Agricultural Products Lists
-
High-yielding cultivation techniques of Rice "Indica-glutinous intercropping"
Rice-ldquo; indica glutinous intercropping & rdquo;, refers to a configuration of hybrid indica rice and glutinous rice, that is, the selection of medium-culm hybrid indica rice and high-culm glutinous rice, and the use of wide rows of indica hybrid rice and single-row glutinous rice according to a certain band width, row ratio and width to form the complex of indica hybrid rice and glutinous rice in the same field. According to the principle of three-dimensional agriculture, intercropping cultivation is carried out by making use of the characteristics of different rice varieties, different ripening periods and different plant height, so as to make multi-level utilization of temperature and light resources.
2019-01-16 -
Water Management measures of "three rows and three Irrigation" for Rice
One, three and one row: from the critical tillering stage to the tip stage of the second leaf (20 days before heading), the field should be drained to control the growth of ineffective tillers. The grass seedlings should grow vigorously, and the fields with dark green leaves, fertile fields and cold-soaked fields should be heavily exposed to promote the fading of their leaves; for the fields with poor growth of grain seedlings and thin fields, the fields with low groundwater level should be exposed to the sun for many times, and the best degree is not to sink the feet in the field. The second row: the second drainage was carried out from 5 to 7 days before heading to the heading stage, so as to improve the root activity and enhance the nutrient absorption capacity of rice roots.
2019-01-16 -
Rice "three Fertilizer" and its Application skills
Scientific fertilization is one of the important measures to achieve high quality and high yield of rice. However, rice fertilization is a highly technical work, which must be flexibly mastered in practice because of variety characteristics, soil fertility, climatic factors and cultivation conditions. As we all know: the demand for fertilizer of rice is shown in the nutrition period, the nutrition critical period and the nutrition maximum efficiency period. For example, the growth period of early rice is short, the amount of fertilizer required is relatively less, and fertilization should be early and concentrated. If the growth period of middle rice and late rice is longer, the amount of fertilizer required is large, and the absorption intensity is high, topdressing should be increased.
2019-01-16 -
"three Super" cultivation techniques of Rice
First, select suitable varieties according to local conditions, and select high-quality varieties with normal and safe maturity, medium tillering, large panicle, high grain weight, strong resistance to stress and disease, leaf jerk, convergence of plant type and outstanding high yield. Second, timely early sowing and sparse sowing to cultivate strong seedlings (1) seedling preparation 1. Nursery bed preparation ① nursery bed selection: choose non-pollution, flat and loose, fertile soil, good water retention, leeward sunny plot special seedling field. ② ground preparation and trellis: in order to achieve super early sowing, the bed and soil should be prepared and scaffolding should be built in the previous year.
2019-01-16 -
Control techniques of "two Diseases and three pests" in Rice
Rice two diseases and three insects refer to rice blast, sheath blight, rice stem borer, rice planthopper and rice red spot black foam cicada, which do great harm to rice and should be prevented and controlled. Rice blast is caused by long-term irrigation of deep water or excessive drought and partial application of nitrogen fertilizer. There are three susceptible stages in rice life, namely, seedling stage, heading stage and heading stage. Panicle neck blast has the greatest effect on rice yield, which should be prevented as early as possible at break stage and full heading stage. Rice blast is divided into seedling blast, leaf blast, node blast, panicle blast and grain blast. Rice blast
2019-01-16 -
Identification of common confounding symptoms in rice
1. Several kinds of Ralstonia solanacearum 1. Sclerotinia sclerotiorum. It is more common in the late stage of late rice, which often occurs in clumps in the field, and there are several plants in a hole. The tissue at the base of rice is soft rotten and has dark brown spots. Peeling off the basal leaf sheath and stem, we can see that there are many black sclerotia smaller than amaranth seeds. 2. Bacterial base rot and wilt. Sporadic occurrence in the field, generally 1 in 1 point, 3 plants fell ill, the base of the diseased plant showed rat gray rot, the root system was rare and decayed, peeled off the basal stem, full of smelly water, sterile sclerotia. 3. Physiologically withered. The stem of rice plant shrinks and the base of rice stem is pinched by hand.
2019-01-16 -
How to carry out Rice breeding
In the process of hybrid rice breeding, the sterility of rice male sterile lines is affected by photosensitive factors. Male sterile lines are generally sterile under long sunshine from April to September and fertile under short sunshine from September to April next year. Therefore, the yield of "two-line hybrid rice breeding" is more than 20% higher than that of "three-line hybrid rice breeding", and it overcomes the problems of singleness of sterile cytoplasmic source and great limitation of heterosis utilization. The genetic affinity between indica and japonica subspecies is affected by its affinity substance.
2019-01-16 -
How to Tillage Rice Field by Machine
Different tillage methods should be adopted according to stubble and soil characteristics, and base fertilizer should be applied according to soil fertility. 1. The stubble field is tilled, and the previous stubble straw is crushed. The straw must be crushed and scattered evenly when the previous crop is harvested. If the straw is not crushed during mechanical harvesting, one more straw crushing operation should be added or the straw should be removed from the field. 2. Drought. Under the condition of suitable soil moisture and moisture content, three methods of stubble cleaning can be adopted: normal rotation (reverse rotation), shallow tillage and harrowing.
2019-01-16 -
How to control Oxya chinensis
The scientific name Oxyachinensis (Thunberg) belongs to Orthoptera, Acrididae. It is distributed in the rice areas of the south and north of China. Damage to rice, Zizania caduciflora and other Gramineae, Leguminosae, Convolvulaceae, Malvaceae, Solanaceae and other plants. The damage is characterized by nymphs feeding on the leaves, and in severe cases, the whole leaves are eaten up and only the veins remain. Morphological characteristics adult male long 15-33mm, female 19-40mm, yellow-green, brown-green, green, front wing leading edge green, remaining light brown, broad head, oval, top of head
2019-01-16 -
How to control taro locust in rice
The scientific name Gesonulapunctifrons (Stdl) belongs to Orthoptera, Acridoidea. Distributed in Jiangsu, Zhejiang, Jiangxi, Fujian, Guangdong, Guangxi, Taiwan, Sichuan, Yunnan and other provinces and regions. Host rice, taro, lotus root, wild daffodils, sugarcane, corn and other plants. The damage was characterized by adults and nymphs gnawing on leaves or leaving epidermis on mesophyll, and the injured leaves showed purple small horizontal spots, which affected photosynthesis and hindered plant growth. Morphological characteristics female adults grow 19-22mm, male adults
2019-01-16 -
How to prevent yellowing of rice seedlings
During the period of rice seedling cultivation, it is very easy to yellowing, slow growth and weak growth, which is not conducive to the cultivation of strong seedlings, and has a serious impact on the field production seedlings and even the improvement of rice yield. The main results are as follows: 1. due to the lack of base fertilizer, the growth of etiolated seedlings before the third leaf mainly depends on the endosperm, and after the third leaf mainly depends on the root system to absorb nutrients from the soil. However, many people think that during the seedling period, rice seedlings are small and do not need much fertilizer, so the insufficient application of base fertilizer and the lack of ammonia has become the main reason for the etiolation of seedlings. Countermeasure: urea 6075 grams per hectare of seedling field
2019-01-16 -
How to control fine stripe disease of rice
Rice bacterial leaf streak is referred to as rice fine leaf streak, which is an important disease in rice production in China. The pathogen belongs to Monosporium flavum, which invades from the stomata of leaves, and the disease can occur in any growth period of rice. The disease spot is a short and thin narrow stripe, and the stripes appear between the leaf veins. according to the light observation, the disease spot is translucent, waterlogged, and turns red in the later stage, and there are a large number of bacteria on the spot, especially on the back of the leaf, it is not easy to fall off when dry. Due to the lack of disease resistance combinations in hybrid rice, and the wide occurrence area and uneven distribution of diseases, it brings great difficulties to seed quarantine.
2019-01-16 -
How to prevent and cure rice seedling shrinkage disease
The main causes of rice seedling shrinkage are: phosphorus deficiency, zinc deficiency and saline-alkali injury. The main control methods are as follows: first, phosphorus deficiency generally occurs in the powder-tillering stage after slow seedling growth, the plant is short, the leaf shape is slender and erect, the leaf color is dark green, the top of the leaf cluster is neat, the leaf pillow distance is significantly shortened, the powder tiller, the leaf tip is red, and the old leaves are reddish and even die. The main causes are (1) lack of available phosphorus in soil, (2) low soil temperature, low water temperature, or soil containing hydrogen sulfide and ferrous iron.
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 -
Prevention and Control of chilling injury in Rice at long panicle stage
The prevention and control technology of chilling injury. One is to accelerate the pollination of rice. For this kind of obstructive chilling injury, the scientific management of rice fields should be strengthened to speed up the pollination period and avoid it.
2019-01-16 -
Rice green planthopper
The scientific name is Homoptera, Homoptera. Distributed in the south and north of Zizania caduciflora and rice growing areas. Host rice, Zizania caduciflora, wild Zizania caduciflora, etc. The damage is characterized by nymphs sucking rice juice, and the injured leaves appear yellow-white to light brown or brown spots, and then the leaves gradually turn yellow and dry from the leaf tip to the base, the feces cover the leaves to form coal stains, and the female oviposition marks show water stains at the beginning, then secrete white velvet wax powder, lose water after the wound, and the plants wither and die in patches. Morphological characteristics of male adult body length 5-6.1mm
2019-01-16 -
Rice long-shouldered spinous bug and short-shouldered spinous bug
The scientific names of Clketustrigonus (Thunberg) and Jing C.pugnator belong to Hemiptera and Pentatomidae. Distributed in the Yangtze River Basin, Jiangsu, Henan, Yunnan, Guizhou and other provinces. Host rice, amaranth, thorn wide, lotus seed grass, Schizonepeta tenuifolia, grass grape, corn, soybean and so on. Damage characteristics, nymphs suck rice and other juices or damage grass and grape berries. Morphological characteristics: adult length 7.5-8.8mm
2019-01-16 -
Technology of soil testing and formula fertilization for rice
1. Principles of fertilization 1. Soil testing and formula fertilization for rice should grasp the principles of soil yield, fertilizer yield, deficiency, combination of organic and inorganic, and balanced application of nitrogen, phosphorus and potassium. The first is to measure the soil. Soil testing is the premise of soil testing formula fertilization, through the analysis and determination of soil nutrients, a more accurate grasp of soil nutrient status and fertilizer supply performance, to provide a scientific basis for formula fertilization; second, it is necessary to match the formula. Formula is the key to fertilization. On the basis of soil testing, according to soil characteristics, cultivation habits, fertilizer requirements of crops, production level and climate, etc.
2019-01-16 -
Key techniques of soil testing and formula fertilization for rice
According to the principle of soil testing and formula fertilization technology, combined with the practice of soil testing and formula fertilization in Pulandian City, 10 technical links in the process of rice soil testing and formula fertilization experiment were summarized. 1. Select representative plots and arrange experimental plots according to high, medium and low fertility cultivated areas. Fertility of the experimental plots was uniform, and fertilization of the previous crop was the same as possible. 2. Take soil samples for testing. Collect soil samples before plowing. Take "plum blossom" or "snake shape" and take 15~20 points at vertical depth.
2019-01-16 -
Water Management in different growth stages of Rice
Rice has strict requirements for water conditions, and water requirements are different in different growth stages. In order to ensure stable and high yield of rice, scientific water management should be carried out according to different growth stages. 1. Irrigation in shallow water frequently at tillering stage. Frequent irrigation in shallow water at tillering stage makes the stem of rice plant transparent, and sunlight can directly illuminate the stem of rice plant, increase water temperature and soil temperature, increase oxygen in soil, promote root development, improve fertilizer absorption capacity, promote early tillering, and improve tiller panicle rate. The depth of irrigation should be 3-5 cm according to weather conditions, and shallow water should be used on cloudy and rainy days. High
2019-01-16