About cotton cultivation
(1) removing leaf branches. It is commonly known as "hitting the public branch". Leaf branches grow fast, consume a lot of nutrients, inhibit the growth of fruit branches and affect the development of buds and bolls, and cause poor ventilation in the lower part of cotton plants, which is prone to diseases and insect pests, so they should be removed in time. If the cotton plant grows too vigorously, the leaf branch and the leaf under the fruit branch can also be knocked off together, and the masses are called "taking off the trouser leg". When taking off the trouser leg, if there is a bud on the leaf branch, the top of the leaf branch can be knocked off and reformed.
(2) smear superfluous buds. Commonly known as "wipe the ear". The superfluous buds growing at the junction of the fruit branch and the main stem only consume nutrients and promote their budding, so they should be erased at any time and generally rub the superfluous buds 2 to 3 times during the whole growing period. Sometimes the middle and upper fruit branches can appear in the axils of the leaves, so we should pay attention to the difference when wiping the superfluous buds and retain them to increase the chance of setting peaches.
(3) pick a sideline. In the case of interlaced luxuriant branches and high density of cotton, timely removal of the center on the fruit branch has a good effect on ventilation and light transmission, regulation, balance of nutrient distribution, promotion of early maturity, control of horizontal growth, convenient operation of cotton field and so on.
To this end, generally in mid-July, late July to the end of August, the top of the middle and lower part of the fruit should be picked by the side heart, so that the plant type is "treasure".
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State trial of Handan 284 cotton
Handan 284 cotton was selected and bred by Handan Institute of Agricultural Sciences in Hebei Province. it was approved by the National crop New Variety examination and approval Committee in 2001 and listed as a variety of "National Science and Technology key extension Plan" by the Ministry of Science and Technology in 2002. Xinxiang Xincheng seed industry has the right to develop and manage this variety in China. The variety was not sown on April 15-20 with plastic film mulching, and sown in open field on April 20-30, with 1600 plants per mu and 2000 plants per mu in dry and thin land. 1999 / 2000
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It is cost-effective to apply peach fertilizer to cotton
This year, due to the influence of drought and waterlogging and the recent hot and high temperature, the progress of cotton development is very uneven, especially the number of peaches in cotton is very different. in cotton fields with earlier planting and better management, there are an average of 810 early-season peaches per plant in cotton fields. High-yield farmers have more than 20 cotton early-season peaches, while in general, there are only 4-6 cotton early-season peaches in the field. In terms of cotton growth process, field cotton has now generally entered the boll setting period. The period when cotton is concentrated on peach is the period when the largest amount of fertilizer is needed. Judging from the period of cotton and peach bearing
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