-
What are the key points for spraying foliar fertilizer on wheat?
Key points for spraying foliar fertilizer on wheat
-
What are the precautions for spraying foliar fertilizer on rice?
Timing: Generally, spraying at the late booting, initial heading, grain-filling and full heading stages of early rice is most suitable, and spraying once per mu takes over an hour. If spraying fertilizer coincides with the heading and flowering stage, it should be done in the morning before the flowers open and after 4 p.m. Preparing liquid fertilizer: Various quick-acting nitrogen, phosphorus and potassium fertilizers, monopotassium phosphate, triacontanol, borax, silkworm droppings and human and livestock urine can all be used as foliar fertilizer. The amount used per mu is small, but they must first be processed into liquid fertilizer. Quick-acting chemical fertilizers should be dissolved in 5-10 times their amount of water the day before spraying to prevent burning the rice leaves from over-spraying. Human and livestock urine should first be left
-
The role and application method of spraying paclobutrazol on rice
Paclobutrazol is a highly active plant growth retardant and broad-spectrum fungicide. Its internationally used code is pp333, and the code for the product made in China is MET. Its physiological effects on rice are mainly dwarfing, promoting tillering and improving stress resistance. Moreover, after transplanting, the seedlings turn green quickly, tiller early, the number of effective panicles increases, and the seed-setting rate and 1000-grain weight increase. It is a simple, easy and effective measure to increase yield. Experiments in various places in Liaoning in recent years have found that rice seedlings sprayed with paclobutrazol show the following changes compared with the control: 1. The seedlings become shorter. Spraying at the rice seedling stage
-
Several foliar fertilizers suitable for spraying in the late growth stage of wheat
Spraying foliar fertilizers in the late stage of wheat cultivation can extend the functional period of canopy leaves, promote the transport of photosynthates to the grains, increase the number of filled grains, and raise the thousand-grain weight and quality, generally increasing yield by 5%-10%. The commonly used foliar fertilizers include the following: 1. Yemianbao contains humic acid and trace elements, which can enhance the stress resistance of wheat and supplement trace elements. Spray once each at the booting stage and after heading and flowering, 7-10 milliliters per mu each time, plus 2% urea, diluted in 30 kg of water for spraying. It can generally increase the thousand-grain weight by 1-2 grams and increase yield
-
Spraying potato plants with paclobutrazol helps regulate crop growth
Deformed potato tubers are mainly caused during the tuber enlargement stage by adverse conditions such as high temperature and drought, which inhibit the growth of the expanding tubers and temporarily halt their growth. Later, due to rainfall or irrigation, the growing conditions are restored, and the tubers resume growth accordingly. At this point, the organic nutrients entering the tubers, at the buds with strong physiological activity...
-
Correct Methods and Precautions for Spraying Paclobutrazol on Radishes
Cherry radish is a small type of radish with tender flesh, rapid growth, and attractive color. It can be eaten in many ways, including raw, stir-fried, pickled, and as a side dish. It is both a vegetable and a fruit, and is not only well received by resident consumers but also meets the special supply needs of hotels and restaurants, becoming a table...
-
What to do when rice has difficulty heading? Spraying gibberellin can alleviate it
When rice has difficulty heading, or shows the "neck-enclosed" phenomenon, the grains enclosed in the leaf sheath cannot emerge in time for pollination and fertilization, and generally become empty or blighted grains, greatly affecting yield. There are many causes of this phenomenon: in some cases the variety itself is more prone to the neck-enclosed phenomenon, and it becomes more severe under adverse environmental conditions; in others...
-
How to prevent frost damage in rapeseed? Applying to the soil and spraying on the leaves works well
Rapeseed is a winter crop. If the variety is chosen improperly, sowing or transplanting is too late, or fertilization is improper, frost damage is likely to occur. To prevent frost damage in rapeseed, in addition to selecting cold-resistant and hardy varieties, sowing at the right time, and raising strong seedlings for transplanting, the following technical measures should also be emphasized: increasing the application of phosphorus and potassium fertilizers. Phosphorus can promote the development of the rapeseed root system and enhance the...
-
What is the difference between tomato flower dotting and flower spraying?
What is the difference between tomato flower dotting and flower spraying? Please explain. Although tomato flower dotting and flower spraying are different methods, they achieve the same result by different means. Relatively speaking, tomato flower spraying saves more time than flower dotting, mainly reflected in two differences. First is the number of sprayings. Flower dotting is generally done once during flower bud differentiation...
-
What precautions should be taken when spraying pesticides at the rice heading stage?
What should be noted when spraying pesticides at the rice heading stage? Please give a detailed introduction. Around the heading stage of rice, it is generally a period when various diseases and insect pests occur and cause damage, requiring the use of chemical pesticides for control, but applying pesticides during this growth stage can easily cause pesticide damage with some pesticides, resulting in losses that should not occur, and attention should be paid to this. 1. Triazole...
条件筛选