Fewer is better than wrong; slower is better than losing trust.
GLOBAL AGRICULTURAL KNOWLEDGE INFRASTRUCTURE
Make agricultural knowledge
trustworthy, accessible, and preserved for generations
Using the world sugarcane knowledge system as its first model, GAKI connects encyclopedias, research, images, videos, machinery, experts, and real agricultural practice.
GAKI ORIGINAL SCIENCE FILM · RHIZOSPHERE ECOLOGY
The Underground Microbial World of Sugarcane
甘蔗地下微生物世界
How root exudates awaken underground nutrient cycling
根系分泌物如何唤醒地下养分循环
Follow new roots, root hairs, organic acids, bacteria, fungi, biofilms, nutrient mobilization, membrane uptake and xylem transport.
从新根进入土壤开始，连续观察根毛、有机酸、微生物、养分活化和根系吸收。
Scientific boundary: underground processes are science-based visualizations, not microscope recordings.
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20 underground processes · Bilingual image PDFRead all 20 science pages in one expandable viewerOpen viewer⌄
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GAKI ORIGINAL SCIENCE FILM · SOIL PHOSPHORUS CYCLE
Phosphorus Mobilization and Uptake in Sugarcane
甘蔗磷素活化与吸收
How fixed phosphorus becomes phosphate that roots can absorb
固定态磷如何变成根系可吸收的磷酸根
Follow iron and aluminum fixation, calcium phosphate, organic phosphorus, root hairs, organic acids, microbes, mycorrhizae, membrane uptake and xylem transport.
连续观察土壤磷固定、活化、微生物作用、根毛吸收和木质部运输。
Scientific boundary: underground processes are science-based visualizations informed by soil chemistry, plant nutrition and rhizosphere microbiology.
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20 phosphorus processes · Bilingual image PDFRead all 20 science pages in one expandable viewerOpen viewer⌄
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GAKI ORIGINAL SCIENCE FILM · LIFE-CYCLE NUTRITION DIAGNOSIS
Phosphorus Nutrition and Deficiency Diagnosis Across the Sugarcane Life Cycle
甘蔗全生育期磷营养与缺磷诊断
From seedlings and maturity to ratoons: recognizing phosphorus needs and deficiency
从幼苗、成熟到宿根，辨别甘蔗何时需要磷
Follow germination, tillering, grand growth, maturity and ratooning, including height, older-leaf symptoms, look-alike stresses, soil fixation, sampling and precise placement.
观察株高变化、老叶缺磷表现、相似胁迫鉴别、土壤固定、取样确诊和精准施用。
Everyone, including unregistered visitors, can watch free. Film and full-PDF downloads require sign-in and at least 1 contribution point.
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20 life-cycle phosphorus and diagnosis scenes · Bilingual image PDFRead all pages in one expandable viewer instead of a scattered gridOpen viewer⌄
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GAKI ORIGINAL SCIENCE FILM · LIFE-CYCLE NITROGEN MANAGEMENT
Nitrogen Nutrition, Deficiency Diagnosis and Efficient Use Across the Sugarcane Life Cycle
甘蔗全生育期氮营养、缺氮诊断与高效施用
From older-leaf yellowing to nitrogen loss: when and how sugarcane needs nitrogen
从老叶黄化到氮素损失，看懂甘蔗何时、如何需要氮
Explore soil nitrogen cycling, stage-specific demand, deficiency, excess, look-alike yellowing, split application, root-zone placement and monitoring.
认识土壤氮循环、萌芽与分蘖、伸长高峰、成熟与宿根，辨别缺氮、过量氮和相似黄化。
Everyone can watch free. There is no universal nitrogen rate; actual inputs require soil supply, yield target, local guidance and weather. Film and full-PDF downloads require sign-in and at least 1 contribution point.
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20 nitrogen nutrition, diagnosis and efficient-use scenes · Bilingual image PDFRead all pages in one expandable viewer instead of a scattered gridOpen viewer⌄
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GAKI ORIGINAL SCIENCE FILM · WATER AND SUGAR TRANSPORT JOURNEY
Potassium Nutrition, Deficiency Diagnosis and Efficient Use Across the Sugarcane Life Cycle
甘蔗全生育期钾营养、缺钾诊断与高效施用
Follow potassium through soil, roots, stomata and the sugar-transport system
跟随钾离子穿越土壤、根系、气孔和糖运输通道
Aerial, inside-the-plant and field-clinic views explain water regulation, sugar transport, resilience and diagnostic clues.
用航拍、体内穿梭和田间植物医生镜头，认识钾的保水、运输、抗逆作用和缺钾线索。
Everyone can watch free. There is no universal potassium rate; actual inputs require locally calibrated soil and leaf tests, soil texture, yield target, weather and nutrient balance. Film and full-PDF downloads require sign-in and at least 1 contribution point.
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20 potassium nutrition, diagnosis and efficient-use scenes · Bilingual image PDFRead all pages in one expandable viewer instead of a scattered gridOpen viewer⌄
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SUGARCANE UNDERGROUND MICROWORLD · FILM 06
Sugarcane’s Calcium Framework: From Root Tips to Soil Amendment
甘蔗的钙骨架：从根尖生长到土壤改良
See sugarcane as a green tower under continuous construction
把甘蔗看作一座持续建造的绿色高楼
Journey through root tips, meristems, cell walls and xylem flow to explore calcium supply, young-tissue warning signs and evidence-based soil amendment choices.
进入根尖、生长点、细胞壁和木质部水流，认识酸性土壤中的钙供应、幼嫩组织预警，以及石灰、石膏和白云石的科学选择。
Everyone can watch free. There is no universal calcium rate. Lime, gypsum, dolomite and other materials must be selected and dosed from soil and crop tests, pH, soil depth and local agronomic advice. Film and full-PDF downloads require sign-in and at least 1 contribution point.
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20 calcium-framework, root-growth and soil-amendment scenes · Bilingual image PDFRead all pages in one expandable viewer instead of a scattered gridOpen viewer⌄
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SUGARCANE UNDERGROUND MICROWORLD · FILM 07
Sugarcane's Green Energy Core: Magnesium, Chlorophyll and Efficient Photosynthesis
甘蔗的绿色能量核心：镁、叶绿素与高效光合
See each sugarcane leaf as a solar factory powered by magnesium
把甘蔗叶片看作一座由镁点亮的太阳能工厂
Follow magnesium from soil exchange sites and root uptake through xylem transport into chloroplasts and chlorophyll, then learn how to recognize interveinal chlorosis on older leaves.
从土壤交换位点、根毛吸收到木质部运输，再进入叶绿体与叶绿素中心，认识镁如何参与捕获光能、酶活化及甘蔗生长，并学习辨别老叶脉间黄化。
Everyone can watch free. Leaf color alone cannot confirm the cause. There is no universal magnesium rate; material and rate should reflect soil and leaf tests, pH, texture, K-Ca-Mg balance, yield target and local agronomic advice. Film and full-PDF downloads require sign-in and at least 1 contribution point.
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20 magnesium, chlorophyll, photosynthesis and deficiency-diagnosis scenes · Bilingual image PDFRead all pages in one expandable viewer instead of a scattered gridOpen viewer⌄
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SUGARCANE UNDERGROUND MICROWORLD · FILM 08
Sugarcane's Protein Link: Sulfur, Nitrogen Synergy and Sulfur Deficiency Diagnosis
甘蔗的蛋白质纽带：硫、氮协同与缺硫诊断
Follow sulfur into sugarcane's protein-building system
跟随硫元素进入甘蔗的蛋白质装配系统
Trace sulfur from mineralization and root uptake through xylem transport, sulfur-containing amino acids and nitrogen-sulfur synergy, then compare sulfur clues in younger leaves with nitrogen clues in older leaves.
从有机质矿化、土壤溶液和根毛吸收，到木质部运输、含硫氨基酸与氮硫协同，认识硫对生长的作用，并学习区分幼叶先黄的缺硫线索和老叶先黄的缺氮线索。
Everyone can watch free. Leaf color alone cannot confirm the cause. Sulfur need, source and rate should reflect soil and leaf tests, texture, organic matter, rainfall or irrigation, previous inputs and local agronomic advice. Film and full-PDF downloads require sign-in and at least 1 contribution point.
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20 sulfur cycling, nitrogen-sulfur synergy, protein synthesis and deficiency-diagnosis scenes · Bilingual image PDFRead all pages in one expandable viewer instead of a scattered gridOpen viewer⌄
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SUGARCANE UNDERGROUND MICROWORLD · FILM 09
Sugarcane's Silicon Shield: Lodging, Drought and Biological Defense
甘蔗的硅防线：抗倒伏、抗旱与生物屏障
Follow silicon from soil into sugarcane's structural defenses
跟随硅元素从土壤进入甘蔗的结构防线
Trace silicon from mineral weathering and root uptake through xylem transport, epidermal deposition, stalk strength, lodging resistance, drought response and biological barriers.
从硅酸盐风化、根毛吸收和木质部运输，到叶表皮硅化、茎秆机械强度、抗倒伏、干旱响应及病虫屏障，理解硅是系统管理中的支持因素。
Everyone can watch free. Lodging, drooping leaves and weak stalks do not diagnose silicon status by appearance alone. Base silicon need, source and rate on soil and tissue tests, soil properties, crop stage, local trials and agronomic advice. Film and full-PDF downloads require sign-in and at least 1 contribution point.
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20 silicon uptake, transport, resilience, field diagnosis and management scenes · Bilingual image PDFRead all pages in one expandable viewer instead of a scattered gridOpen viewer⌄
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SUGARCANE UNDERGROUND MICROWORLD · FILM 10
Sugarcane's Growing-Point Guardian: Boron, Cell Walls and Deficiency Diagnosis
甘蔗的生长点守护者：硼、细胞壁与缺硼诊断
Follow boron from soil to the growing point, cell walls and unfolding young leaves
从土壤硼到甘蔗生长点，观察细胞壁与幼叶形成
Trace boron through soil water, root hairs and xylem, then examine cell-wall formation, meristems, young-leaf unfolding, root tips, possible deficiency, excess and look-alike stresses.
影片展示硼在土壤水、根毛和木质部中的路径，以及它与细胞壁、生长点、幼叶展开和根尖发育的关系；同时比较疑似缺硼、过量及相似胁迫表现。
Everyone can watch free. Distorted young leaves, growing-point injury and translucent water-soaked lesions are clues, not a stand-alone diagnosis. Boron's safe range is narrow; use soil and tissue evidence, field history and local agronomic advice. Film and full-PDF downloads require sign-in and at least 1 contribution point.
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20 boron movement, uptake, growing-point, diagnosis and precision-management scenes · Bilingual image PDFRead all pages in one expandable viewer instead of a scattered gridOpen viewer⌄
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SUGARCANE UNDERGROUND MICROWORLD · FILM 11
Sugarcane's Iron Detective: Rhizosphere Iron, Photosynthetic Electrons and Chlorosis Diagnosis
甘蔗叶绿侦探：根际铁、光合电子与黄化诊断
Track rhizosphere iron availability, root uptake and chlorosis clues in sugarcane
追踪根际铁的有效性、根系吸收与叶片黄化线索
Explore soil iron pools, pH and redox, rhizosphere microbes, root uptake, xylem transport, photosynthetic electron transfer, chlorosis and look-alike stresses.
影片展示土壤铁库、酸碱度与氧化还原状态、根际微生物、根毛吸收、木质部运输及铁在光合电子传递中的作用，并比较缺铁黄化与相似胁迫。
Everyone can watch free. Yellowing of young leaves, even near-white leaves in severe cases, is a clue rather than a stand-alone diagnosis. Compare leaf age and field pattern, and assess drainage, root-zone stress, soil and tissue evidence before treatment. Film and full-PDF downloads require sign-in and at least 1 contribution point.
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20 iron-availability, rhizosphere, uptake, transport, chlorosis-diagnosis and management scenes · Bilingual image PDFRead all pages in one expandable viewer instead of a scattered gridOpen viewer⌄
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SUGARCANE UNDERGROUND MICROWORLD · FILM 12
Sugarcane's Manganese Energy Switch: Photosystem II, Water Splitting and Manganese Diagnosis
甘蔗的锰能量开关：光系统Ⅱ、水裂解与缺锰诊断
Track manganese availability, uptake, transport and water splitting in photosystem II
追踪土壤锰有效性、吸收运输与光系统Ⅱ的水裂解过程
Explore soil manganese pools, pH and waterlogging, rhizosphere chemistry, root uptake, xylem transport, the manganese-calcium cluster, deficiency clues and field verification.
影片展示土壤锰库、pH与积水影响、根际化学、根系吸收、木质部运输、锰钙簇和缺锰鉴别，并说明如何通过规范采样和小区试验验证。
Everyone can watch free. Pale interveinal striping on young leaves is only a clue, not a stand-alone manganese diagnosis. Rule out iron, magnesium and nitrogen deficiencies, disease, root injury and waterlogging, then assess leaf position, field pattern, soil conditions and tissue evidence. Film and full-PDF downloads require sign-in and at least 1 contribution point.
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20 manganese-availability, rhizosphere, photosystem-II, deficiency-diagnosis and evidence-based management scenes · Bilingual image PDFRead all pages in one expandable viewer instead of a scattered gridOpen viewer⌄
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SUGARCANE UNDERGROUND MICROWORLD · FILM 13
Sugarcane's Zinc Growth Code: Enzymes, Young Leaves, Internodes and Zinc Diagnosis
甘蔗的锌生长密码：酶、幼叶、节间与缺锌诊断
Follow zinc from the rhizosphere into enzymes, young leaves and growing internodes
追踪锌从土壤根际进入酶系统、幼叶和节间的全过程
Explore soil zinc pools, pH and liming, root-hair uptake, xylem transport, zinc-supported enzymes, young-leaf banding, thin stalks, restricted roots and field verification.
影片展示土壤锌库、pH与石灰影响、根毛吸收、木质部运输、含锌酶、幼叶宽黄带、细茎与弱根系，并说明如何规范采样和用重复小区验证。
Everyone can watch free. A broad yellow band on a young leaf while the midrib and margins remain green is a zinc-deficiency clue, not a stand-alone diagnosis. Rule out manganese, iron and magnesium deficiencies, disease and root stress, then combine standardized tissue and soil tests. Film and full-PDF downloads require sign-in and at least 1 contribution point.
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20 zinc-availability, uptake, enzyme-system, deficiency-diagnosis and evidence-based management scenes · Bilingual image PDFRead all pages in one expandable viewer instead of a scattered gridOpen viewer⌄
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SUGARCANE UNDERGROUND MICROWORLD · FILM 14
Sugarcane Micronutrient Symphony: Copper, Molybdenum, Chloride, Nickel and the Rhizosphere Microbiome
甘蔗微量元素协奏曲：铜、钼、氯、镍与根际微生物网络
See how trace elements work together across soil, microbes, roots and sugarcane
观察多种微量元素如何在土壤、微生物、根系与蔗株之间协同运作
Explore copper, molybdenum, chloride and nickel, their interactions with boron, iron, manganese and zinc, and how exudates, fungal hyphae and bacterial biofilms alter availability.
影片综合展示铜、钼、氯和镍的功能，连接硼、铁、锰、锌之间的协同与竞争，并解释根系分泌物、菌丝和细菌生物膜如何改变元素有效性。
Everyone can watch free. The gap between an adequate and excessive trace-element supply can be narrow, and visible symptoms often overlap. Use soil, tissue, irrigation-water and replicated field evidence before supplementation. Film and full-PDF downloads require sign-in and at least 1 contribution point.
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20 trace-element pool, rhizosphere transformation, interaction, diagnosis and evidence-based management scenes · Bilingual image PDFRead all pages in one expandable viewer instead of a scattered gridOpen viewer⌄
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CORE ENTRANCES
Core knowledge entrances
The homepage keeps the main functions clear; advanced tools appear when needed.
01
World Sugarcane Knowledge Center
Encyclopedia, varieties, machinery, pests and diseases, research, and archives.
02World Wheat Knowledge Center
Varieties, cultivation, crop protection, machinery, research, and historical records.
03World Maize Knowledge Center
Varieties, cultivation, mechanization, research, and industry information.
02Agricultural Knowledge
Explore knowledge by crop, topic, and practical setting.
03Research and Literature
Sources, authors, dates, DOI, and copyright status are preserved.
04Agricultural Images
Visual archives with sources, descriptions, dates, and license status.
05Agricultural Videos
An index of fieldwork, machinery, educational, and historical videos.
06Agricultural Machinery
Equipment principles, models, maintenance, and operating knowledge.
07Experts and Contributors
Respecting long-term practice, research, and knowledge stewardship.
08Companies and Products
Company information is clearly separated from independent knowledge content.
09Agricultural Community
Ask questions, correct errors, add materials, and collaborate on knowledge.
FIRST KNOWLEDGE MODEL
Build the world's sugarcane knowledge system first
Developing knowledge step by step across history, varieties, agronomy, soil, water and nutrients, pests and diseases, machinery, harvesting, sugar processing, industry, and people. Content is published after source verification and quality control.
Enter the Sugarcane Knowledge CenterSugarcane EncyclopediaVarieties and BreedingCultivation, Water and NutrientsPests and DiseasesAgricultural MachineryResearch and Images
Simple enough for agricultural practitioners, rigorous enough for researchers.
First-time users should find the main functions within one minute.
Interfaces can evolve; articles, images, users, and revision records must be preserved.
Global Sugarcane Country Communities
Connecting farmers, engineers, experts, and original-content contributors in India, Japan, Brazil, China, and around the world.
Global Community
Build sugarcane groups by country
Public, topic, and private collaboration groups, with up to 20,000 members per group.
Original Contributions
Bring images and short videos into the encyclopedia
Authors choose the license scope; materials enter the digital archive after copyright and professional verification.
Contributor Honors
Contribution points, levels, and badges
Levels, professional identity, and representative honors appear on profiles and below group-chat avatars.
Multilingual
Original and translated versions coexist
The original language is preserved; translations undergo ongoing terminology and quality review and never overwrite the source.
HISTORICAL FOOTAGE · 2 DEC 2011 · 2 VIDEOS
Hongshun Whole-Stalk Sugarcane Harvester
Archival field footage of a whole-stalk harvester demonstration, on-site observation and inspection of harvested cane.
View full feature →HISTORICAL FOOTAGE · 16 NOV 2011 · 2 VIDEOS
Hengfeng Whole-Stalk Sugarcane Harvester
Archival footage of a red tracked whole-stalk harvester, its crop-guiding units and field operation.
View full feature →ARCHIVE · 20
Historical Agricultural Photography
Agricultural landscapes and rural portraits first published about two decades ago.
GAKI AGRICULTURAL PHOTOGRAPHY
Agricultural Photography
Agricultural photographs of rural portraits, crop growth, production, plants and fruit, preserved as searchable visual knowledge.
All worksRural portraitsRice productionPlants & fruit
Author-submitted works; attribution, biography and profile link can be added or revised after publication.Explore all images →
GAKI AGRICULTURAL VIDEO
Agricultural Videos
Moving images of agricultural production, field observation, rural people and machinery.
VIDEO · 00:15 · PHOTOGRAPHER: XIHONGSHI
Poetry of the Fields · A Moving Portrait
A moving rural portrait among morning light and rice fields, capturing quiet steps and changing light.
VIDEO · 00:10 · PHOTOGRAPHER: XIHONGSHI
Morning Fields · Tying Her Hair
A quiet rural portrait in morning light, moving naturally from loose hair to a finished updo.
VIDEO · 00:19
Rice Fields at Sunset
A 19-second moving landscape of rice fields, seasonal light and rural scenery.
Browse more videos by crop, production stage and machinery category in the video center.View all videos →
Latest agricultural machinery videos
View all videos →Other crop machinery
Upland Crop Field Machinery in Operation
Cultivating, ridging and fertilizing
Rotary Cultivating, Ridging and Fertilizing Machine
Planting machinery
Field Result after Mechanized Sugarcane Mulching — Part 4
Planting machinery
Whole-stalk Cane Feeding and Mulching — Part 3
Planting machinery
Rear Mechanism of a Sugarcane Planter and Mulcher — Part 2
Planting machinery
Mechanized Sugarcane Planting and Mulching — Part 1
Planting and field management
Wet-field Land Preparation at a Sugarcane Base
Planting and field management
Sugarcane Rotary Tillage and Land Preparation
CULTIVATION & MANAGEMENT · FIELD ARCHIVE · 25 JUNE 2012
Field Visit to a Sugarcane Base in Nanning, Guangxi
Two archival recordings document crop stands, a field visit and an on-site discussion.