Maize with groundnut and oxyfluorfen produced the highest net return.

Oxyfluorfen · yield · Zea mays (maize)Positive and negative results

1 paper in the same direction as this claim · 1 in the opposite direction

1. negative
   Treatment T5 gave lower yield attributed to phytotoxicity.

   Efficacy of tank mixture herbicides for weed control in maize. · 2014

   Opposite direction

2. positive
   Oxyfluorfen followed by hand weeding at 30 DAS raised grain yield over the weedy check, atrazine plus weeding, and two hand weedings.

   Effect of Weed and Nutrient management on Growth, Productivity and Protein content of Quality Protein Maize (Zea mays L.) · 2017 · compared with weedy check, atrazine fb HW 30 as well as HW 15 & 30 DAS

   Same direction

herbicide · yield · Zea mays (maize)Positive and negative results

499 papers in the same direction as this claim · 127 in the opposite direction · 24 reporting no difference from an alternative

1. negative
   Without herbicide, yield was reduced regardless of row spacing or population.

   Influence of Narrow Row/High Population Corn (Zea mays) on Weed Control and Light Transmittance · 1995

   Opposite direction

2. negative
   Lack of weed control reduced green ear yield and grain yield of corn.

   Corn yield response to weed and fall armyworm controls · 2010 · compared with weed control

   Opposite direction

3. no effect
   Herbicide-treated plots had no significant corn grain yield difference from handweeded plots.

   Effect of Postemergence Application Rate and Timing of Mesotrione on Corn (Zea mays) Response and Weed Control¹ · 2002 · compared with handweeded plots

   Opposite direction

4. negative
   Withholding herbicides reduced continuous corn yield by 10 to 27% in ridge tillage.

   Weed Seed Populations in Ridge and Conventional Tillage · 1988

   Opposite direction

5. negative
   Corn yields in narrow rows with reduced herbicide were about 10% below wide rows with full herbicide.

   Effect of row width on herbicide and cultivation requirements in row crops · 1992 · compared with WR with 100% RAR

   Opposite direction

6. no effect
   Under conventional tillage, several herbicide treatments gave corn yield similar to weed-free conditions.

   Influence of Tillage Systems on Giant Foxtail,Setaria faberi, and Velvetleaf,Abutilon theophrasti, Density and Control in Corn,Zea mays · 1988 · compared with weed-free

   Opposite direction

7. negative
   Competition from weeds and uncontrolled vetch in treatments without herbicides reduced corn yield in three of four years by an average of 46% compared with a standard PRE herbicide treatment.

   Reduced-Herbicide Weed Management Systems for No-Tillage Corn (Zea mays) in a Hairy Vetch (Vicia villosa) Cover Crop · 1993 · compared with a standard PRE herbicide treatment of 0.6 kg ai/ha of paraquat plus 1.1 kg ai/ha of atrazine plus 2.2 kg ai/ha of metolachlor

   Opposite direction

8. no effect
   Corn yield was unaffected by residual herbicide timing or rate.

   Residual Herbicides used in Combination with Glyphosate and Glufosinate in Corn (Zea mays)¹ · 2002

   Opposite direction

642 papers more in this group

intercropping · yield · Zea mays (maize)Positive and negative results

612 papers in the same direction as this claim · 181 in the opposite direction · 40 reporting no difference from an alternative

1. no effect
   When intercropped with beans, the yields of organic and conventional systems were similar.

   Productivity, profitability and partial nutrient balance in maize-based conventional and organic farming systems in Kenya · 2016

   Opposite direction

2. no effect
   Seeding intercrops when corn was 0.15 to 0.30 m high did not change first-year corn grain yield.

   Contributions of Ground Cover, Dry Matter, and Nitrogen from Intercrops and Cover Crops in a Corn Polyculture System¹ · 1987

   Opposite direction

3. negative
   At 120 kg N ha−1, legume intercrops reduced maize yields by 18 to 31%.

   Relay‐Intercropping of Sunnhemp and Cowpea into a Smallholder Maize System in Zimbabwe · 2000

   Opposite direction

4. no effect
   Intercropping did not significantly affect maize grain yield in 2007.

   Effect of Intercropping and Crop Arrangement on Yield and Productivity of Late Season Maize/soybean Mixtures in the Humid Environment of South Southern Nigeria · 2012

   Opposite direction

5. negative
   Intercropping reduced maize grain yield by 23–70%.

   Yield stability of cassava, maize, soya bean and cowpea intercrops · 2003 · compared with sole crop

   Opposite direction

6. negative
   Intercropping maize or sorghum with legumes reduced leaf area indices, fresh weight yield at anthesis and straw yield.

   Effects of Intercropping Maize or Sorghum with Cowpeas, Pigeon Peas or Beans · 1973

   Opposite direction

7. negative
   White lupine intercropping inhibited maize growth and yield.

   Growth and phosphorus uptake of maize cultivated alone, in mixed culture with other crops or after incorporation of their residues · 2003

   Opposite direction

8. negative
   In maize/beans intercrop, maize yield was depressed by 15% compared with sole maize.

   The effect of planting combinations and weeding on the growth and yield of component crops of maize/bean and maize/pumpkin intercrops · 2002 · compared with its sole yield

   Opposite direction

825 papers more in this group