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How to prevent and control weevil infestation when growing mangoes?
1. The mango leaf-cutting weevil is widely distributed. Adults feed on young mango leaves, causing the leaves to dry up; or the female lays eggs on young leaves and bites the young leaves off at the base, affecting plant growth. Control methods: ① During the growth period of young shoots, pick up the bitten
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What to do when bagged apples develop shriveling and cracking
Bagged apples tend to develop micro-cracks and shriveled skin after the bags are removed. This phenomenon falls into two cases: first, the fruit has already developed shriveling and cracking inside the bag, and once the bag is torn off it becomes even more severe; second, there is no abnormality when the bag is torn off, but soon after coloring, micro-cracks, shriveled skin, softening and other undesirable phenomena occur.
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What issues should be noted when fertilizing pear trees in autumn
After the pear trees are harvested, applying sufficient and good base fertilizer in time is beneficial for producing high-yield and high-quality pears the following year. Applying base fertilizer to pear trees in autumn plays a major role in the growth and development of pear trees: First, from September to November, the root system enters its second growth peak, and fertilizing at this time not only facilitates the rapid decomposition of fertilizer
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What are the common problems when transplanting muskmelons?
(1) Preparation of the planting site. After the previous crop is harvested, plowing should be done immediately. Because muskmelons require a loose and deep tilth layer, the plowing depth should be 25-30 cm, and should not be shallower than 20 cm. Deep plowing can thicken the loose soil layer, increase soil pores, activate the soil, and
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Pineapple Cultivation: Methods for Managing Sucker Removal and Retention
(1) Removing the crown bud When the crown bud reaches about 20 cm tall, its upper part opens out and its base narrows. When young roots appear at the leaf base, which is what is called "spreading tail and gripping waist," the crown bud can be twisted off by hand in a clockwise direction to be used as planting material, which fruit growers call "topping." Topping is generally carried out from late May to June.
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How to Take Emergency Protective Measures When a Navel Orange Orchard Suffers Freeze Damage
Reporter Yan Zhangwen reports: With the weather continuing cold and rainy, can navel orange trees withstand it? On the morning of January 28, the reporter conducted a telephone interview with Fang Yiwen, director of the Municipal Citrus Science Research Institute. Director Fang Yiwen, who was observing freeze damage on site, told the reporter that in parts of Ningdu, Yudu, Ganxian and other places in the north and central regions, some navel orange orchards at higher altitudes have already suffered freezing damage, with ice forming on the leaves; as temperatures drop, the freezing line will continue to advance toward the southern areas, posing a greater threat to navel orange trees. According to the weather forecast, the rain, snow and freezing weather will continue until the end of this month, and temperatures will continue to drop. There is no time to lose in doing a good job of protecting orchards against freezing, and Fang Yiwen urged the broad community of fruit growers to immediately implement the following emergency measures.
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What to Do When Summer Corn Grows "Cow-Tail Seedlings"
Recently, quite a few farmers brought corn to our station to ask about it. In their corn fields, some corn seedlings had twisted and deformed central leaves that could not unfold, and in severe cases they took on the shape of a large whip, with the tassel unable to emerge normally. Even when ear shoots could form, the kernels were not plump. This phenomenon has also occurred in previous years.
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What to do when wheat seedlings are weak and sparse? Apply fertilizer in time to promote tillering
After wheat begins tillering, the number of tillers increases continuously with the growth and development of the plant, and the total number of stems and tillers reaches its maximum around jointing. After that, the later-emerging tillers die off one after another due to insufficient nutrients and other reasons, and the number of stems and tillers becomes basically stable only after heading. Generally, after tillers emerge
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Three key points to note when applying winter manure to wheat
Weak seedlings: For wheat fields sown late, with poor soil fertility and insufficient base fertilizer, winter manure should be applied generously, mainly with quick-acting fertilizers, about 40 loads of decomposed pig and cattle pen manure per mu; or 20-25 kg of ammonium bicarbonate, or about 10 kg of urea applied as a top dressing when rain or snow falls, to promote stem growth
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How to chemically control weeds when growing peanuts
Peanut is one of the main cash crops in Yanshan, and in the cultivation process the most labor-intensive and time-consuming task is weeding. The weeds that cause relatively serious damage on peanut land include grasses such as crabgrass, foxtail, Chinese sprangletop, nutsedge, goosegrass and barnyardgrass; broadleaf weeds include thistle
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