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Low grade Rock phosphate
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The present experiment was conducted at research farm of Department of Soil Science and Agricultural Chemistry, Collage of Agriculture, Dhule (M.S.) with an objective to evaluate the phosphorus solubility and nutrient availability during phosphocomposting. Phosphocompost was prepared by using bajra straw and cotton stalks along with low grade rock phosphate (Jhabua rock phosphate, Madhya Pradesh) by pit method.
10p
trinhthamhodang1215
23-09-2020
11
1
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High-grade rock phosphate (P2O5>30%) is essential for manufacturing P fertilizers. only 39% is of high grade which could meet hardly 35-40% of the demand of P fertilizers (Indian Bureau of Mines 2014). In India, there is a predominance of low grade rock phosphate reserves and out of 260 million ton only 15.3 million ton is of high grade quality. The consumption of apatite and rock phosphate in 2011-12 was about 3.96 million tonne. Rock phosphate is usually inert in alkaline and calcareous soils.
5p
angicungduoc5
12-06-2020
13
2
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A field experiment was conducted with maize-groundnut cropping sequence. Rock phosphate and its combination with SSP were used as nutrient sources during Rabi 2016- 17 (maize taken up in Kharif 2016). The study was carried out in the Central Farm, OUAT with the help of a field experiment laid out in Randomized Block Design with seven treatment T1 Control, T2 100% P(RP),T3 100% P(SSP), T4 75% P(RP) + 25% P(SSP), T5 50% P(RP) + 50% P(SSP), T6 25% P(RP) + 75% P(SSP) and T7 100% P(SSP) + Lime @ 0.2 LR and replicated in thrice.
6p
kethamoi4
16-04-2020
12
1
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Preparation of compost enriched with rock phosphate may be considered as a suitable option for utilizing the reserves of low-grade rock phosphate for enhancing the phosphorus use efficiency of crops. This research was carried out to study the effect of combined inoculation of mycorrhiza and selected rhizobacteria on soil nutrients and P uptake by rice. The experiment was conducted in Randomized Block Design with 10 treatments having three replications.
6p
nguaconbaynhay1
08-12-2019
13
1
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