Abstract
2 Abstract: A field experiment was carried out at the Experimental Farm of the Faculty of Agriculture, Moshtohor, Benha University, Qalubiya Governorate, Egypt during the two successive seasons of 2010 and 2011 to investigate K fertilization by using feldspar-K and sulphate-K and biofertiliztion with a mixture of N-free fixing bacteria, P-dissolving bacteria and silicate dissolving bacteria on growth of potato (Solanum tuberosum L cv. Sponta). The experimental design was a randomized complete block, factorial in 3 replicates. Factors of the experiment and their treatments were as follows: (A)K-addition, five treatments :(A ) 100% dose sulphate- 1 K(SK), (A ) 75% dose as SK + 25% dose as feldspar-K(FK),(A ) 50% SK + 50% FK,(A ) 25% SK + 75% FK and 2 34 (A ) 100% dose of FK, the full dose of K was 300 kg K/ha ,(B)Biofertilization, two treatments:(B ) no addition 50 of biofertilizer and (B ) addition of biofertilizer. Nitrogen and phosphorus were added to all treatments at a rate 1 of 350 kg N/ha and 75 kg P/ha. Plants were sprayed 3 times with Fe, Zn, and Mn-EDTA at rate of 0.5 ,0.2 and 0.15 kg/ha, respectively, at 55, 65 and 75 days after planting in each season. Treatment A gave the highest yield 3 (tubers and shoots), macro nutrient uptake (N, P and K) in tubers and shoots, tuber size, starch content, leaf area, and total chlorophyll. Increasing the dose of feldspar-K increased nitrate content in tuber. Biofertiliztion increased yield (tubers and shoots), macro nutrient uptake (N, P and K) in tubers and shoots, tuber size, starch content, leaf area, and total chlorophyll. It decreased slightly nitrate content in tubers.
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Claims 4
Claim · model-written summary
One potassium treatment gave the highest potato tuber and shoot yield, nutrient uptake, tuber size, starch content, leaf area and chlorophyll.
- Taxon
- Potato
Solanum tuberosumt0 - Treatment
- Treatment Ae0
- Outcome
- highest yield 3 (tubers and shoots), macro nutrient uptake (N, P and K) in tubers and shoots, tuber size, starch content, leaf area, and total chlorophylle0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment A gave the highest yield 3 (tubers and shoots), macro nutrient uptake (N, P and K) in tubers and shoots, tuber size, starch content, leaf area, and total chlorophyll.”
t0“Potato (Solanum tuberosum L.)”
Claim · model-written summary
Increasing feldspar-K dose increased tuber nitrate content.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- feldspar-Ke0
- Outcome
- nitrate content in tubere0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing the dose of feldspar-K increased nitrate content in tuber.”
t0“Potato (Solanum tuberosum L.)”
Claim · model-written summary
Biofertilization increased tuber and shoot yield, nutrient uptake, tuber size, starch, leaf area and chlorophyll.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- Biofertiliztione0
- Outcome
- yield (tubers and shoots), macro nutrient uptake (N, P and K) in tubers and shoots, tuber size, starch content, leaf area, and total chlorophylle0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Biofertiliztion increased yield (tubers and shoots), macro nutrient uptake (N, P and K) in tubers and shoots, tuber size, starch content, leaf area, and total chlorophyll.”
t0“Potato (Solanum tuberosum L.)”
Claim · model-written summary
Biofertilization slightly decreased tuber nitrate content.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- Biofertiliztione1
- Outcome
- nitrate content in tuberse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It decreased slightly nitrate content in tubers.”
e1“Biofertiliztion increased yield”
t0“Potato (Solanum tuberosum L.)”
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