CN103548539A

CN103548539A - Culturing method for increasing yield of cotton in pluvial area

Info

Publication number: CN103548539A
Application number: CN201310547057.9A
Authority: CN
Inventors: 徐德芳; 王智华; 娄金华; 苗兴武; 徐文凯; 关宏珍
Original assignee: 徐德芳; 关宏珍
Priority date: 2013-11-08
Filing date: 2013-11-08
Publication date: 2014-02-05
Anticipated expiration: 2033-11-08
Also published as: CN103548539B

Abstract

The invention relates to a culturing method for increasing yield of cotton in a pluvial area in the technical field of crop planting. The method comprises the steps of the early stage planting preparation: applying 37.5-42.5 Kg of urea, 26.5-32.5 Kg of diammonium hydrogen phosphate, 17.5-22.5 Kg of potassium sulphate in the land per mu once, wherein the sowing time is 5-20 days later than the conventional sowing time; planting final-stage management: after seedlings are exposed, reserving 10-20 thousands in the land per mu; removing main stems when 1-2 fruit spurs grow on each plant, only remaining the fruit spurs to grow, remaining 1-2 fruit spurs of each plant, and spraying AFD and maleic hydrazide to the whole plants after the main stems are removed; spraying the AFD to the whole plants during sprouting and blossoming twice; remaining 4-6 cotton bolls at each plant in the cotton boll period. The technical effects are mainly presented in that 1, the culturing method is simple to master and easy to manage; 2, the cotton yield can be greatly improved, and by the 3 lands in the test, the yield per mu is 400-600 Kg seed cotton; 3, mulching is not needed in the planting period, so white pollution and cost are reduced; 4, the plant height is 30-60 centimeters, and the plants are lodging-resistant and easy for mechanical harvesting.

Description

Area of heavy rainfull Yield Increase In Cotton cultivation method

Technical field

The present invention relates to a kind of area of heavy rainfull Yield Increase In Cotton cultivation method in proportion of crop planting technical field.

Background technology

In China, area of heavy rainfull plant cotton output is generally very low, through our years of researches, find, cause its main cause yielding poorly to be to exist the contradiction nourish and grow with reproductive growth, density is higher nourish and grow with reproductive growth contradiction more sharply, more unmanageable.Particularly, at cotton flowering and boll-setting period, due to rainy cotton minor matters, the cauline leaf riotous growth of causing, upper strata affects the ventilative printing opacity of lower floor and causes rotten peach, and when serious, flower bud bell comes off (after coming off, becoming rotten peach) up to more than 60%, reduces output; A large amount of rotten peaches are caused again the waste of nutrient in soil simultaneously.Cotton minor matters undue growth also can cause easy lodging in addition, and ripe concentration degree is poor, finally causes mechanization cotton receiving difficulty.

Summary of the invention

The object of the invention is for prior art problem, provide a kind of contradiction of can fine solution area of heavy rainfull cotton nourishing and growing with reproductive growth at flowering and boll-setting period, significantly the area of heavy rainfull Yield Increase In Cotton cultivation method of large raising output of cotton.

Technical scheme of the present invention is

Plantation early-stage preparations: every mu once applies urea 37.5-42.5 kilogram, two ammonium 26.5-32.5 jin, potassium sulphate 17.5-22.5 jin, more conventional delay of sowing time 5-20 days;

Plantation final-period management: after emerging, every mu retains 1-2 ten thousand strains; In every strain, just stem is removed during long 1-2 fruit branch, only retain fruit branch growth, every strain retains 1-2 fruit branch, and after removing stem, complete stool sprays end fluorine enlightening and maleic hydrazide; When just flower is contained flower, complete stool sprays twice of Chinese mugwort fluorine enlightening again; The cotton boll phase, every fruit branch retained 4-6 cotton boll.

In such scheme, removing the amount that sprays Chinese mugwort fluorine enlightening and maleic hydrazide after stem is that every mu of 25-35 milliliter Chinese mugwort fluorine enlightening and 25-35 milliliter maleic hydrazide are watered 15 kilograms; The amount spraying for twice when just flower is contained flower is that 65-75 milliliter Chinese mugwort fluorine enlightening is watered 15 kilograms.

Select waterlogging-resistant land Insect Resistant Cotton and the first-filial generation of sea-island cotton, or the weak non-Bt cotton kind of leaf bud growth.

The present invention changes plane pruning method into by the three-dimensional training type in past and improves ventilative printing opacity condition, and removing nourishes and grows retains pure reproductive growth and solved the prosperous length difficult problem method sharp-pointed with reproductive growth contradiction, Hua Ling comes off serious of nourishing and growing in highdensity rainy season.Its technique effect is mainly reflected in: the one, and this cultivation method is easy to learn, is easy to management; The 2nd, can increase substantially output of cotton, through 3 plot of experiment, per mu yield is 400-600 kilogram of unginned cotton; The 3rd, without overlay film, reduce white pollution and reduce costs planting season; The 4th, plant height 30-50 centimetre, resistant to lodging, ripe concentrating, easily mechanized harvest.

Embodiment

Embodiment 1: early-stage preparations soil and fertilizer once applies 80 jin of long-acting carbamides, two 60 jin of ammoniums, 40 jin of potassium sulphates; Select gold according to North China, to delay the sowing time May 15-No. 30 rich cotton No. 1; Every mu retains 20,000 more than fruit branch.Every mu of 10,000 strains when every strain retains 2 fruit branches, every fruit branch retains 4-6 cotton boll, every mu of 80000-120000 cotton boll.When firm long 1-2 fruit branch, stem is removed and only retain fruit branch growth.When removing stem, 30 milliliters of Chinese mugwort fluorine enlightening are watered to 30 jin of spray complete stools with 30 milliliters of maleic hydrazides, just flower is contained to spend and 70 milliliters of Chinese mugwort fluorine enlightening is watered to twice of 30 jin of spray complete stool again.

Embodiment 2: early-stage preparations soil and fertilizer once applies 80 jin of long-acting carbamides, two 60 jin of ammoniums, 40 jin of potassium sulphates; Select No. 1, the assorted Lu Haimian in east to delay the sowing time May 5-No. 20 according to East China; Every mu retains 20,000 more than fruit branch.Every mu of 20,000 strains when every strain retains individual fruit branch, every fruit branch retains 4-6 cotton boll, ten thousand cotton bolls of every mu of 8-12.When firm long 1-2 fruit branch, stem is removed and only retain fruit branch growth.When removing stem, 25 milliliters of Chinese mugwort fluorine enlightening are watered to 30 jin of spray complete stools with 35 milliliters of maleic hydrazides, just flower is contained to spend and 65 milliliters of Chinese mugwort fluorine enlightening is watered to twice of 30 jin of spray complete stool again.

Claims

1. an area of heavy rainfull Yield Increase In Cotton cultivation method, is characterized in that planting early-stage preparations: every mu once applies urea 37.5-42.5 kilogram, two ammonium 26.5-32.5 jin, potassium sulphate 17.5-22.5 jin, more conventional delay of sowing time 5-20 days; Plantation final-period management: after emerging, every mu retains 1-2 ten thousand strains; In every strain, just stem is removed during long 1-2 fruit branch, only retain fruit branch growth, every strain retains 1-2 fruit branch, and after removing stem, complete stool sprays end fluorine enlightening and maleic hydrazide; When just flower is contained flower, complete stool sprays twice of Chinese mugwort fluorine enlightening again; The cotton boll phase, every fruit branch retained 4-6 cotton boll.

2. area of heavy rainfull according to claim 1 Yield Increase In Cotton cultivation method, is characterized in that: removing the amount that sprays Chinese mugwort fluorine enlightening and maleic hydrazide after stem is that every mu of 25-35 milliliter Chinese mugwort fluorine enlightening and 25-35 milliliter maleic hydrazide are watered 15 kilograms; The amount spraying for twice when just flower is contained flower is that 65-75 milliliter Chinese mugwort fluorine enlightening is watered 15 kilograms.

3. area of heavy rainfull according to claim 1 and 2 Yield Increase In Cotton cultivation method, is characterized in that: cotton seed is selected waterlogging-resistant land Insect Resistant Cotton and the first-filial generation of sea-island cotton, or the weak non-Bt cotton kind of axillary bud growth.