这里是Articles模块搜索页
条件筛选
  • What are the reasons for soybean plants flowering but not setting pods?

    Liu Dezheng, a farmer from Xihe in Xinpu Town, Xiaonan District, and some farmers from Xiaogang Town and other places ask: Why did soybeans (yellow beans) flower but not set pods this year, or produce empty pods and shriveled seeds? According to our field surveys, in fact, the vast majority of soybeans this year did set pods; the cases of flowering without pod set or empty pods and shriveled seeds occurred only in scattered areas and among a minority of farmers. Through field investigation and analysis, the main reasons are as follows. First, from the perspective of varieties. This year, early and medium-maturing varieties generally flowered and set pods well, while among late-maturing varieties, some soybeans sown relatively late showed flowering without pods or empty pods and shriveled seeds.

  • What are the key field management points for cotton during the flowering and boll-setting stage?

    The flowering and boll-setting stage of cotton is the key period for yield formation. In addition to good fertilizer and water management, the following points should also be done well: chemical regulation. Chemical control during the flowering and boll-setting stage can shift more nutrients from vegetative growth to reproductive growth and reduce the shedding of squares and bolls. It is recommended that for cotton fields with strong growth, at the beginning of flowering, spray 2.0-2.5 grams of mepiquat chloride per mu, or 8-10 milliliters of 25% chlormequat. At full flowering, carry out chemical control again according to growth, spraying 2.5-3.0 grams of mepiquat chloride per mu, or 2

  • Technical Points for Spraying Foliar Fertilizer on Cotton to Increase the Boll Setting Rate

    This year, the summer-ripening crops in Haimen City were delayed in maturity due to climate effects, and after the summer harvest there was a continuous drought until mid-July, when it rained heavily for several consecutive days. This weather pattern of drought followed by rain was very unfavorable for the survival and growth of the already delayed transplanted cotton, and the growth process was delayed by about 10 days compared with normal years. To increase the formation speed of flower buds in the late stage of cotton and improve the boll setting rate, it is recommended to strengthen fertilizer management in the late stage by means of foliar spraying. 1. Combine pest control with proper timing of fertilizer application. Not every pest control treatment requires

  • What to do when cotton develops red leaf blight during the boll-setting stage

    Control measures for cotton red leaf blight: 1. Apply fertilizer reasonably, and skillfully apply the cotton topping fertilizer; nitrogen, phosphorus and potassium should be applied together or foliar fertilizer should be applied. 2. Strengthen field management, cultivate frequently, improve root respiration conditions, promote root development, prune and remove side branches in time, remove old leaves and control pests and diseases. 3. Spray for protection, using 70% mancozeb or 75% chlorothalonil 600-800 times solution or 70% thiophanate-methyl 800-1000 times solution plus foliar fertilizer (potassium dihydrogen phosphate, Lvzhiyuan, etc.) for spraying, once every 5-

  • What are the key measures for managing cotton during the flowering and boll-setting stage?

    The main goals of cotton management during the flowering and boll-setting stage are: preserve bolls, increase boll weight, and prevent premature senescence. 1. Apply heavy flowering and boll fertilizer: The flowering and boll-setting stage is the period when cotton needs the most fertilizer throughout its entire growth period. For cotton fields with high soil fertility, abundant rain and good soil moisture, and vigorous cotton plant growth, topdressing can be done at the full flowering stage; for cotton fields with average soil fertility, drought and poor soil moisture, and weak cotton plant growth, early and heavy application should be done, with topdressing at the initial flowering stage. Generally, apply 15-20 kg of nitrogen-potassium compound fertilizer per mu. Continue to do a good job of intertillage and loosening the soil, following the principle of shallow rather than deep cultivation. 2. Water during drought, drain during waterlogging

  • Technical Guidance on Cotton Management During the Flowering and Boll-setting Stage

    The flowering and boll-setting stage of cotton is a critical period when vegetative growth and reproductive growth proceed together. During this stage, the plant gradually shifts from being dominated by vegetative growth to being dominated by reproductive growth. The plant grows vigorously with a large daily growth increment. It is the peak period of fertilizer and water demand in the plant's entire life cycle, and also the key period for forming economic yield. Timely and meticulous management is essential, adapted to local conditions and to the condition of the seedlings. Attention must be paid to pest and disease control, chemical regulation, pruning, and intertillage loosening of the soil, while at the same time rationally and scientifically formulating fertilizer and irrigating promptly and in appropriate amounts, so that individual plants grow steadily, the plant architecture and field population structure are reasonable, ventilation and light penetration are good,

  • How to manage cotton during the flowering and boll-setting stage? Jinnan District Agriculture and Forestry Bureau reminds cotton farmers to master the techniques

    The flowering and boll-setting stage of cotton in Tianjin generally begins in early July and ends at the end of August, lasting 55 days. According to surveys, most of the cotton fields in our district have entered the flowering and boll-setting stage. Field management during the flowering and boll-setting stage is very important. This period is when cotton grows and develops most vigorously, and it is a period of intricate and complex contradictions among vegetative growth and reproductive growth, individuals and populations, and the cotton crop and the environment, so it is the period that determines yield. Cotton field management during this period should focus on doing the following key tasks well: 1. Increase potassium fertilizer application. Increasing

  • Surrogate sow gives birth to 9 cloned pigs in a single litter, setting a world record

    On New Year's Day, January 1, keepers at the breeding pig farm of Harbin Sanyuan Livestock Industry Co., Ltd. carefully fed 6 small cloned pigs. The photo with the nursing bottle shows the careful feeding of the two weaker cloned piglets to ensure their healthy growth. On the evening of December 23, 2006, surrogate sow k09, studied by the research group led by Dr. Liu Zhonghua, professor at Northeast Agricultural University, gave birth naturally to 9 cloned Northeast Min pigs, setting a world record for the number of cloned piglets born in a single litter. All 9 cloned pigs were Northeast Min pigs, and 6 of them were in good health

  • What to do when a larch improved seed base does not flower and sets little seed? Techniques for flowering and seed setting

    Fund project: Construction project of the larch and Chinese pine improved seed base at Houzhenzi Forest Farm, Zhouzhi County