搜索结果: 1-15 共查到“土壤学 Cotton”相关记录20条 . 查询时间(0.396 秒)
Evapotranspiration and water-use efficiency of irrigated colored cotton cultivar in semiarid regions
Bowen Ratio Crop Evapotranspiration Irrigation Treatments Seed-Cotton Yield
2013/3/4
Irrigation studies provide a framework for evaluating agricultural production and the water resource management in locations where water is scarce. Field experiments were conducted at Barbalha- CE (no...
Economic Evaluation of Soil and Foliar Applied Nitrogen Fertilization Programs for Cotton Production
Economic Evaluation Soil Foliar Applied Nitrogen Fertilization Cotton Production
2009/4/30
With increased environmental pressures, cotton producers may need to improve the efficiency of N fertilization. Including foliar applications in a cotton fertility program can improve N efficiency thr...
Integrated nutrient management in cotton-sunflower cropping system in the sandy loam soils of north India
Mung bean incorporation nutrient uptake residual fertility
2009/2/20
Two sets of field experiments were conducted during kharif and rabi seasons of 2002-’03 and 2003-’04 at New Delhi under irrigated conditions to formulate site-specific nutrient management strate...
Effects of Different Seeding Rates and Plant Growth Regulators on Early-planted Cotton
Different Seeding Rates Plant Growth Regulators Early-planted Cotton
2008/12/10
Although the early-planted cotton production system offers the potential of improved lint yield, production techniques need to be optimized to ensure consistent yield enhancement. The objectives of th...
Evaluation of Row Spacing and Mepiquat Chloride in Cotton
Row Spacing Mepiquat Chloride Cotton
2008/12/10
Mepiquat chloride (1,1-dimethyl-piperidinium chloride) is a plant growth regulator that can be used by producers to manage crop development, uniformity, and maturity. Field experiments were conducted ...
Fertilizer Additive Rate and Plant Growth Regulator Effects on Cotton
Fertilizer Additive Rate Plant Growth Regulator Cotton
2008/12/9
In-furrow applications of plant growth regulators (PGRs) and starter fertilizers have been used to improve cotton (Gossypium hirsutum L.) yields. Information about the effects of plant growth regulato...
Harvest-Aid Interactions under Different Temperature Regimes in Field-Grown Cotton
Harvest-Aid Interactions Different Temperature Regimes Field-Grown Cotton
2008/12/9
Ethephon (2-chloroethyl phosphonic acid) may interact with various defoliants in cotton (Gossypium hirsutum L.), because of differences in mode of action or optimal temperatures for activity. Field te...
Heat Unit Availability for Cotton Production in the Ogallala Aquifer Region of the United States
Heat Unit Availability Cotton Production Ogallala Aquifer Region United States
2008/12/9
Expansion of cotton (Gossypium hirsutum L.) production in the Ogallala Aquifer region of the United States can be attributed to early maturing cultivars, rising energy costs, and declining groundwater...
Measuring Maturity of Cotton Using Nodes above White Flower
Measuring Maturity Cotton Nodes White Flower
2008/12/9
Due to its indeterminate growth habit, maturation of cotton (Gossypium hirsutum L.) is affected by many environmental and cultural factors. An easy and reliable measure of its progression toward matur...
Phosphorus and Potassium Fertilization of Disk-Till and No-Till Cotton
Phosphorus Potassium Fertilization Disk-Till No-Till Cotton
2008/12/9
Conservation-tillage practices have renewed interest in research evaluating fertilization responses of cotton. Research was conducted to evaluate the cotton-yield response to P and K fertilization und...
Planting Cotton Cultivar Mixtures to Enhance Fiber Quality
Cotton Cultivar Mixtures Fiber Quality
2008/12/9
Price discounts associated with inferior cotton (Gossypium hirsutum L.) fiber quality might be avoided through alternative planting strategies involving mixing cultivars of various yield and quality c...
Response of Yield, Yield Components, and Fiber Properties of Egyptian Cotton (Gossypium barbadense L.) to Nitrogen Fertilization and Foliar-applied Potassium and Mepiquat Chloride
Yield Components Fiber Properties Egyptian Cotton Nitrogen Fertilization Foliar-applied Potassium
2008/12/9
Research to delineate nitrogen, potassium, and mepiquat chloride (MC) effects on cotton performance has been primarily conducted with upland cotton (Gossypium hirsutum L.). A field study was conducted...
Winter Annual Cover Crops in a Virginia No-till Cotton Production System: II. Cover Crop and Tillage Effects on Soil Moisture, Cotton Yield, and Cotton Quality
Virginia No-till Cotton Production Winter Annual Cover Crops
2008/5/19
Winter annual cover crops could help control soil erosion problems on sloping Piedmont soils in a no-till cotton (Gossypium hirsutum L.) production system. Field experiments were conducted from 1995 t...
Transgenic, herbicide-resistant cotton and recently commercialized equipment to spindle-pick 38-cm rows have renewed interest in narrow-row cotton production. Published research relative to mepiquat c...
Soil Calcium: Magnesium Ratios and Lime Recommendations for Cotton
Cotton Lime Recommendations Magnesium Ratios Soil Calcium
2008/5/14
Some crop managers are concerned that repeated use of dolomite lime, which contains 10 to 15% Mg, will produce excessively high soil Mg+2 levels relative to Ca+2 and reduce cotton (Gossypium hirsutum ...