{"id":1134,"date":"2026-08-27T05:22:13","date_gmt":"2026-08-27T05:22:13","guid":{"rendered":"https:\/\/hay-balers.com\/?p=1134"},"modified":"2026-08-27T05:25:15","modified_gmt":"2026-08-27T05:25:15","slug":"clover-hay-rake","status":"publish","type":"post","link":"https:\/\/hay-balers.com\/ru\/application\/clover-hay-rake\/","title":{"rendered":"Clover Hay Raking: Prevent Leaf Shatter in All Three Varieties"},"content":{"rendered":"
<\/span><\/p>\n

Raking Clover Hay: Preventing Leaf Shatter in Red, White and Crimson Varieties<\/h2>\n

\n Clover hay raking is mechanically more demanding than alfalfa raking in one specific dimension: clover petiole tensile strength drops more steeply and at higher moisture content than alfalfa petiole strength as the crop dries. Red clover leaf petioles lose 50% of their green tensile strength at approximately 48% crop moisture \u2014 roughly 5 percentage points higher than alfalfa. This means the clover hay rake must operate at lower ground pressure and slower speed than an alfalfa rake at equivalent crop moisture, and the raking window for clover is narrower and begins earlier in the drying cycle.\n <\/p>\n

Clover Leaf Attachment Mechanics: Why Clover Loses Leaves Faster Than Alfalfa<\/h2>\n

\n The structural difference between clover and alfalfa leaf attachment is at the petiole-stem junction. Alfalfa leaflets attach via a compound leaf structure where the central rachis distributes mechanical stress across multiple attachment points before reaching the stem. A single tine impact force on an alfalfa leaf is divided among 3-5 leaflet petioles before any one attachment is loaded to failure. Clover leaflets \u2014 each on an individual petiole attached directly to the main stem \u2014 have no equivalent load distribution mechanism. A single tine impact loads one petiole directly, with no structural redundancy.\n <\/p>\n

\n This architectural difference means clover leaves detach at lower absolute impact force than alfalfa leaves at the same moisture content. At 40% crop moisture, a red clover petiole fails under approximately 0.6-0.8 N of perpendicular impact force. An alfalfa leaflet under the same moisture conditions requires 0.9-1.2 N to detach from the rachis. The practical consequence is that every raking parameter that generates tine tip impact force \u2014 ground pressure, forward speed, tine arc angle \u2014 must be set more conservatively for clover than for alfalfa at equivalent moisture to achieve equivalent leaf retention.\n <\/p>\n

\n Bloom stage at harvest also affects leaf attachment in clover. Clover harvested at early bloom stage has not yet completed stem lignification, and the leaf petioles retain higher tensile strength than fully mature stem-petiole junctions. The recommendation to harvest clover at 25-50% bloom for quality is also the recommendation that produces the most mechanically robust crop for raking \u2014 a later-cut, over-mature clover stand with hard, lignified stems and dry, fragile leaf petioles is the most difficult clover material to rake without excessive leaf loss.\n <\/p>\n

Red, White and Crimson Clover: Physical and Raking Parameter Comparison<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Parameter<\/th>\nRed Clover
(Trifolium pratense)<\/th>\n		White Clover
(Trifolium repens)<\/th>\n		Crimson Clover
(Trifolium incarnatum)<\/th>\n<\/tr>\n<\/thead>\n
Plant height at harvest<\/td>\n50-90 cm<\/td>\n15-40 cm (prostrate habit)<\/td>\n40-90 cm<\/td>\n<\/tr>\n
Leaf-to-stem ratio (DM)<\/td>\n50-60% leaf<\/td>\n65-75% leaf (high value at risk)<\/td>\n45-55% leaf<\/td>\n<\/tr>\n
Optimal rake moisture window<\/td>\n42-52%<\/td>\n45-55% (wetter window \u2014 small plants)<\/td>\n40-50%<\/td>\n<\/tr>\n
Recommended ground pressure<\/td>\n16-22 kg\/wheel<\/td>\n12-18 kg\/wheel (minimum setting)<\/td>\n18-24 kg\/wheel<\/td>\n<\/tr>\n
Max forward speed<\/td>\n8-10 km\/h<\/td>\n7-9 km\/h (low height \u2014 tine clearance critical)<\/td>\n8-11 km\/h<\/td>\n<\/tr>\n
Tine arc angle (leaf protection)<\/td>\n18-22 degrees<\/td>\n16-20 degrees<\/td>\n18-22 degrees<\/td>\n<\/tr>\n
Bloat risk in windrow<\/td>\nModerate \u2014 wilt to below 40% MC before feeding<\/td>\nHigh \u2014 highest bloat risk of three species<\/td>\nLow \u2014 lower soluble protein content<\/td>\n<\/tr>\n
Typical DM loss at optimal settings<\/td>\n3.0-5.0%<\/td>\n4.0-6.0% (prostrate \u2014 ground contact events higher)<\/td>\n2.5-4.5%<\/td>\n<\/tr>\n
Special raking consideration<\/td>\nHairy stems \u2014 higher friction, forms dense mat<\/td>\nProstrate habit \u2014 tine must contact near-ground level<\/td>\nAnnual \u2014 single cut, high DM value in leaves<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n

Clover Bloat Risk and Windrow Configuration Management<\/h2>\n

\n Ruminant bloat risk from clover consumption is a forage management concern that directly affects windrow configuration decisions in clover hay raking operations. Fresh or inadequately wilted clover \u2014 red or white \u2014 contains soluble proteins and saponins that cause frothy bloat in cattle when consumed at moisture content above 40%. The windrow must be managed to achieve complete wilting below 40% moisture before baling and feeding, which places specific constraints on windrow width and density at the raking stage.\n <\/p>\n

\n\n\n\n\n\n\n\n\n
Windrow Width<\/th>\nEstimated Hours to Reach 35% MC
(25\u00b0C, 40% RH, moderate wind)<\/th>\n		Bloat Risk at Baling (if baled at 35% MC)<\/th>\nNotes<\/th>\n<\/tr>\n<\/thead>\n
Below 1.0 m (very narrow)<\/td>\n3-5 hours post-rake<\/td>\nLow<\/td>\nRisk of over-drying leaves before baling in hot conditions<\/td>\n<\/tr>\n
1.0-1.4 m (narrow)<\/td>\n5-8 hours post-rake<\/td>\nLow-moderate<\/td>\nRecommended range for red and crimson clover hay<\/td>\n<\/tr>\n
1.4-1.7 m (standard)<\/td>\n8-14 hours post-rake<\/td>\nModerate<\/td>\nAcceptable for low-bloat-risk crimson clover; marginal for red\/white<\/td>\n<\/tr>\n
Above 1.7 m (wide)<\/td>\n14-22 hours post-rake<\/td>\nHigh<\/td>\nNot recommended for red or white clover when cattle will consume the hay within 30 days of baling<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n

\n For white clover \u2014 the highest bloat-risk variety \u2014 windrow width should be maintained at 1.0-1.3 m at raking, and the crop should be allowed to field-cure to below 35% moisture before baling. This typically requires a 6-10 hour post-rake drying period under standard summer conditions, which constrains the daily baling schedule more than most other forage crops. The operational implication is that white clover hay fields should be raked in the afternoon of day 1 and baled in the morning of day 2, allowing overnight field-drying to complete the wilt phase.\n <\/p>\n

White Clover Ground Clearance: The Prostrate Habit Problem<\/h2>\n

\n White clover grows with a prostrate (horizontal) stem habit \u2014 the stolons run along the ground surface rather than growing upright. At the time of cutting, white clover plant height above the mower blade is typically only 15-30 cm, compared to 50-90 cm for red clover. After cutting, the short white clover material lies very close to the ground surface \u2014 often within 30-50 mm of the soil surface in the windrow.\n <\/p>\n

\n This creates a specific tine geometry challenge for the clover hay rake. A tine set to the minimum ground pressure for leaf protection (12-18 kg) must still maintain consistent soil-surface contact across the full wheel rotation arc to pick up the short-stemmed material without leaving residue between wheel passes. On soft or uneven soil, a minimum-pressure tine may bounce above the windrow surface in the 40-60 mm gap between the ground and the lowest material, producing a residue strip at every wheel arc contact point.\n <\/p>\n

\n The practical adjustment for white clover is to lower the wheel arm pivot point on machines that offer height adjustment \u2014 lowering the tine entry angle at the ground contact point rather than increasing spring preload. This allows the tine to reach closer to the ground at minimum spring pressure, picking up the short material without increasing the impact force that causes leaf detachment. On machines without pivot height adjustment, a slight ground pressure increase (to 18-22 kg) combined with reduced forward speed (7-8 km\/h) is the compromise that minimizes both residue loss and leaf shatter simultaneously.\n <\/p>\n

Machine Specification for Clover Hay Raking<\/h2>\n

\n Clover hay raking requires the minimum ground pressure settings within the commercial hay rake operating range. For a 9-wheel finger wheel rake, this means the spring preload system must be capable of reliable calibration at 12-18 kg per wheel without spring bounce or collar drift \u2014 which requires a spring and collar assembly with tight manufacturing tolerance at the low-preload end of the adjustment range. Machines designed primarily for heavy alfalfa or grass operations, with spring systems optimized for 25-45 kg operating range, may not maintain consistent 12-15 kg preload reliably across all wheel positions.\n <\/p>\n

\n The 9LZY-9.0 finger wheel rake<\/a> at 9.0 m working width operates across the ground pressure range required for clover hay raking operations \u2014 from 18 kg per wheel for white clover leaf-protection settings through 38 kg for heavy timothy first-cut mat conditions \u2014 with independent spring collar adjustment per wheel position. The 9-wheel configuration at 9.0 m produces swath overlaps that are sufficient for complete pickup of the short, prostrate white clover material across the full working width without requiring the elevated ground pressure that risks leaf detachment in this crop.\n <\/p>\n

Crimson Clover: Single-Cut Annual Management<\/h2>\n

\n Crimson clover (Trifolium incarnatum) is an annual species harvested in a single cut per season, typically in late spring before seed set. Because it is harvested once and the stand does not regrow after cutting, the economic pressure to minimize dry matter loss at raking is higher than for perennial varieties where a poorly-raked cut can be partially recovered in subsequent cuts. The entire seasonal yield of a crimson clover hay crop depends on the quality of a single raking and baling operation.\n <\/p>\n

\n Crimson clover stem structure is more upright and less hairy than red clover, which means the crop stands better after cutting and forms a more open, aerated windrow that dries faster than red clover. Under equivalent ambient conditions, crimson clover reaches the optimal 40-50% raking moisture window approximately 2-4 hours earlier than red clover cut at the same time. This earlier window must be actively managed \u2014 raking too soon (above 55% moisture) on crimson clover causes windrow collapse and delayed drying; raking too late (below 35% moisture) produces the highest leaf shatter rates in the annual cycle with no opportunity for recovery from subsequent cuts.\n <\/p>\n

\n Ground pressure for crimson clover hay raking should be set at 18-24 kg per wheel \u2014 slightly higher than red clover minimum settings \u2014 because crimson clover stems are stiffer and require more tine force to fully displace from the mat into the windrow. At pressures below 16 kg, crimson clover first-cut material in a dense stand will produce consistent residue between wheel passes, reducing overall yield recovery.\n <\/p>\n

\n

Source a Clover-Optimized Hay Rake for Your Operation<\/p>\n

Canada hay-balers Co. Ltd. provides technical documentation for clover and legume hay raking operations, including ground pressure range specifications, tine arc geometry data, and OEM configurations for leaf-sensitive forage markets. Contact us with your clover species, seasonal area, and tractor HP:<\/p>\n

\n sales@hay-balers.com<\/a>\n <\/p>\n<\/p><\/div>\n<\/div>\n

Raking Clover in Mixed Grass-Legume Stands: Calibrating for the Most Fragile Component<\/h2>\n

Clover Leaf as the Yield-Quality Limiting Factor in Blended Stands<\/h3>\n

\n In mixed stands where clover is seeded with timothy, orchardgrass, or fescue, the clover leaf fraction carries disproportionate nutritional value relative to its mass contribution to the total windrow. Crude protein content in red clover leaf is typically 22-28% on a dry matter basis, compared to 14-18% for orchardgrass leaf and 10-14% for tall fescue leaf. A 25% clover component by dry weight in a mixed windrow may contribute 40-50% of the total protein yield of that windrow. Losing 8% of the clover leaf fraction through over-aggressive raking reduces the windrow protein content by 3-4 percentage points \u2014 a reduction that changes the hay from dairy-quality to beef-backgrounding quality in most forage grading systems.\n <\/p>\n

\n This nutritional value concentration effect means the clover leaf is not just the most mechanically fragile component of the mixed stand \u2014 it is also the highest-value component per unit mass. The economic penalty from over-raking the clover component is therefore disproportionate to the physical quantity of leaf material lost. The raking protocol for mixed grass-clover stands must be calibrated to protect the clover leaf fraction even when it represents a minority of the total windrow mass, because its loss carries a quality and market value penalty that exceeds its mass fraction.\n <\/p>\n

\n Ground pressure setting in mixed grass-clover stands should always be set to the clover minimum (16-22 kg per wheel for red clover, 12-18 kg for white clover) rather than the grass optimum. This conservative setting will produce marginally incomplete raking of the grass fraction in some field conditions \u2014 visible as a thin grass residue between wheel arcs \u2014 but the quality protection of the clover leaf fraction justifies this trade-off in any mixed stand where the clover component exceeds 20% of the total dry matter yield.\n <\/p>\n

\n Windrow width in mixed grass-clover stands should be set at the lower end of the target range \u2014 1.2-1.5 m rather than 1.5-1.8 m \u2014 to accelerate drying and reduce the post-rake handling time before baling. A narrow windrow that reaches baling moisture faster reduces the total time the clover leaf material is exposed to mechanical wind-driven abrasion from adjacent windrows and field edge debris, which is a secondary leaf loss mechanism in open-field conditions that is often overlooked in raking protocol discussions.\n <\/p>","protected":false},"excerpt":{"rendered":"

Raking Clover Hay: Preventing Leaf Shatter in Red, White and Crimson Varieties Clover hay raking is mechanically more demanding than alfalfa raking in one specific dimension: clover petiole tensile strength drops more steeply and at higher moisture content than alfalfa petiole strength as the crop dries. Red clover leaf petioles lose 50% of their […]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[159],"tags":[161,163,162],"class_list":["post-1134","post","type-post","status-publish","format-standard","hentry","category-hay-rake-article","tag-clover-hay-rake","tag-clover-leaf-loss","tag-raking-clover-hay"],"_links":{"self":[{"href":"https:\/\/hay-balers.com\/ru\/wp-json\/wp\/v2\/posts\/1134","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hay-balers.com\/ru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hay-balers.com\/ru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hay-balers.com\/ru\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hay-balers.com\/ru\/wp-json\/wp\/v2\/comments?post=1134"}],"version-history":[{"count":3,"href":"https:\/\/hay-balers.com\/ru\/wp-json\/wp\/v2\/posts\/1134\/revisions"}],"predecessor-version":[{"id":1137,"href":"https:\/\/hay-balers.com\/ru\/wp-json\/wp\/v2\/posts\/1134\/revisions\/1137"}],"wp:attachment":[{"href":"https:\/\/hay-balers.com\/ru\/wp-json\/wp\/v2\/media?parent=1134"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hay-balers.com\/ru\/wp-json\/wp\/v2\/categories?post=1134"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hay-balers.com\/ru\/wp-json\/wp\/v2\/tags?post=1134"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}