Non-Uniform Distribution of Phosphorus Fertilizer its Significance in Dry Matter Yield Production and Phosphorus Uptake

1968 ◽  
Vol 6 (3) ◽  
pp. 387-395 ◽  
Author(s):  
M. Giskin ◽  
J. Hagin
Keyword(s):  
Uniform Distribution ◽  
Dry Matter ◽  
Phosphorus Uptake ◽  
Dry Matter Yield ◽  
Phosphorus Fertilizer ◽  
Yield Production

The effect of method of application and presence of sulphate on phosphate fixation from three phosphate fertilizers applied to a krasnozem soil

1980 ◽  
Vol 20 (105) ◽  
pp. 486 ◽  
Author(s):  
RL Aitken ◽  
JD Hughes
Keyword(s):  
Dry Matter ◽  
Phosphorus Uptake ◽  
Diammonium Phosphate ◽  
Dry Matter Yield ◽  
Phosphate Fertilizers ◽  
Tomato Plants ◽  
Monocalcium Phosphate ◽  
Diffusion Rates ◽  
Phosphate Fixation ◽  
P Fertilizers

Fixation of phosphate from monocalcium, monoammonium and diammonium phosphate in a krasnozem soil was investigated in two glasshouse trials. The extent of fixation was assessed from the dry matter yield and phosphorus uptake of tomato plants. Less phosphate was fixed from monocalcium phosphate than from the ammonium phosphates, which was attributed to the higher diffusion rates of the latter and to the precipitation of dicalcium phosphate at the site of monocalcium phosphate placement. Banding of sub-optimal quantities of phosphorus increased yields, although the results suggest that banding only temporarily reduces fixation of the ammonium phosphates. Sulphate significantly increased the uptake of phosphorus when added with each of the three P fertilizers. The effect was greater when the fertilizer was banded than when mixed with the soil.

Response of subterranean clover to rock phosphates as affected by particle size and depth of mixing in the soil

1974 ◽  
Vol 14 (70) ◽  
pp. 649 ◽  
Author(s):  
AM Alston ◽  
KW Chin
Keyword(s):  
Particle Size ◽  
Dry Matter ◽  
Rock Phosphate ◽  
Phosphorus Uptake ◽  
Subterranean Clover ◽  
Phosphorus Concentration ◽  
Dry Matter Yield ◽  
Rock Phosphates ◽  
Monocalcium Phosphate ◽  
Christmas Island

Samples of Christmas Island and Florida rock phosphates with different particle size ranges were applied to a phosphorus-deficient acid sandy soil. The rock phosphates were compared with monocalcium phosphate at various levels of addition of phosphorus. The fertilizers were mixed uniformly with either the top 1, 5, or 10 cm of the soil. Dry matter yield and phosphorus uptake in the tops of subterranean clover (Trifolium subterraneum) and the distribution (by weight) of the roots in the soil were determined. Monocalcium phosphate produced higher dry matter yields (tops and roots) than rock phosphates, even when the latter were applied in amounts containing four times the amount of phosphorus added as monocalcium phosphate. The concentration and uptake of phosphorus in the tops was also higher when monocalcium phosphate was applied, although the difference in concentration decreased as the plants matured. Dry matter yield and phosphorus concentration in the clover tops were increased by increasing the fineness of grinding of rock phosphate and by increasing the depth of mixing with the soil. Increasing the depth of mixing also produced a greater weight and more even distribution of roots. The yield of tops and roots was unaffected by the depth to which monocalcium phosphate was mixed, although shallow placement concentrated the distribution of the roots near the soil surface. Florida rock phosphate was a better source of phosphorus for subterranean clover than Christmas Island rock when the samples were coarsely ground, but both rocks were equally effective when ground to give 70 per cent < 100 mesh B.S.S.

Effect of sowing density on number of tiller, ground cover and dry matteryield production of two green manure crops, winterrye (Secale cereale L.) and lolium mix

2016 ◽  
Vol 50 (5) ◽  
Author(s):  
Degife Asefa Zebire ◽  
Gerba Daba Hirpa
Keyword(s):  
Green Manure ◽  
Dry Matter ◽  
Ground Cover ◽  
Green Leaf ◽  
Winter Rye ◽  
Dry Matter Yield ◽  
Linear Effect ◽  
Yield Production ◽  
Significant Difference ◽  
Green Manure Crops

Determining the effect of sowing density is crucial for good tillering and production of dry matter yield of green manure crops. An experiment was to determine the effect of sowing density on tiller number, total dry matter yield production and ground cover by green leaf blades of two green manure crops namely winter rye and lolium. Split-plot design was used with a green manure crop as a main factor and sowing density as a sub-plot factor with six blocks in 3 different sowing densities. An advisable sowing density of 50% and 100% did show a significant difference on the number of tillers for winter rye. Sowing density did show a significant linear effect on ground cover by green leaf blades of the crops. Sowing density showed a significant linear effect on total dry matter yield. To evaluate the effect of environment further investigation would be need.

WHITE SURFACE MULCH EFFECT ON GROWTH OF SWEET CLOVER (MELILOTUS OFFICINALUS L.) IN THE GREENHOUSE

1962 ◽  
Vol 42 (4) ◽  
pp. 667-671
Author(s):  
R. Ashford ◽  
D. W. L. Read
Keyword(s):  
Dry Matter ◽  
Photosynthetic Activity ◽  
Soil Surface ◽  
Bare Soil ◽  
Dry Matter Yield ◽  
Sweet Clover ◽  
Phosphorus Fertilizer ◽  
Dual Purpose ◽  
Effect On Growth

Effect of white Styrofoam mulch on the growth of sweet clover in the greenhouse was studied at two levels of phosphorus fertilizer and with three methods of watering. The use of mulch significantly increased dry matter yield and uptake of applied phosphorus. When phosphorus was not limiting, self-irrigated pots of soil produced better growth than pots which were watered manually.A [Formula: see text] layer of Styrofoam served a dual purpose under the conditions of this test. Pots of soil with mulch not only gave a marked response in growth, but they also required less than one-third as much water to produce 1 gram of dry matter as pots with a bare soil surface. The possibility that the light reflected by Styrofoam increased photosynthetic activity in the sweet clover is being studied further.

Variability in soybean germ plasm for phosphorus uptake and use efficiency for dry matter yield

2001 ◽  
pp. 74-75 ◽  
Author(s):  
A. M. C. Furlani ◽  
P. R. Furlani ◽  
R. T. Tanaka ◽  
H. A. A. Mascarenhas ◽  
M. D. P. Delgado
Keyword(s):  
Dry Matter ◽  
Germ Plasm ◽  
Phosphorus Uptake ◽  
Dry Matter Yield ◽  
Use Efficiency

Optimum harvest date of maize for biogas and silage purposes

2009 ◽  
Vol 57 (2) ◽  
pp. 119-125
Author(s):  
G. Hadi
Keyword(s):  
Dry Matter ◽  
Biogas Production ◽  
Weather Conditions ◽  
Vegetation Period ◽  
Dry Mass ◽  
Matter Content ◽  
Harvest Date ◽  
Dry Matter Content ◽  
Dry Matter Yield ◽  
Vegetative Organs

The dry matter and moisture contents of the aboveground vegetative organs and kernels of four maize hybrids were studied in Martonvásár at five harvest dates, with four replications per hybrid. The dry matter yield per hectare of the kernels and other plant organs were investigated in order to obtain data on the optimum date of harvest for the purposes of biogas and silage production.It was found that the dry mass of the aboveground vegetative organs, both individually and in total, did not increase after silking. During the last third of the ripening period, however, a significant reduction in the dry matter content was sometimes observed as a function of the length of the vegetation period. The data suggest that, with the exception of extreme weather conditions or an extremely long vegetation period, the maximum dry matter yield could be expected to range from 22–42%, depending on the vegetation period of the variety. The harvest date should be chosen to give a kernel moisture content of above 35% for biogas production and below 35% for silage production. In this phenophase most varieties mature when the stalks are still green, so it is unlikely that transport costs can be reduced by waiting for the vegetative mass to dry.

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