variety Source: Lu 18s × 996 Provincial examination and approval: characteristics approved by Hunan crop Variety approval Committee in 2005: this variety belongs to indica two-line hybrid rice. The average growth period of early rice in the middle and lower reaches of the Yangtze River was 109.7 days, which was 1.7 days earlier than that of Jinyou 402. Moderate plant type, stem
2019-01-16