-
How should hybrid rice be planted to achieve high yields?
How should hybrid rice be planted to achieve high yields? Technical guidance requested. When planting hybrid rice, pay attention to the following points: 1. Carefully select good seed. The hybrid rice combinations currently being promoted nationwide include double-season early rice, double-season late rice, single-season medium rice early-maturing varieties, single-season medium rice late-maturing varieties, hybrid japonica rice, etc. Different hybrid rice...
-
How to fertilize hybrid rice: a detailed explanation of the methods
How to sprout hybrid rice seeds? What methods work well? In recent years, the main method tested and promoted has been a new safe and rapid sprouting method combining "warm water soaking of seeds with an electric blanket for sprouting," which has effectively solved the difficulty of soaking and sprouting seeds of high-quality rice and hybrid early rice, and is well received by farmers. The main advantages of this method: first...
-
Causes of High Empty and Filled Grain Rates in Hybrid Rice and Control Methods
What should you do if hybrid rice has many empty and shriveled grains? What methods can be used to control the high rate of empty and shriveled grains in hybrid rice? The following methods can be used for control: 1. Adapt measures to local conditions and select hybrid varieties with good recoverability. First, choose varieties with strong tillering ability, sufficient effective panicles, and high seed-setting rate and 1000-grain weight. Second, choose...
-
What are the main rice pests and diseases? Common types at a glance
How to raise rice seedlings well? Methods wanted. Rice seedling-raising techniques: 1: How to determine the seedling-raising period? For insulated dry seedling-raising of rice, start raising seedlings and sowing after the air temperature steadily passes 5°C-6°C (after covering with plastic film or greenhouse film, the temperature rises above 12°C). In Heilongjiang Province, this is generally in mid-to-late April; do not sow in May. The best sowing period is April...
-
How to prevent and control damping-off disease when raising rice seedlings
How to prevent and control damping-off disease when raising rice seedlings? Asking for guidance. Although dry-raised rice seedling beds are not prone to seedling rot, they are most susceptible to damping-off disease causing seedling death, with 20%-30% loss in mild cases and over 50% in severe cases. The following measures can effectively prevent and control damping-off disease. 1. Acid adjustment treatment of soil: For neutral and alkaline soil, before sowing...
-
Detailed Explanation of Pollution-Free Control Methods for Rice Pests and Diseases
Pollution-free methods for controlling rice pests and diseases: (1) Rice field plowing and water-soaking technique for killing borers: during the peak pupation period of the overwintering generation of rice borers (before March 20 in southern Jiangxi, April 1 in central Jiangxi, and April 10 in northern Jiangxi), plow winter fallow fields and green manure fields, then flood with deep water and soak, so that the borers cannot emerge normally, thereby killing the pupae and borers and reducing the occurrence base...
-
What are the methods for controlling rice pests and diseases?
What are good ways to control pests and diseases in rice? Asking for advice. The success or failure of rice pest and disease control plays a vital role in rice yield. For the control of rice pests and diseases, first, select varieties resistant to pests and diseases; second, fertilize reasonably, applying more organic fertilizer and phosphorus and potassium fertilizer; third, use water scientifically, keep the field dry, and during the rainy period pay attention to clearing ditches and draining water...
-
When is the most critical time for rice pest and disease control?
When should you pay attention to rice pest and disease control? How to achieve good control results? From sowing to the seedling stage, farmers should focus on controlling seed-borne diseases (bakanae disease, rice blast at the seedling stage, white-tip nematode disease, etc.), the small brown planthopper, and the first generation of stem borers. At the rice booting stage, farmers should focus on controlling the brown planthopper, rice leaf roller, stem borers, ear blast,...
-
Rice Pest and Disease Control Methods and Key Technical Points
How to control rice pests and diseases? What techniques can be borrowed for rice pest and disease control methods: 1. Rice black sclerotial stem rot. A fungal disease of the stem base of rice at the adult plant stage, also called rice stem rot or small sclerotial disease. The pathogens are Sclerotium hydrophilum and Sclerotium oryzae of the Deuteromycotina. Sexual state...
-
What are the methods for controlling rice pests and diseases in summer?
How to control pests and diseases in rice in summer? Need guidance. According to trend analysis, in summer and autumn, rice pests and diseases focus on the "three insects and three diseases" (namely rice leaf roller, rice planthopper, striped stem borer, rice blast, rice false smut, and sheath blight). In early September, the sixth (4th) generation rice planthopper, the sixth (4th) generation rice leaf roller, the third generation...
条件筛选