Currently, China has become the world’s largest producer and consumer of fruit corn with the planting area of over 1.3 million and annual market consumption of 60 billion ears of corn. It is foreseeable that with the adjustment of planting structure and the upgrading of consumption structure, China's demand for fruit corn will continue to increase and there is still ample room for growth for this industry.
Weed control is a key factor affecting yield and quality of fruit corn, but at present, fruit corn growers often feel confused about how to select herbicides.
Our demand for fruit corn is increasing
• Problem one: in-season crop safety
Fruit corn varieties are more sensitive than conventional cultivated corn varieties, thus higher safety of herbicidal products are required.
Generally, commonly-used herbicide in conventional corn varieties like nicosulfuron, a sulfonylurea herbicide, is only applicable to dent corn, semident corn and flint corn. Application to certain specific varieties such as sweet corn and waxy corn is not recommended because once it is used improperly, it will cause growth inhibition, prolonged harvest period and reduced yield and quality, or serious crop injury even crop failure may occur.
Moreover, another commonly-used corn herbicide is mesotrione, however the safety this product is unstable. After treated with mesotrione, leaf bleaching often occurs and in severe cases, whole plant bleaching.
Leaf yellowing and shrinking caused by sulfonylurea herbicides
The currently existing solutions have limitations in weed control spectrum, particularly poor efficacy on important weeds such as crabgrass (Digitaria sanguinalis) and barnyard grass (Echinochloa crus-galli). Weeds are controlled incompletely and easy to resume growth after rainfall.
Crabgrass and barnyard grass treated with 30% topramezone SC (incomplete control and re-growth)
Crabgrass resumes growth after treated with 25% mesotrione+atrazine OD under low temperature and rainy weather; poor effect on foxtail (Setaria spp.)
Due to the short growing season of fruit corn, commercial crops are usually selected as subsequent crops to maximize the planting income. Long-term and large-scale overuse of atrazine products represented by 25% mesotrione+atrazine OD results in accumulation of atrazine residue in soil, which affects the growth of subsequent crops and becomes the bottleneck of crop rotation and cropping structure adjustment.
KingAgroot developed the formulation of甜糯丹® specially for fruit corn. Strict indoor bioassay and field demonstration on more than 130 varieties have been conducted in different places of China, which proved that the product is highly safe on major varieties of fruit corn and farmers can rest assured to use.
Crop safety of 甜糯丹®
甜糯丹® contains the Kingaroot’s patented compound fenpyrazone, a third-generation HPPD inhibitor in corn. With a higher activity due to its fluoride-containing structure, the product has faster and more complete activity on weeds. Obvious effects are visible within 2 to 3 DAA, and eventually kill weeds within 5 to 8 DAA. Compared with the previous HPPD inhibitors (i.e. mesotrione and topramezone), this product has broader weed control spectrum, and especially its activity on barnyard grass (Echinochloa crus-galli) and Crabgrass (Digitaria sanguinalis) is more effective and consistent.
The complete control effect of crabgrass and certain broadleaf weeds treated with 甜糯丹® at 13 DAA
The effect on crabgrass and barnyard grass treated with 25% mesotrione+atrazine OD at 8 DAA
The effect on crabgrass and barnyard grass treated with 甜糯丹® at 8 DAA
The effect on crabgrass (Digitaria sanguinalis) treated with 30% topramezone SC at 25 DAA
The effect on crabgrass treated with 甜糯丹® at 25 DAA
The efficacy comparison between 甜糯丹® (right) and market standard topramezone (left)
As the newest HPPD inhibiting herbicide, 甜糯丹® contains Kingaroot’s patented compound fenpyrazone. With low soil residual activity, this product can effectively reduce rotation risks caused by overuse of atrazine, thus bringing about excellent flexibility in subsequent crops. After a safety interval of two months, various crops can be planted, such as snow pea, pea, garlic, cabbage, pakchoi, oilseed rape, broad bean, lettuce, mustard (leaf and root), broccoli, etc.
Broccoli is very safe as a subsequent crop in corn field treated with甜糯丹®
If you are a large-scale fruit corn grower or you are running a fruit corn planting base, welcome to participate in this activity by scanning the below QR code and fill in your information and we will contact you immediately. Some “First Movers” will be selected among these initial users who are willing to accept and promote this product to get free samples of甜糯丹® large bottle.