-
Detailed explanation of colored bell pepper cultivation techniques, planting methods easy to understand at a glance
Select good varieties. Choose F1 hybrid varieties with large fruit, good quality and strong disease resistance, using 2000 seeds per 667 m2. Cultivate disease-free strong seedlings. Do a good job of seedbed disinfection and seed disinfection; soak seeds in 10% trisodium phosphate for 30 minutes, rinse and then soak to promote germination, preferably raising seedlings in 128-cell trays. When raising seedlings in summer and autumn, cover with shade net at noon, install insect-proof net at the air vents to prevent insects and prevent viral diseases; before transplanting, spray 1-2 times with Zhibingling II, spray 3-4 times with potassium dihydrogen phosphate, to prevent excessive growth, aging and the occurrence of diseased and weak seedlings. Fertilization, soil preparation
-
How to control onion thrips? Mastering these methods is key
Onion thrips occurs throughout the country and is a pest with a wide range of host plants. To control onion thrips, first clean up the dead branches and fallen leaves thoroughly to eliminate the source of the pests. Second, water frequently to kill the nymphs and pupae in the soil. Third, once thrips appear in the field, carry out chemical spraying for control; omethoate, phoxim, fenvalerate and the like can be used. Spraying should be done in the early morning while the dew has not yet dried, to prevent the adult insects from escaping.
-
Occurrence Patterns and Control Methods of the Ginger Stem Borer
The ginger stem borer (also known as the corn borer, belonging to Lepidoptera, Pyralidae) is a major pest harming ginger. It has a very diverse diet; when causing damage, the larvae bite and feed on tender stems, then bore into the stalks (with frass and insect droppings accumulating at the entry holes), blocking the transport of water and nutrients, causing the stems and leaves above the bore holes to turn yellow, wither, and droop, and making them extremely easy to break under external force. 1. Occurrence patterns. In our area, the ginger stem borer generally produces 3-4 generations per year, and the concentrated damage period coincides exactly with the vigorous growth period of ginger plants. The larvae move between plants to cause damage, and finally the mature
-
Occurrence and Control Methods of Rice Dwarf Disease in Japonica Rice
I. Damage Symptoms The rice plant becomes stunted, with increased tillering, dark green leaves, and transparent yellowish-white dashed line streaks on young leaves and leaf sheaths. When the disease occurs at the seedling stage, tillering is reduced and the plant cannot head; when it occurs after booting, yellowish-white streaks appear only on the flag leaf or other leaf sheaths, and late-onset plants mostly produce neck-enclosed heads, small heads, many empty and shriveled grains, and a low seed-setting rate. II. Preventive Measures Once japonica rice contracts dwarf disease, it is very difficult to cure, so comprehensive preventive measures should be actively adopted. 1. Select disease-resistant
-
Detailed Explanation of Wheat Grain Germination Methods and Operating Steps
The improved method is: let the wheat grains germinate before bottling and sterilizing. The storage substances in wheat grains are mainly starch, fat and protein. When the seeds imbibe water and cell physiological activity is reactivated, the activity of various enzymes increases. During germination, these substances are decomposed into simple-structured substances such as maltose, sucrose and amino acids, which are easily utilized by the mycelium, so the mycelium grows quickly. The specific procedure is: let the wheat grains used for spawn germinate all at once, with the sprouts reaching 1-2 times the length of the wheat grains, then dry them thoroughly in the sun for storage. On the day before making the spawn, soak the wheat grains for 12h and directly bottle
-
How to control wheat aphids more scientifically? A detailed guide to practical methods
Wheat aphids are the type of pest with the largest annual occurrence area and the most severe damage in wheat. Although wheat aphids occur and cause damage year after year, farmers still have some misunderstandings in their control. How can wheat aphids be controlled more scientifically? It is recommended to pay attention to the following three points: 1. The appropriate time to start control. In general years, the appropriate time to start controlling wheat aphids (when the number of aphids per 100 plants rises to 500) is after wheat flowering (before grain filling), generally around May 5. Starting control at this time is best. As long as the right pesticide is used and the dosage meets the requirements, generally one control treatment can solve
-
How to control rice thrips? Control methods and technical key points
(1) Life habits: The rice thrips is very small, with adults only 1 mm to 1.5 mm long, dark brown. In winter, adults overwinter in gramineous weeds and on wheat crops. During the seedling-raising period of the following year, when the seedlings grow to 2 to 3 leaves, they fly into the seedling fields to lay eggs and reproduce. The insect body is small and very active, able to fly and jump. Adults are attracted to green, and after the seedlings are transplanted, they enter the tillering stage when food is abundant, which facilitates massive egg-laying and reproduction, damaging the heart leaves and young tender tissues. In the early stage of leaf damage, small white spots appear, and the upper part of the leaf tip curls inward, causing
-
Harvesting, Processing Methods and Key Technical Points for Dwarf Lilyturf (Ophiopogon japonicus)
Dwarf lilyturf is harvested in the first or second ten days of April of the second or third year after planting. Choose a sunny day, first plow the soil to a depth of 25 cm so that the dwarf lilyturf is turned up, shake off the soil, cut off the tuberous roots and fibrous roots, put them separately into bamboo baskets, and place them in running water, trampling and rubbing them with the feet to wash away the mud and sand. Spread the washed dwarf lilyturf on a drying mat or in a drying yard to sun-dry; once the water has dried, rub it gently with the hands, then sun-dry again after rubbing, repeating this several times until the fibrous roots are rubbed off, then sun-dry until completely dry, and sieve out impurities to finish. If rainy weather occurs, use a gentle heat of 40-50°C to dry for 15-20 hours
-
Processing Methods and Technical Key Points of Ginger Juice Hard Candy
Hard candy is the densest type of all candies. The specific gravity of general hard candy is between 1.5 and 1.6. Hard candy currently sells poorly in the candy market, but if improvements are made in variety and flavor, it has great prospects. Ginger juice hard candy is rarely seen on the market, and its processing technology is as follows: 1. Raw material processing: Use tender ginger or a small portion of old ginger, wash clean, peel and crush, then put into a pulping machine to make pulp, press and filter to obtain ginger juice for later use. 2. Production process using atmospheric pressure boiling to make hard candy: (1) Sugar boiling: Hard candy contains 9
-
Five practical methods to protect wheat seedlings from freezing and cold
When the severe winter comes, doing a good job of protecting overwintering crops such as wheat from the winter cold and taking preventive measures is an important guarantee for obtaining a bumper harvest. According to different field plots, the following five methods can be used to prevent freezing and protect seedlings. First, spreading grass to protect seedlings. Some varieties with strong spring habit are sown relatively late, emerge sparsely, and have fewer tillers. For such field plots, cover them with crop straw such as wheat straw and rice straw to keep them warm, promote tiller growth, prevent freezing and strengthen seedlings, so that the wheat seedlings can safely overwinter. Second, applying fertilizer and water to the roots. For field plots where wheat seedlings have shallow roots and few tillers
条件筛选