density · Yield · Manihot esculenta (cassava)

Growth rates of three cassava varieties (Manihot esculenta Crantz) under varying population densities · 1973

• positive
  Higher plant density increased tuber yield per hectare, with a greater mean increase in Aipin Valenca than the other two varieties.
• negative
  Increasing density from 12000 to 18000 plants/ha decreased root tuber yield in Amani 4026/16.

Co. 1 Tapioca: An Improved Strain · 1977

• positive
  Closer spacing increased yield by 20.1 per cent relative to normal spacing.

  compared with normal spacing of 75 x 90 cm

ECONOIMPORTANCE OF CASSAVA AS A CARIBBEAN ALTERNATIVE IN ANIMAL FEEDS AND SELECTION OF SUITABLE CULTIVARS FOR THIS PURPOSE (A Jamaican Experience) · 1988

• positive
  Denser cassava planting significantly increased yields compared with the customary rate.

  compared with customary rate

Groundnut/Maize/Cassava Intercrop Yield Response to Fallow Age, Cropping Frequency and Crop Plant Density on an Ultisol in Southern Cameroon · 2006

• positive
  In bush fallow, both high and low plant density outyielded the Calliandra system for cassava roots.

  compared with C. calothyrsus system

• no effect
  Planting density did not affect cassava root yield.

PERFORMANCE OF CASSAVA PLANT IN SANDY SOIL UNDER DIFFERENT IRRIGATION INTERVALS, WATER QUANTITIES AND PLANT SPACING · 2007

• positive
  Maximum cassava tuber yield was associated with two-day irrigation, 100% ETc, and 75 cm spacing.
• positive
  Tubers per plant increased under two-day irrigation with 100% ETc and 125 cm spacing.

Effect Of Cowpea Planting Density On Growth, Yield And Productivity Of Component Crops In Cowpea/Cassava Intercropping System · 2008

• positive
  Cassava tuber yield was highest at 80,000 cowpea plants/ha.

cited by 1 paper here

Studies on Cassava ( Manihot esculenta Crantz) Intercropped with Fodder Cowpea ( Vigna sinensis L.) in Sandy Soil · 2011

• positive
  Cassava tuber yield was maximal at the narrowest cassava spacing and highest cowpea density in both seasons.

Comparative Evaluation of Seven Different Spacing Treatments on Weeding Regimes, Tuber Yield, Stem and Leaf Biomasses of Cassava (Manihot esculenta L) · 2012

• positive
  The 100x50cm spacing ranked second for tuber diameter.

  compared with others

• positive
  The 65x50cm and 50x50cm spacings reduced weeding cost by 50% relative to 100x100cm.

  compared with 100x100cm

• positive
  The 50x50cm spacing had the highest gross and net income.
• positive
  The 100x50cm spacing had the highest tuber weight, 57.7t/ha.

  compared with others

• negative
  The 65x50cm and 50x50cm spacings had the lowest tuber yield.

Effects of Planting Density and Ways of Left Seedling on Yield and Economic Benefit of Cassava · 2013

• positive
  Under double seedlings, high density increased cassava output value by 50.91% against low density.

  compared with low planting density

• positive
  Under single seedlings, middle density increased cassava yield by 73.83% against low density.

  compared with low planting density

• positive
  Under single seedlings, middle density increased cassava output value by 113.71% against low density.

  compared with low planting density

• positive
  Under single seedlings, high density increased cassava output value by 62.49% against low density.

  compared with low planting density

• positive
  Under double seedlings, high density increased cassava economic benefit by 84.40% against low density.

  compared with low planting density

• positive
  Under double seedlings, middle density increased cassava yield by 35.03% against low density.

  compared with low planting density

• positive
  Under double seedlings, high density increased cassava yield by 65.07% against low density.

  compared with low planting density

• positive
  Under single seedlings, middle density increased cassava economic benefit by 228.90% against low density.

  compared with low planting density

• positive
  Under single seedlings, high density increased cassava yield by 128.73% against low density.

  compared with low planting density

• positive
  Under double seedlings, middle density increased cassava economic benefit by 138.97% against low density.

  compared with low planting density

• positive
  Under double seedlings, middle density increased cassava output value by 84.49% against low density.

  compared with low planting density

• positive
  Under single seedlings, high density increased cassava economic benefit by 126.30% against low density.

  compared with low planting density

Green Structure for Soil and Water Conservation on Cultivated Steep Land · 2014

• positive
  Fresh cassava tuber yield was significantly lower in the control plots and highest with the 5 m vetiver spacing.

  compared with control plots

Effects of plant spacing and row spacing on biomass and yield traits of cassava · 2014

• positive
  Under field tests, treatment D (1.0 m +0.8 m plant spacing with 0.6 m row spacing) gave higher cassava fresh root-tuber yield (49.35 t/ha) than treatments A, B and C.

  compared with treatment A, B and C

• positive
  Under field tests, treatment D (1.0 m +0.8 m plant spacing with 0.6 m row spacing) gave higher cassava yield (15.90 t/ha) than treatments A, B and C.

  compared with treatment A, B and C

Preliminary Study on High Benefit Cultivation Model and Variety Screening of Cassava Peanut Intercropping · 2015

• positive
  One cassava row with two peanut rows at narrow or moderate cassava spacing had significantly higher yield benefit than one cassava row with three peanut rows at wide spacing.

  compared with one row cassava intercropping with three row peanut in the wide row spacing(1.3 m) of cassava

Assessment of Yield and Yield Components of Cassava (Manihot esculenta Crantz) as Influenced by Population Density and Varieties in Anyigba, Kogi State. · 2016

• positive
  Tuber yields of TME 419 and TMS 30572 were highest at 90 and 100 cm intra spacing
• negative
  Cassava yield and yield components were significantly reduced at 70 cm plant spacing

Developing recommendations for increased productivity in cassava-maize intercropping systems in Southern Nigeria · 2021

• positive
  Higher cassava density raised storage-root yield 16%.
• negative
  Higher maize density reduced cassava root yield 7% in the second cycle.

  compared with LM treatment

cites 1 paper here

Adaptation of rapid multiplication method: cassava stem and root yield at different spacings and transplanting seasons · 2022

• positive
  The 1.0 x 0.6 m spacing was the most suitable for cassava stem yield traits.

Optimizing Cassava and Bottle Gourd Intercrop Yields through Varying Plant Densities under the North Delta Conditions · 2025

• positive
  Cassava planted at 2.0 x 1.0 m and intercropped with bottle gourd gave the maximum total land equivalent ratio.

Cassava production systems optimized for double output: Seed‐cuttings and root yields · 2026

• positive
  The narrowest spacing (0.9 m x 0.4 m) gave the highest yield per area, up to 63.23 t/ha of fresh roots.

cites 1 paper here