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How to top-dress head cabbage properly? Detailed explanation of the correct method
How should you top-dress head cabbage when growing it? Please explain the method. Head cabbage's fertilizer requirements are mainly nitrogen and potassium, with a suitable amount of phosphate fertilizer. Throughout the entire growth process, the combined ratio of the three major elements N:P:K is 3:1:4. Analyzing by growth stage, the seedling stage needs more chlorine, reaching a peak at the rosette stage. By...
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What is the relationship between wheat Fusarium head blight and humidity?
What effect does humidity have on wheat Fusarium head blight? Please give an introduction. The effect of humidity on the occurrence of wheat Fusarium head blight is greater than the effect of temperature. Long periods of continuous high humidity are the primary condition for disease onset. Perithecia can only be produced when the soil surface is wet. According to observations, when the relative humidity at the soil surface reaches above 80%, perithecia...
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When is the best time to control wheat fusarium head blight
When is the best time to control wheat fusarium head blight? Please advise. The fusarium head blight pathogen levels are generally high, mostly exceeding the epidemic threshold. Once an epidemic occurs, it not only seriously affects wheat yield but also causes the wheat to lose its usable value. According to observations, under drought conditions, most wheat varieties are susceptible to fusarium head blight. In particular...
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What causes summer cabbage to not form heads?
Why does summer cabbage not form heads? How should it be prevented and controlled? Please provide guidance. When growing Chinese cabbage in summer, the phenomenon of leaves not curling and heads not forming often occurs, affecting its commercial value and edible value. This is a problem often encountered in summer Chinese cabbage cultivation. Causes: 1. Wrong variety. ...
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What to Do When Rice Has Difficulty Heading? Causes and Solutions
What to Do When Rice Has Difficulty Heading? What Medicine Can Solve It? When rice has difficulty heading, or shows the phenomenon of neck enclosure, the rice grains wrapped inside the leaf sheath cannot emerge in time for pollination and fertilization, and generally become empty and blighted grains, greatly affecting yield. There are many reasons for this phenomenon; in some cases the variety itself has a relatively severe tendency toward neck enclosure...
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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...
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What are the key management points for rice at the heading and flowering stage?
How should rice be managed at the heading and flowering stage? Please explain the methods. When rice encounters continuous low temperature and rainy weather at the heading stage, fungicides should generally be applied to control rice blast. For susceptible varieties, two applications should be made: at the breaking stage (10%-50% of rice in the field breaking) and at the full heading stage (80% of rice panicles in the field emerged). Suitable fungicides include isoprothiolane...
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How should water be managed during the heading and grain-filling stage of rice?
How should water be managed during the heading and grain-filling stage of rice? Please explain. Mid-to-late July is when rice enters the heading and grain-filling stage, and scientific water management is quite critical for increasing rice yield and achieving high yields. For reference, see below: 1. The heading and flowering stage is a period when rice is relatively sensitive to water, second only to the late booting stage in sensitivity...
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What are the key management techniques for rice during the heading and grain-filling stage?
How to manage rice well during the heading and grain-filling stage? Please provide an introduction to the management methods. The heading and grain-filling stage of rice refers to the period from heading to yellow ripeness. This period is critical for determining grain number and grain weight. The goals of field management are: maintaining roots, protecting leaves, and improving the seed-setting rate and 1000-grain weight. The main field management measures...
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How to apply pesticides around rice heading? Detailed explanation of timing and method key points
How to apply pesticides around rice heading? Please give guidance and introduction. Whether early rice or late rice, around heading is generally the period when multiple diseases and pests occur and cause damage, requiring chemical pesticide control, but applying pesticides during this growth stage can easily cause phytotoxicity and undue losses, which deserves attention....
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